JPH07245217A - Inductance element and coil for it - Google Patents
Inductance element and coil for itInfo
- Publication number
- JPH07245217A JPH07245217A JP6056808A JP5680894A JPH07245217A JP H07245217 A JPH07245217 A JP H07245217A JP 6056808 A JP6056808 A JP 6056808A JP 5680894 A JP5680894 A JP 5680894A JP H07245217 A JPH07245217 A JP H07245217A
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- magnetic core
- coil
- shaped
- inductance element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
- H01F2005/043—Arrangements of electric connections to coils, e.g. leads having multiple pin terminals, e.g. arranged in two parallel lines at both sides of the coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F5/00—Coils
- H01F5/04—Arrangements of electric connections to coils, e.g. leads
- H01F2005/046—Details of formers and pin terminals related to mounting on printed circuits
Landscapes
- Coils Of Transformers For General Uses (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、薄形で電流容量の大き
なチョークコイルやトランスを構成するのに適したイン
ダクタンス素子及び該素子用コイルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inductance element suitable for forming a thin choke coil or transformer having a large current capacity and a coil for the element.
【０００２】[0002]
【従来の技術】従来のインダクタンス素子としては、以
下に述べる構成のものが知られている。2. Description of the Related Art As a conventional inductance element, a structure described below is known.
【０００３】ａ．ボビンに線材（ワイヤー）を巻回した
コイルを磁芯に組み込む構成、 ｂ．ボビンレスコイルを磁芯に組み込む構成、 ｃ．ドラム状や丸棒状の磁芯に線材を直接巻き込む構
成、 ｄ．実開平５−１３０１６号で提案されている構成であ
って、平角線のコイルの内側に内部コアを挿入し、それ
らを略箱型の外殻コア内に収納し、コイル端部を直接外
部接続用端子として引き出したもの、 ｅ．実開平５−４６２５２号で提案されている構成であ
って、鍔付きコアにコイルを設け、ガルウィング状端子
を植設した絶縁ベースの底面側切欠部に前記コアの鍔を
嵌合固定したもの。A. A configuration in which a coil in which a wire is wound around a bobbin is incorporated in a magnetic core, b. A configuration in which the bobbinless coil is incorporated in the magnetic core, c. A structure in which a wire is directly wound around a drum-shaped or round bar-shaped magnetic core, d. In the configuration proposed in Japanese Utility Model Laid-Open No. 5-13016, an inner core is inserted inside a coil of a rectangular wire, and they are housed in a substantially box-shaped outer shell core, and the coil end is directly externally connected. Drawn out as a terminal for use, e. A structure proposed in Japanese Utility Model Laid-Open No. 5-46252, in which a coil is provided on a flanged core, and the flange of the core is fitted and fixed to a notch on the bottom surface side of an insulating base in which a gull wing-shaped terminal is implanted.
【０００４】[0004]
【発明が解決しようとする課題】ところで、ボビンを使
用するインダクタンス素子はボビンの肉厚の分だけ導体
の占積率が下がり、細い線材を使用しなければならず、
銅損が増大する。この銅損の増大は発熱増加及び効率低
下の原因となる。また、ボビンレスコイルは端末の処理
がしにくい問題がある。By the way, in the inductance element using the bobbin, the space factor of the conductor is reduced by the thickness of the bobbin, and a thin wire must be used.
Copper loss increases. This increase in copper loss causes increased heat generation and reduced efficiency. Further, the bobbinless coil has a problem that it is difficult to process the terminal.
【０００５】また、実開平５−１３０１６号の構成は、
構造が非常に複雑で次のような問題点がある。Further, the construction of Jitsukaihei 5-13016 is as follows.
The structure is very complicated and has the following problems.
【０００６】(1) 磁芯が内部コアと外殻コアとに分か
れているか、又は二分割されており、組立の際に接着そ
の他の手段による固定が必要である。(1) The magnetic core is divided into an inner core and an outer shell core, or is divided into two, and it is necessary to fix it by adhesion or other means during assembly.
【０００７】(2) コイル端部を直接外部接続用端子と
して引き出しており、需要者がプリント基板に取り付け
難い端子構造であり、表面実装に適した構造にもなって
いない。(2) The coil end portion is directly drawn out as a terminal for external connection, and the terminal structure is difficult for a user to attach to the printed circuit board, and the structure is not suitable for surface mounting.
【０００８】さらに、実開平５−４６２５２号の構成
は、次のような問題点がある。Further, the construction of Japanese Utility Model Laid-Open No. 5-46252 has the following problems.
【０００９】(1) 絶縁ベースに植設された端子がガル
ウィング状であって、端末処理端子と基板取付端子とを
共用しており、接続時のストレスにより端子浮きが発生
し易く、プリント基板への接続の信頼性が低下する恐れ
がある。(1) The terminals planted in the insulating base are gull-wing-shaped, share the terminal processing terminal and the board mounting terminal, and the terminal floating easily occurs due to the stress at the time of connection. Connection may be unreliable.
【００１０】(2) コイルに細い線を使用する場合、共
用端子では振動、衝撃が加わったときに、条件によって
は断線が発生する。(2) When a thin wire is used for the coil, the common terminal may be broken depending on the conditions when vibration or shock is applied.
【００１１】(3) 使用するコアが鍔付きのものである
が、コア強度（特に焼成前）に難があり、破損し易い。(3) The core used has a brim, but the core strength (particularly before firing) is difficult and the core is easily damaged.
【００１２】(4) コア成型のための金型が複雑にな
り、均一に加圧しにくくなり、コアの密度バランスも悪
くなる。(4) The mold for molding the core becomes complicated, it becomes difficult to uniformly press, and the density balance of the core becomes poor.
【００１３】本発明の第１の目的は、薄形化や電流容量
の増大を図ることができ、特殊形状の磁芯を必要とせ
ず、磁芯の固定やコイル端末処理が確実かつ容易で基板
への装着性の良好なインダクタンス素子を提供すること
にある。A first object of the present invention is to reduce the thickness and increase the current capacity, without requiring a magnetic core of a special shape, and fixing the magnetic core and treating the coil end reliably and easily. It is to provide an inductance element having a good mountability to the.
【００１４】本発明の第２の目的は、薄形化や電流容量
の増大を図ることができ、端末処理が確実かつ容易なイ
ンダクタンス素子用コイルを提供することにある。A second object of the present invention is to provide a coil for an inductance element which can be thinned and whose current capacity can be increased and whose terminal treatment is reliable and easy.
【００１５】本発明のその他の目的や新規な特徴は後述
の実施例において明らかにする。Other objects and novel features of the present invention will be clarified in Examples described later.
【００１６】[0016]
【課題を解決するための手段】上記目的を達成するため
に、本発明のインダクタンス素子は、基板取付端子と端
末処理端子とを有するとともに磁芯位置決め手段を有す
る磁芯取付用端子台と、該磁芯位置決め手段で前記磁芯
取付用端子台の内側に位置決め固定される磁芯と、該磁
芯の柱状部の周囲に設けられていて平角線を環状乃至矩
形筒状に巻回してなる少なくとも一つのコイルとを備
え、前記コイルの引き出し端部に形成された穴又は切欠
きに前記端末処理端子を挿通して接続した構成としてい
る。In order to achieve the above object, the inductance element of the present invention comprises a magnetic core mounting terminal block having a substrate mounting terminal and a terminal processing terminal and magnetic core positioning means, and At least a magnetic core positioned and fixed inside the magnetic core mounting terminal block by magnetic core positioning means, and at least a rectangular wire wound around a columnar portion of the magnetic core in an annular or rectangular tubular shape. One coil is provided, and the terminal processing terminal is inserted into and connected to a hole or a notch formed at the lead-out end of the coil.
【００１７】前記コイルは前記平角線の幅広平面が巻回
軸に対してほぼ直角となるように巻回したものであるこ
とが望ましい。It is preferable that the coil is wound such that the wide flat surface of the rectangular wire is substantially perpendicular to the winding axis.
【００１８】前記磁芯は前記柱状部と前記磁芯位置決め
手段で位置決めされる外殻部とを有する構成としてもよ
い。The magnetic core may include the columnar portion and an outer shell portion positioned by the magnetic core positioning means.
【００１９】前記端末処理端子は前記コイルの引き出し
端部の穴又は切欠きに挿通される棒状端子部と平板状端
子部とを有していてもよい。The terminal processing terminal may have a rod-shaped terminal portion and a flat-plate terminal portion which are inserted into a hole or a notch in the lead-out end portion of the coil.
【００２０】本発明のインダクタンス素子用コイルは、
平角線の幅広平面が巻回軸に対してほぼ直角となるよう
に該平角線を環状乃至矩形筒状に巻回し、引き出し端部
に穴又は切欠きを形成した構成である。The coil for an inductance element of the present invention is
The flat wire is wound in an annular or rectangular tubular shape so that the wide flat surface of the flat wire is substantially perpendicular to the winding axis, and a hole or a notch is formed at the leading end.
【００２１】[0021]
【作用】本発明のインダクタンス素子は、コイルを平角
線を用いたボビンレス構造とすることができ、ボビンを
使用しない分だけ導体の占積率を向上させることがで
き、また、平角線は薄形であっても断面積を大きく設定
でき、薄形のコイル構造としても巻き数をかせぐことが
でき、小形、薄形化及び電流容量の増大を図ることがで
きる。In the inductance element of the present invention, the coil can have a bobbin-less structure using a rectangular wire, and the space factor of the conductor can be improved by the amount that the bobbin is not used. Even if it is, the cross-sectional area can be set large, and the number of turns can be increased even in the case of a thin coil structure, so that it is possible to reduce the size and thickness and increase the current capacity.
【００２２】また、磁芯取付用端子台は基板取付端子と
端末処理端子とを有し、コイル端末、すなわち平角線の
引き出し端部には前記端末処理端子に対応した穴又は切
欠きが形成されているので、各引き出し端部の穴又は切
欠きに端末処理端子を挿通し（さし込み）、はんだ付け
することでコイル端末と端末処理端子とを確実かつ容易
に接続することができる（コイル端末の位置ずれ等を発
生させずに接続ができる。）。The magnetic core mounting terminal block has a substrate mounting terminal and a terminal processing terminal, and a coil terminal, that is, a lead wire end portion of the rectangular wire is provided with a hole or a notch corresponding to the terminal processing terminal. Therefore, by inserting (inserting) the terminal treatment terminal into the hole or notch of each drawer end and soldering, the coil terminal and the terminal treatment terminal can be connected securely and easily (coil Can be connected without causing misalignment of terminals.).
【００２３】なお、平角線の引き出し端部に穴を形成し
た場合、端部の位置ずれ防止効果が一層確実になる。ま
た、前記平角線の引き出し端部に切欠きを形成する場
合、加工が容易である。When a hole is formed at the end of the rectangular wire, the effect of preventing the positional displacement of the end becomes more reliable. Moreover, when forming a notch in the lead-out end part of the said rectangular wire, processing is easy.
【００２４】また、基板取付端子と端末処理端子とが分
離されているため、プリント基板への装着性が良く、信
頼性の高いインダクタンス素子を作製できる。さらに、
磁芯取付用端子台は磁芯位置決め手段を有しており、磁
芯の磁芯取付用端子台への位置決め固定を容易に行うこ
とができる。Further, since the board mounting terminal and the terminal processing terminal are separated from each other, it is possible to manufacture an inductance element which is easy to mount on the printed board and has high reliability. further,
Since the magnetic core mounting terminal block has magnetic core positioning means, the magnetic core can be easily positioned and fixed to the magnetic core mounting terminal block.
【００２５】前記磁芯を、前記柱状部と前記磁芯位置決
め手段で位置決めされる外殻部とを有する構成とした場
合、前記柱状部を前記ボビンレス構造のコイルの中心の
貫通穴に挿入し、前記外殻部を確実に磁芯取付用端子台
で支持できる。When the magnetic core has a structure having the columnar portion and the outer shell portion positioned by the magnetic core positioning means, the columnar portion is inserted into the through hole at the center of the coil of the bobbinless structure, The outer shell can be reliably supported by the magnetic core mounting terminal block.
【００２６】前記端末処理端子が前記コイルの引き出し
端部の穴又は切欠きに挿通される棒状端子部と平板状端
子部とを有している場合、前記引き出し端部の穴又は切
欠きに棒状端子部を挿通して接続すると同時に、前記平
板状端子部を前記引き出し端部に面接触状態で接続で
き、接続面積を増加させ得る。また、前記引き出し端部
の穴又は切欠きの無いコイルの接続にも兼用できる。When the terminal processing terminal has a rod-shaped terminal portion and a flat plate-shaped terminal portion which are inserted into the hole or the notch at the lead-out end of the coil, the bar-shaped terminal is provided in the hole or the notch at the lead-out end. At the same time as inserting and connecting the terminal portion, the flat plate-shaped terminal portion can be connected to the lead-out end portion in a surface contact state, and the connection area can be increased. Further, it can also be used for connection of a coil having no hole or notch at the lead-out end.
【００２７】また、本発明のインダクタンス素子用コイ
ルによれば、平角線の幅広平面が巻回軸に対してほぼ直
角となるように該平角線を環状乃至矩形筒状に巻回した
構造であるため、薄形のコイル構造としても巻き数をか
せぐことができ、小形、薄形化及び電流容量の増大を図
ることができる。また、引き出し端部に穴又は切欠きを
形成してあり、この穴を利用して端子側への接続を確実
かつ容易に実行できる。Further, according to the coil for an inductance element of the present invention, the flat wire is wound in an annular or rectangular tubular shape so that the wide plane of the flat wire is substantially perpendicular to the winding axis. Therefore, the number of windings can be increased even with a thin coil structure, and it is possible to reduce the size and thickness and increase the current capacity. Further, a hole or a notch is formed in the lead-out end portion, and the connection to the terminal side can be surely and easily executed by utilizing this hole.
【００２８】[0028]
【実施例】以下、本発明に係るインダクタンス素子及び
該素子用コイルの実施例を図面に従って説明する。Embodiments of the inductance element and the coil for the element according to the present invention will be described below with reference to the drawings.
【００２９】図１乃至図４は本発明の第１実施例であっ
て、薄形、大電流容量のチョークコイルを構成した場合
を示す。これらの図に示すように、インダクタンス素子
としてのチョークコイルは、小径のボビンレスコイル１
と、大径のボビンレスコイル２と、一対のＥ型コア３か
ら成る磁芯と、複数個（例えば４個）の端子金具４を一
体に有する磁芯取付用端子台５とを備えている。FIGS. 1 to 4 show a first embodiment of the present invention in which a thin type, large current capacity choke coil is constructed. As shown in these figures, the choke coil as an inductance element is a bobbinless coil 1 with a small diameter.
And a large-diameter bobbinless coil 2, a magnetic core composed of a pair of E-shaped cores 3, and a magnetic core mounting terminal block 5 integrally including a plurality of (for example, four) terminal fittings 4. .
【００３０】図５に示すように前記小径のボビンレスコ
イル１及び大径のボビンレスコイル２は、それぞれ平角
線（例えば平角銅線にエナメル被覆等の絶縁被覆を施し
たもの）をその幅広平面が巻回軸に対してほぼ直角にな
るように円環状（スパイラル状）に巻回したものであ
り、各コイル１，２の引き出し端部（端末）１ａ，２ａ
は円環状部分から直線的に延長して形成されており、各
端部１ａ，２ａには穴１ｂ，２ｂがあけられている。一
対のＥ型コア３から成る磁芯に対しては大径のボビンレ
スコイル２の内側貫通穴に小径のボビンレスコイル１を
同心状に組み合わせて用いる。As shown in FIG. 5, each of the small-diameter bobbinless coil 1 and the large-diameter bobbinless coil 2 has a flat wire (for example, a flat copper wire with an insulating coating such as an enamel coating) having a wide flat surface. Is wound in an annular shape (spiral shape) so as to be substantially perpendicular to the winding axis, and the draw-out end portions (ends) 1a, 2a of the coils 1, 2 are formed.
Is formed by linearly extending from the annular portion, and holes 1b and 2b are formed in the respective end portions 1a and 2a. For a magnetic core composed of a pair of E-shaped cores 3, a small diameter bobbinless coil 1 is concentrically combined with an inner through hole of a large diameter bobbinless coil 2.
【００３１】前記磁芯を構成する一対のＥ型コア３は、
コ字状外殻部３ａとこの内側中央部に位置する円柱状部
３ｂとを有するフェライト、圧粉磁芯（圧粉鉄心）等で
構成されている。The pair of E-shaped cores 3 forming the magnetic core are
It is composed of a ferrite having a U-shaped outer shell portion 3a and a columnar portion 3b located at the inner center portion thereof, a dust core (powder iron core), and the like.
【００３２】前記磁芯取付用端子台５は、方形枠状であ
って複数個の端子金具４を持つように絶縁樹脂の一体成
形等で構成され、相互に対向する内側側面に一対のＥ型
コア３のコ字状外殻部３ａに係合する磁芯位置決め手段
としての係合溝６を有している。The magnetic core mounting terminal block 5 has a rectangular frame shape and is formed by integrally molding an insulating resin so as to have a plurality of terminal fittings 4. A pair of E-shaped terminals are formed on the inner side surfaces facing each other. It has an engaging groove 6 as a magnetic core positioning means for engaging with the U-shaped outer shell portion 3a of the core 3.
【００３３】前記端子金具４は、図６に示すように、金
属板を予めＬ字状に折り曲げ成形したもので、下部が基
板取付端子としての１個の幅広の面装着端子４ａとなっ
ており、上部は２個に分岐した棒状（ピン状）の端末処
理端子４ｂとなっている。その面装着端子４ａは、磁芯
取付用端子台５の底面に沿って外側に折り曲げられ、分
岐した端末処理端子４ｂは磁芯取付用端子台５の上面に
形成された溝部７の底面（底部）から垂直に突出してい
る。As shown in FIG. 6, the terminal fitting 4 is formed by bending a metal plate in advance into an L shape, and the lower part thereof is one wide surface mounting terminal 4a as a board mounting terminal. The upper part is a rod-shaped (pin-shaped) terminal processing terminal 4b branched into two. The surface mounting terminal 4a is bent outward along the bottom surface of the magnetic core mounting terminal block 5, and the branched terminal processing terminal 4b is the bottom surface (bottom portion) of the groove 7 formed on the upper surface of the magnetic core mounting terminal block 5. ) Vertically project from.
【００３４】小径のボビンレスコイル１、大径のボビン
レスコイル２及びＥ型コア３の磁芯取付用端子台５への
組み込みは以下のようにして行う。すなわち、図１のよ
うに、大径のボビンレスコイル２の内側貫通穴に小径の
ボビンレスコイル１を同心状に配し、小径のボビンレス
コイル１の中心の貫通穴に上下よりＥ型コア３の円柱状
部３ｂをそれぞれ挿入し、上下のＥ型コア３を突き合わ
せ一体化した状態で磁芯取付用端子台５の係合溝６に各
Ｅ型コア３のコ字状外殻部３ａを嵌め込む。その際、接
着剤を併用することで一対のＥ型コア３を位置決め状態
で磁芯取付用端子台５へ固定することができる。このと
き、磁芯取付用端子台５とＥ型コア３の底面とを同一レ
ベルとすれば、表面実装タイプのチョークコイルを構成
できる。各コイル１，２の引き出し端部（端末）１ａ，
２ａは必要に応じて高さを揃えるための折り曲げ等を加
えて、前記溝部７より突出している棒状の端末処理端子
４ｂに端部の穴１ｂ，２ｂがはめられる（穴１ｂ，２ｂ
に端末処理端子４ｂが挿通される。）。その後、コイル
端部１ａ，２ａと端末処理端子４ｂとをはんだ付け等で
接続する。なお、必要であれば、端末処理端子４ｂへの
接続後、引き出し端部１ａ，２ａの余分な先端部分を切
除する。The small-diameter bobbinless coil 1, the large-diameter bobbinless coil 2 and the E-shaped core 3 are incorporated into the magnetic core mounting terminal block 5 as follows. That is, as shown in FIG. 1, the small-diameter bobbinless coil 1 is concentrically arranged in the inner through-hole of the large-diameter bobbinless coil 2, and the E-shaped core is vertically inserted into the central through-hole of the small-diameter bobbinless coil 1. 3 column-shaped portions 3b are respectively inserted, and the upper and lower E-shaped cores 3 are abutted and integrated with each other, and the U-shaped outer shell portions 3a of the E-shaped cores 3 are inserted into the engaging grooves 6 of the magnetic core mounting terminal block 5. Fit in. At this time, the pair of E-shaped cores 3 can be fixed to the magnetic core mounting terminal block 5 in a positioned state by using an adhesive together. At this time, if the magnetic core mounting terminal block 5 and the bottom surface of the E-shaped core 3 are at the same level, a surface mounting type choke coil can be constructed. Lead-out ends (terminals) 1a of the coils 1 and 2,
Holes 1b and 2b at the ends of the wire 2a are fitted to the rod-shaped terminal processing terminals 4b protruding from the groove 7 by adding bending or the like to make the heights uniform (holes 1b and 2b).
The terminal processing terminal 4b is inserted through. ). After that, the coil ends 1a and 2a and the terminal processing terminal 4b are connected by soldering or the like. In addition, if necessary, after connecting to the terminal processing terminal 4b, excess tip portions of the lead-out ends 1a and 2a are cut off.
【００３５】この第１実施例によれば、次の通りの効果
を得ることができる。According to the first embodiment, the following effects can be obtained.
【００３６】(1) 小径のボビンレスコイル１及び大径
のボビンレスコイル２は、平角線を用いたボビンレスコ
イルであり、薄形のコイル構造であっても巻線数を多く
することができる。例えば板厚０.１mm、幅２mmの平角
線の断面積は直径０.５mmの丸線（ラウンドワイヤー）
に相当し、銅損を少なくして巻数をかせぐことができ
る。また、ボビンを使用しないため、導体の占積率を上
げることができ、この点でも銅損の低減を図ることがで
きる。(1) The small-diameter bobbinless coil 1 and the large-diameter bobbinless coil 2 are bobbinless coils using a rectangular wire, and the number of windings can be increased even with a thin coil structure. it can. For example, the cross-sectional area of a rectangular wire with a thickness of 0.1 mm and a width of 2 mm is a round wire with a diameter of 0.5 mm (round wire).
The number of turns can be increased by reducing the copper loss. Further, since the bobbin is not used, the space factor of the conductor can be increased, and also in this respect, the copper loss can be reduced.
【００３７】(2) ボビンレスコイル１，２の引き出し
端部１ａ，２ａに穴１ｂ，２ｂが形成されているため、
この穴１ｂ，２ｂに磁芯取付用端子台５の端末処理端子
４ｂを挿通し、はんだ付け等の接続作業を実行できる。
このため、引き出し端部１ａ，２ａの位置ずれ等が発生
せず、ボビンレスコイル１，２と端末処理端子４ｂとの
接続を確実かつ容易に実行できる。(2) Since the bobbinless coils 1 and 2 have holes 1b and 2b formed at the lead-out ends 1a and 2a,
The terminal processing terminal 4b of the magnetic core mounting terminal block 5 can be inserted into the holes 1b and 2b, and connection work such as soldering can be performed.
Therefore, the lead-out ends 1a and 2a are not displaced, and the bobbinless coils 1 and 2 and the terminal processing terminal 4b can be connected reliably and easily.
【００３８】(3) プリント基板への取付端子となる面
装着端子４ａと端末処理端子４ｂとが別々に形成されて
いるため、各コイル１，２の引き出し端部１ａ，２ａの
端末処理が、非常に簡単になり、しかも端末処理時に端
子浮きは発生せず、プリント基板への装着性が良く、装
着の信頼性を確保できる。(3) Since the surface-mounting terminal 4a to be a mounting terminal on the printed circuit board and the terminal processing terminal 4b are formed separately, the terminal processing of the lead-out ends 1a and 2a of the coils 1 and 2 is It is very simple, and terminal floating does not occur at the time of terminal processing, and it is easy to mount on the printed circuit board, and the reliability of mounting can be secured.
【００３９】(4) 磁芯取付用端子台５が磁芯位置決め
手段としての係合溝６を有しているため、磁芯としての
一対のＥ型コア３を容易かつ確実に位置決め固定でき
る。また、コアとして特殊形状のもの（例えば鍔付きの
もの）は必要なく、製造容易な一般的なコアを使用でき
る。(4) Since the magnetic core mounting terminal block 5 has the engaging groove 6 as magnetic core positioning means, the pair of E-shaped cores 3 as magnetic cores can be positioned and fixed easily and reliably. Also, a specially shaped core (for example, one with a collar) is not required as the core, and a general core that is easy to manufacture can be used.
【００４０】(5) 前記端子金具４は、上部の２個に分
岐した端末処理端子４ｂの下部は基板取付端子としての
１個の面装着端子４ａとなっているため、小径のボビン
レスコイル１と大径のボビンレスコイル２とが電気的に
並列に接続されることになり、電流容量の増大を図るこ
とができる。また、端子台５の内側の空間を有効利用す
ることにもなる。(5) In the terminal fitting 4, the terminal processing terminal 4b, which is branched into two pieces at the upper portion, is a surface mounting terminal 4a as a board mounting terminal, so that the bobbinless coil 1 having a small diameter is provided. And the large-diameter bobbinless coil 2 are electrically connected in parallel, and the current capacity can be increased. Further, the space inside the terminal block 5 can be effectively used.
【００４１】なお、第１実施例において、図７のよう
に、小径のボビンレスコイル１及び大径のボビンレスコ
イル２の上下面とＥ型コア３内面との間の絶縁のために
絶縁シート８を挿入してもよい。In the first embodiment, as shown in FIG. 7, an insulating sheet is provided to insulate the upper and lower surfaces of the small-diameter bobbinless coil 1 and the large-diameter bobbinless coil 2 from the inner surface of the E-shaped core 3. 8 may be inserted.
【００４２】図８は第１実施例で磁芯取付用端子台５の
代わりに使用可能な磁芯取付用端子台の変形例であり、
図８の磁芯取付用端子台５Ａは磁芯位置決め手段として
の係合凸部９を有し、該係合凸部９間で第１実施例に示
す一対のＥ型コア３の外殻部３ａを位置決め支持するよ
うになっている。なお、端子金具４は第１実施例と同様
であり、端子台５Ａのその他の部分も第１実施例と同じ
でよい。FIG. 8 shows a modification of the magnetic core mounting terminal block which can be used in place of the magnetic core mounting terminal block 5 in the first embodiment.
The magnetic core mounting terminal block 5A shown in FIG. 8 has engaging protrusions 9 as magnetic core positioning means, and the outer shell portions of the pair of E-shaped cores 3 shown in the first embodiment are provided between the engaging protrusions 9. 3a is positioned and supported. The terminal fitting 4 is the same as in the first embodiment, and the other portions of the terminal block 5A may be the same as in the first embodiment.
【００４３】図９は本発明の第２実施例を示す。この場
合、磁芯取付用端子台５Ｂの高さを磁芯の高さより小さ
くし、磁芯の取付位置を調節することにより、端子台５
Ｂにに一体成形等で固着された端子金具１４の基板取付
端子１４ａを磁芯高さの中間に位置させている。端子金
具１４は、端子台５Ｂの底面に沿って外側に突出した前
記基板取付端子１４ａを有するとともに溝部７の底面位
置から垂直に突出した棒状の端末処理端子１４ｂを有し
ている。同心状に配置された小径のボビンレスコイル１
及び大径のボビンレスコイル２の各引き出し端部１ａ，
２ａの穴１ｂ，２ｂに端末処理端子１４ｂを挿通し、コ
イル１，２及び端末処理端子１４ｂをはんだ付け等で接
続する。その他の構成は、前述の第１実施例と同様であ
る。FIG. 9 shows a second embodiment of the present invention. In this case, the height of the magnetic core mounting terminal block 5B is made smaller than the height of the magnetic core, and the mounting position of the magnetic core is adjusted so that the terminal block 5
The board mounting terminal 14a of the terminal fitting 14 fixed to B by integral molding or the like is located in the middle of the magnetic core height. The terminal fitting 14 has the board mounting terminal 14a protruding outward along the bottom surface of the terminal block 5B and a rod-shaped terminal processing terminal 14b protruding vertically from the bottom position of the groove portion 7. Small diameter bobbinless coil 1 arranged concentrically
And each lead-out end 1a of the large-diameter bobbinless coil 2,
The terminal processing terminal 14b is inserted into the holes 1b and 2b of 2a, and the coils 1 and 2 and the terminal processing terminal 14b are connected by soldering or the like. The other structure is the same as that of the first embodiment.
【００４４】この第２実施例によれば、基板落とし込み
実装タイプのチョークコイルを構成できる。すなわち、
プリント基板４０に磁芯取付用端子台５Ｂの外形に対応
した抜き穴４１を形成しておくことにより、基板取付端
子１４ａをプリント基板４０に装着できる。この第２実
施例では、磁芯取付用端子台５Ｂのプリント基板片面へ
の突出量を半減させることができる。なお、その他の作
用効果は前述の第１実施例と同様である。According to the second embodiment, a choke coil of a board drop mounting type can be constructed. That is,
The board mounting terminal 14 a can be mounted on the printed board 40 by forming the hole 41 corresponding to the outer shape of the magnetic core mounting terminal block 5 B on the printed board 40. In the second embodiment, the amount of protrusion of the magnetic core mounting terminal block 5B on one surface of the printed board can be reduced by half. The other operational effects are the same as those of the first embodiment described above.
【００４５】図１０は本発明の第３実施例であってトラ
ンスを構成した場合を示す。この場合、磁芯取付用端子
台５の端子金具２４は、図１１に示すように、金属板を
予めＬ字状に折り曲げ成形したもので、下部が基板取付
端子としての１個の面装着端子２４ａとなっており、上
部も１個の棒状の端末処理端子２４ｂとなっている。そ
の面装着端子２４ａは、磁芯取付用端子台５の底面に沿
って外側に折り曲げられ、端末処理端子２４ｂは磁芯取
付用端子台５の上面に形成された溝部７の底面（底部）
に垂直に突出している。小径のボビンレスコイル１及び
大径のボビンレスコイル２の引き出し端部（端末）１
ａ，２ａは必要に応じて高さを揃えるための折り曲げ等
を加えて、前記溝部７より突出している棒状の端末処理
端子２４ｂに端部の穴１ｂ，２ｂをはめ、（穴１ｂ，２
ｂに端末処理端子２４ｂを挿通し）、はんだ付け等で接
続する。なお、その他の構成は前述の第１実施例と同様
である。FIG. 10 shows a third embodiment of the present invention in which a transformer is constructed. In this case, as shown in FIG. 11, the terminal fitting 24 of the magnetic core mounting terminal block 5 is formed by bending a metal plate in advance into an L shape, and the lower part thereof is one surface mounting terminal as a board mounting terminal. 24a, and the upper part also has one rod-shaped terminal processing terminal 24b. The surface mounting terminal 24a is bent outward along the bottom surface of the magnetic core mounting terminal block 5, and the terminal processing terminal 24b is the bottom surface (bottom portion) of the groove 7 formed on the upper surface of the magnetic core mounting terminal block 5.
It projects vertically to. Lead-out end (terminal) 1 of small-diameter bobbinless coil 1 and large-diameter bobbinless coil 2
a and 2a are bent to make the heights equal to each other as necessary, and the end holes 1b and 2b are fitted to the rod-shaped terminal processing terminals 24b protruding from the groove portion 7 (holes 1b and 2a.
Insert the terminal processing terminal 24b into b), and connect by soldering or the like. The rest of the configuration is similar to that of the first embodiment described above.
【００４６】この第３実施例の場合、小径のボビンレス
コイル１と大径のボビンレスコイル２とがそれぞれ独立
した端子金具２４に接続されているから、２個の巻線を
有する薄形、大電流容量のトランスを構成できる。な
お、その他の作用効果は前述の第１実施例と同様であ
る。In the case of the third embodiment, since the small-diameter bobbinless coil 1 and the large-diameter bobbinless coil 2 are connected to the independent terminal fittings 24, a thin type having two windings, A transformer with a large current capacity can be configured. The other operational effects are the same as those of the first embodiment described above.
【００４７】図１２は本発明の第４実施例であってチョ
ークコイルを構成した場合を示す。この図において、か
なり幅広の平角線でその幅広平面が巻回軸に対してほぼ
直角になるように円環状（スパイラル状）に巻回してな
るボビンレスコイル１１と、一対のＥ型コア３から成る
磁芯と、複数個（例えば４個）の幅広端子金具３４を一
体に有する磁芯取付用端子台１５とによりチョークコイ
ルが構成されている。FIG. 12 shows a fourth embodiment of the present invention in which a choke coil is constructed. In this figure, a pair of E-shaped cores 3 and a bobbinless coil 11 formed by winding a substantially wide rectangular wire in an annular shape (spiral shape) so that the wide plane is substantially perpendicular to the winding axis are provided. The magnetic core and the magnetic core mounting terminal block 15 integrally including a plurality of (for example, four) wide terminal fittings 34 form a choke coil.
【００４８】前記磁芯取付用端子台１５は、方形枠状で
あって複数個の幅広端子金具３４を持つように絶縁樹脂
の一体成形で構成され、相互に対向する内側側面に一対
のＥ型コア３のコ字状外殻部３ａに係合する磁芯位置決
め手段としての係合溝６を有している。前記幅広端子金
具３４は、図１３に示すように、金属板を予めＬ字状に
折り曲げ成形したもので、下部が基板取付端子としての
１個の幅広の面装着端子３４ａとなっており、上部は２
個の棒状の端末処理端子３４ｂとなっている。その面装
着端子３４ａは、磁芯取付用端子台５の底面に沿って外
側に折り曲げられ、端末処理端子３４ｂは磁芯取付用端
子台１５の上面に形成された溝部１７の底面（底部）に
垂直に突出している。The magnetic core mounting terminal block 15 has a rectangular frame shape and is formed by integral molding of insulating resin so as to have a plurality of wide terminal fittings 34, and a pair of E-shaped inner side surfaces facing each other. It has an engaging groove 6 as a magnetic core positioning means for engaging with the U-shaped outer shell portion 3a of the core 3. As shown in FIG. 13, the wide terminal metal fitting 34 is formed by bending a metal plate into an L shape in advance, and the lower portion thereof is one wide surface mounting terminal 34a as a board mounting terminal. Is 2
This is a bar-shaped terminal processing terminal 34b. The surface mounting terminal 34a is bent outward along the bottom surface of the magnetic core mounting terminal block 5, and the terminal processing terminal 34b is formed on the bottom surface (bottom portion) of the groove portion 17 formed on the upper surface of the magnetic core mounting terminal block 15. It projects vertically.
【００４９】前記ボビンレスコイル１１の引き出し端部
１１ａには端子金具３４が有する２個の棒状の端末処理
端子３４ｂに対応した２個の穴１１ｂが形成されてい
る。Two holes 11b corresponding to the two rod-shaped terminal processing terminals 34b of the terminal fitting 34 are formed in the lead-out end 11a of the bobbinless coil 11.
【００５０】幅広のボビンレスコイル１１の磁芯取付用
端子台１５への組み込みは以下のようにして行う。すな
わち、ボビンレスコイル１１の中心の貫通穴に上下より
Ｅ型コア３の円柱状部をそれぞれ挿入し、上下のＥ型コ
ア３を一体化した状態で磁芯取付用端子台１５の係合溝
６に各Ｅ型コア３のコ字状外殻部３ａを嵌め込む。その
際、接着剤を併用することで一対のＥ型コア３を位置決
め状態で磁芯取付用端子台１５へ固定することができ
る。このとき、磁芯取付用端子台１５とＥ型コア３の底
面とを同一レベルとすれば、表面実装タイプのチョーク
コイルを構成できる。各コイル１１の引き出し端部（端
末）１１ａは必要に応じて高さを揃えるための折り曲げ
等を加えて、前記溝部１７より突出している棒状の端末
処理端子３４ｂに端部の穴１１ｂをはめ、（穴１１ｂに
端末処理端子３４ｂを挿通し）、はんだ付け等で接続す
る。The wide bobbinless coil 11 is incorporated in the magnetic core mounting terminal block 15 as follows. That is, the columnar portions of the E-shaped core 3 are inserted into the through hole at the center of the bobbinless coil 11 from above and below, respectively, and the upper and lower E-shaped cores 3 are integrated with each other to engage the engaging groove of the magnetic core mounting terminal block 15. The U-shaped outer shell portion 3a of each E-shaped core 3 is fitted into the base plate 6. At this time, the pair of E-shaped cores 3 can be fixed to the magnetic core mounting terminal block 15 in a positioned state by using an adhesive together. At this time, if the magnetic core mounting terminal block 15 and the bottom surface of the E-shaped core 3 are at the same level, a surface mount type choke coil can be constructed. The lead-out end portion (terminal) 11a of each coil 11 is bent, if necessary, for equalizing the height, and the hole 11b at the end portion is fitted into the rod-shaped terminal processing terminal 34b protruding from the groove portion 17, (Insert the terminal processing terminal 34b into the hole 11b) and connect by soldering or the like.
【００５１】この第４実施例によれば、かなり幅広の平
角線を巻回したボビンレスコイル１１を磁芯に装着する
ことにより、電流容量の増大を図ることができる。ま
た、１個の端子金具３４に対して複数個の棒状の端末処
理端子３４ｂを形成したことで、コイル引き出し端部１
１ａと端子金具３４との接続箇所を増やして接続部分の
抵抗を小さくすることができる。なお、その他の構成、
作用効果は前述の第１実施例と同様である。According to the fourth embodiment, the current capacity can be increased by mounting the bobbinless coil 11 wound with a fairly wide rectangular wire on the magnetic core. Further, by forming a plurality of rod-shaped terminal treatment terminals 34b for one terminal fitting 34, the coil lead-out end portion 1
It is possible to reduce the resistance of the connection portion by increasing the number of connection points between 1a and the terminal fitting 34. In addition, other configurations,
The function and effect are similar to those of the first embodiment described above.
【００５２】図１４及び図１５は本発明の第５実施例で
あって、２個のボビンレスコイルを用いて薄形、大電流
容量のトランスを構成した場合であって、磁芯取付用端
子台５の両側に各コイルの引き出し端部が引き出される
ようにしたものを示す。すなわち、小径のボビンレスコ
イル１の引き出し端部１ａは磁芯取付用端子台５の右側
の端子金具２４の端末処理端子２４ｂに、大径のボビン
レスコイル２の引き出し端部２ａは磁芯取付用端子台５
の左側の端子金具２４の端末処理端子２４ｂに接続され
ることになり、各引き出し端部１ａ，２ａの穴１ｂ，２
ｂに端末処理端子２４ｂを挿通した後、はんだ付け等で
引き出し端部１ａ，２ａと端末処理端子２４ｂとの接続
を行う。なお、その他の構成は前述の第３実施例と同様
である。FIG. 14 and FIG. 15 show a fifth embodiment of the present invention, in which a thin transformer having a large current capacity is constructed by using two bobbinless coils. Shown on both sides of the table 5 are the drawn-out ends of the respective coils. That is, the lead-out end 1a of the small diameter bobbinless coil 1 is attached to the terminal processing terminal 24b of the terminal fitting 24 on the right side of the magnetic core mounting terminal block 5, and the lead-out end 2a of the large diameter bobbinless coil 2 is attached to the magnetic core. Terminal block 5
Will be connected to the terminal processing terminal 24b of the terminal fitting 24 on the left side of each of the holes 1b, 2 of the lead-out end portions 1a, 2a.
After inserting the terminal processing terminal 24b into b, the lead-out ends 1a and 2a and the terminal processing terminal 24b are connected by soldering or the like. The rest of the configuration is similar to that of the third embodiment described above.
【００５３】この第５実施例によれば、複数のボビンレ
スコイルを有する薄形、大電流容量のトランスを構成す
ることができ、例えば１次側ボビンレスコイル１は磁芯
取付用端子台５の右側に導出し、２次側ボビンレスコイ
ル２は左側に導出でき、１次、２次間を絶縁隔離した
り、配線する上で好都合である。According to the fifth embodiment, it is possible to construct a thin type, large current capacity transformer having a plurality of bobbinless coils. For example, the primary bobbinless coil 1 is a magnetic core mounting terminal block 5. Can be led to the right side and the secondary side bobbinless coil 2 can be led to the left side, which is convenient for insulating and isolating the primary and secondary sides and wiring.
【００５４】図１６は本発明の第６実施例であって、２
個の同径のボビンレスコイルを用いて薄形、大電流容量
のトランスを構成した場合であって、磁芯取付用端子台
１５の両側に各コイルの引き出し端部が引き出されるよ
うにしたものを示す。このトランスでは、図１７に示す
ように、かなり幅広の平角線でその幅広平面が巻回軸に
対してほぼ直角になるように円環状（スパイラル状）に
巻回してなる同一外径のボビンレスコイル２１，２２を
上下方向に重ねて一対のＥ型コア３を突き合わせ一体化
した磁芯の内側に配置する。そして、ボビンレスコイル
２１の引き出し端部２１ａに必要に応じて高さを揃える
ための折り曲げ等を加えて磁芯取付用端子台１５の左側
の溝部１７より導出し、該溝部１７より垂直に突出して
いる複数の棒状端末処理端子３４ｂにコイル引き出し端
部２１ａの複数の穴２１ｂをはめ、（穴２１ｂに端末処
理端子３４ｂを挿通し）、はんだ付け等で接続する。ま
た、ボビンレスコイル２２の引き出し端部２２ａに必要
に応じて高さを揃えるための折り曲げ等を加えて右側の
溝部１７より導出し、複数の棒状端末処理端子３４ｂに
コイル引き出し端部２２ａの複数の穴２２ｂをはめ、
（穴２２ｂに端末処理端子３４ｂを挿通し）、はんだ付
け等で接続する。なお、その他の構成は、前述の第４実
施例と同様である。FIG. 16 shows a sixth embodiment of the present invention, in which 2
A thin and large-current-capacity transformer is configured by using bobbinless coils each having the same diameter, and the lead-out end portions of the respective coils are drawn out to both sides of the magnetic core mounting terminal block 15. Indicates. In this transformer, as shown in FIG. 17, a bobbinless with a substantially wide rectangular wire wound in an annular shape (spiral shape) such that the wide flat surface is substantially perpendicular to the winding axis is used. The coils 21 and 22 are vertically stacked and arranged inside a magnetic core in which a pair of E-shaped cores 3 are butted and integrated. Then, the lead-out end 21a of the bobbinless coil 21 is bent from the left end 17 of the magnetic core mounting terminal block 15 by bending, for example, to make the height uniform as necessary, and protrudes vertically from the groove 17. A plurality of holes 21b of the coil lead-out end portion 21a are fitted into the plurality of rod-shaped terminal processing terminals 34b, which are inserted (the terminal processing terminals 34b are inserted into the holes 21b), and soldering or the like is performed. Further, the lead-out end 22a of the bobbinless coil 22 is led out from the groove 17 on the right side by adding a bending or the like for equalizing the height as necessary, and the plurality of rod-like terminal processing terminals 34b are provided with a plurality of coil lead-out ends 22a. Insert the hole 22b of
(Insert the terminal processing terminal 34b into the hole 22b) and connect by soldering or the like. The rest of the configuration is similar to that of the above-described fourth embodiment.
【００５５】この第６実施例によれば、複数のボビンレ
スコイルを有する薄形、大電流容量のトランスを構成す
ることができ、例えば１次側ボビンレスコイル２１は磁
芯取付用端子台１５の左側に導出し、２次側ボビンレス
コイル２２は右側に導出でき、１次、２次間を絶縁隔離
したり配線する上で好都合である。According to the sixth embodiment, it is possible to construct a thin transformer having a large current capacity, which has a plurality of bobbinless coils. For example, the primary bobbinless coil 21 is the magnetic core mounting terminal block 15. The secondary side bobbinless coil 22 can be led out to the right side, which is convenient for insulating and isolating the primary and secondary sides and wiring.
【００５６】図１８は本発明の第７実施例を示す。この
場合、ボビンレスコイル１，２は引き出し端子部１ａ，
２ａに切欠き１ｃ，２ｃを形成したものであり、端子金
具４４は、図１９に示すように、金属板を予めコ字状に
折り曲げると同時に棒状部分を成形したもので、下部が
基板取付端子としての面装着端子４４ａとなっており、
上部の端末処理端子は各ボビンレスコイル１，２の引き
出し端部の切欠き１ｃ，２ｃに挿通可能な棒状端子部４
４ｂと平板状端子部４４ｃとからなっている。そして、
磁芯取付用端子台５に取り付けられた端子金具４４の面
装着端子４４ａは、磁芯取付用端子台５の底面に沿って
外側に折り曲げられ、棒状端子部４４ｂは磁芯取付用端
子台５の上面に形成された溝部７の底面（底部）にから
垂直に突出し、平板状端子部４４ｃは溝部７の底面に沿
って外側に折り曲げられている。FIG. 18 shows a seventh embodiment of the present invention. In this case, the bobbinless coils 1 and 2 are connected to the lead terminal portion 1a,
The notches 1c and 2c are formed in 2a, and the terminal fitting 44 is formed by bending a metal plate in a U shape in advance and forming a rod-shaped portion at the same time as shown in FIG. It is a surface mounting terminal 44a as
The upper terminal processing terminal is a rod-shaped terminal portion 4 that can be inserted into the notches 1c and 2c of the lead-out end portions of the bobbinless coils 1 and 2.
4b and a flat terminal portion 44c. And
The surface mounting terminal 44a of the terminal fitting 44 attached to the magnetic core mounting terminal block 5 is bent outward along the bottom surface of the magnetic core mounting terminal block 5, and the rod-shaped terminal portion 44b is the magnetic core mounting terminal block 5. The plate-shaped terminal portion 44 c is bent vertically outward from the bottom surface (bottom portion) of the groove portion 7 formed on the upper surface of the groove portion 7, and is bent outward along the bottom surface of the groove portion 7.
【００５７】各コイル１，２の引き出し端部（端末）１
ａ，２ａと端子金具４４との接続は、前記溝部７より突
出している棒状端子部４４ｂに端部の切欠き１ｃ，２ｃ
を嵌める（切欠き１ｃ，２ｃに棒状端子部４４ｂを挿通
する）とともに、引き出し端部１ａ，２ａを平板状端子
部４４ｃ上に重ね合わせ、その後、コイル端部１ａ，２
ａと棒状端子部４４ｂ及び平板状端子部４４ｃとをはん
だ付け等で接続する。なお、その他の構成は前述の第５
実施例と同様である。Lead-out ends (terminals) 1 of the coils 1 and 2
The connection between a and 2a and the terminal fitting 44 is made by cutting the rod-shaped terminal portion 44b protruding from the groove portion 7 with the notches 1c and 2c at the ends.
(The rod-shaped terminal portion 44b is inserted into the notches 1c and 2c), the lead-out end portions 1a and 2a are superposed on the flat plate-shaped terminal portion 44c, and then the coil end portions 1a and 2
a is connected to the rod-shaped terminal portion 44b and the plate-shaped terminal portion 44c by soldering or the like. Note that the other configurations are the same as those of the above-mentioned fifth.
It is similar to the embodiment.
【００５８】この第７実施例によれば、引き出し端部１
ａ，２ａの切欠き１ｃ，２ｃに棒状端子部４４ｂを挿通
して接続すると同時に、前記平板状端子部４４ｃを前記
引き出し端部１ａ，２ａに面接触状態で接続でき、接続
面積を増加させ得る利点がある。また、平角線端部の切
欠き１ｃ，２ｃは形成加工が容易な利点がある。その他
の作用効果は前述の第５実施例と同様である。According to this seventh embodiment, the drawer end 1
The bar-shaped terminal portion 44b can be inserted into and connected to the notches 1c and 2c of a and 2a, and at the same time, the plate-shaped terminal portion 44c can be connected to the lead-out end portions 1a and 2a in a surface contact state, thereby increasing the connection area. There are advantages. Further, the notches 1c and 2c at the ends of the rectangular wire have an advantage that the forming process is easy. Other functions and effects are similar to those of the fifth embodiment described above.
【００５９】なお、第３、第４、第５、第６及び第７実
施例においても、第２実施例と同様の端子金具構造を採
用することにより、基板落とし込み実装タイプのインダ
クタンス素子を構成できる。In the third, fourth, fifth, sixth and seventh embodiments as well, by adopting the terminal fitting structure similar to that of the second embodiment, the board drop mounting type inductance element can be constructed. .
【００６０】また、第２、第３、第４、第５、第６及び
第７実施例においても、図７のように、コイルと磁芯内
面との絶縁のために絶縁シートを配置する構造を採用し
ても良い。さらに、コイルが複数ある場合、コイル間に
も絶縁シートを配置する構造とすることもできる。Also in the second, third, fourth, fifth, sixth and seventh embodiments, as shown in FIG. 7, an insulating sheet is arranged for insulating the coil from the inner surface of the magnetic core. May be adopted. Further, when there are a plurality of coils, the insulating sheet may be arranged between the coils.
【００６１】また、棒状端子部と平板状端子部とを端末
処理端子として具備する第７実施例の端子金具と同様の
構成を、第１、第２、第４、第５又は第６実施例の端子
金具に適用することも可能であり、第７実施例に示した
コイル端部に穴の代わりに切欠きを形成する構成を第１
乃至第６実施例にも適用できる。A structure similar to that of the terminal fitting of the seventh embodiment, which includes the rod-shaped terminal portion and the plate-shaped terminal portion as terminal processing terminals, is used in the first, second, fourth, fifth or sixth embodiment. It is also possible to apply the present invention to a terminal fitting of No. 1, and the first embodiment has a configuration in which a notch is formed instead of a hole at the coil end portion shown in the seventh embodiment.
It is also applicable to the sixth embodiment.
【００６２】さらに、各実施例の端子金具は面装着端子
を有するものであるが、プリント基板を貫通するピン端
子を有するものであっても差し支えないFurther, although the terminal fittings of each embodiment have surface mounting terminals, they may have pin terminals penetrating the printed circuit board.
【００６３】磁芯としては、フェライト、圧粉磁芯（圧
粉鉄心）等のＥ型コア３同士を突き合わせたものを例示
したが、コ字状外殻部３ａ及び円柱状部３ｂの長い１個
のＥ型コアと平板コアとの組み合わせ構造としたり、磁
芯取付用端子台に係合可能な外殻部及び円柱状部を有す
るポット型コア（外殻部の一部を切り欠いたもの）同士
の突き合わせ構造、ポット型コアと平板コアとの組み合
わせ構造等を用いても良い。As the magnetic core, the one in which E-shaped cores 3 such as ferrite and dust magnetic core (compacted iron core) are butted against each other has been exemplified, but a long U-shaped outer shell portion 3a and a cylindrical portion 3b are used. A pot-type core (a part of the outer shell is cut away) having a combined structure of a single E-shaped core and a flat plate core, or having an outer shell and a columnar portion that can be engaged with a magnetic core mounting terminal block. ) A butt-joining structure, a combined structure of a pot type core and a flat plate core, and the like may be used.
【００６４】また、ボビンレスコイルとして線材を円環
状に巻回したものを例示したが、楕円環状乃至長円環
状、さらには矩形筒状に線材を巻回したものを用いても
よい。また、ボビンレスコイルの中心貫通穴の形状に合
わせて磁芯の柱状部の断面形状も楕円状乃至長円状さら
には矩形状に設定できる。Further, as the bobbin-less coil, the wire wound in an annular shape is exemplified, but the wire wound in an elliptic ring, an elliptic ring, or a rectangular tube may be used. Further, the cross-sectional shape of the columnar portion of the magnetic core can be set to an elliptical shape, an oval shape, or a rectangular shape in accordance with the shape of the center through hole of the bobbinless coil.
【００６５】以上本発明の実施例について説明してきた
が、本発明はこれに限定されることなく請求項の記載の
範囲内において各種の変形、変更が可能なことは当業者
には自明であろう。Although the embodiment of the present invention has been described above, it is obvious to those skilled in the art that the present invention is not limited to this and various modifications and changes can be made within the scope of the claims. Let's do it.
【００６６】[0066]
【発明の効果】以上説明したように、本発明のインダク
タンス素子によれば、基板取付端子と端末処理端子とを
有するとともに磁芯位置決め手段を有する磁芯取付用端
子台と、該磁芯位置決め手段で前記磁芯取付用端子台の
内側に位置決め固定される磁芯と、該磁芯の柱状部の周
囲に設けられていて平角線を環状乃至矩形筒状に巻回し
てなる少なくとも一つのコイルとを備え、前記コイルの
引き出し端部に形成された穴又は切欠きに前記端末処理
端子を挿通して接続した構成としたので、次の通りの効
果を得ることができる。As described above, according to the inductance element of the present invention, the magnetic core mounting terminal block having the substrate mounting terminal and the terminal processing terminal and the magnetic core positioning means, and the magnetic core positioning means. A magnetic core that is positioned and fixed inside the magnetic core mounting terminal block, and at least one coil that is provided around the columnar portion of the magnetic core and is formed by winding a rectangular wire into an annular or rectangular tubular shape. Since the terminal processing terminal is inserted into and connected to the hole or notch formed at the lead-out end of the coil, the following effects can be obtained.
【００６７】(1) 前記コイルをボビンレス構造とする
ことができ、ボビンを使用しない分だけ導体の占積率を
向上させ、銅損の低減、発熱の低減、電流容量の増大を
図ることができ、併せて薄形化を図ることができる。ま
た、平角線は薄形であっても断面積を大きく設定でき、
薄形のコイル構造としても巻き数をかせぐことができ、
この点でも小形、薄形化及び電流容量の増大を図ること
ができる。(1) Since the coil can have a bobbinless structure, the space factor of the conductor can be improved by not using the bobbin, and copper loss can be reduced, heat generation can be reduced, and current capacity can be increased. In addition, it is possible to reduce the thickness. Also, even if the rectangular wire is thin, you can set a large cross-sectional area,
The number of turns can be increased even with a thin coil structure,
Also in this respect, it is possible to reduce the size and thickness and increase the current capacity.
【００６８】(2) 磁芯取付用端子台は基板取付端子と
端末処理端子とを有し、コイル端末、すなわち平角線の
引き出し端部には前記端末処理端子に対応した穴又は切
欠きが形成されているので、各引き出し端部の穴又は切
欠きに端末処理端子を挿通し（さし込み）、はんだ付け
することでコイル端末と端末処理端子とを確実かつ容易
に接続することができ、コイル端末の位置ずれ等を発生
は無い。(2) The magnetic core mounting terminal block has a substrate mounting terminal and a terminal processing terminal, and a hole or a notch corresponding to the terminal processing terminal is formed at the coil end, that is, the end portion of the rectangular wire. Therefore, by inserting (inserting) the terminal treatment terminal into the hole or notch of each drawer end, and by soldering, the coil terminal and the terminal treatment terminal can be reliably and easily connected, There is no displacement of the coil terminals.
【００６９】(3) 前記磁芯取付用端子台は磁芯位置決
め手段を有しており、磁芯の磁芯取付用端子台への位置
決め固定を容易に行うことができる。また、磁芯は特殊
形状のもの（例えば鍔付きのもの等）を必要とせず、一
般的な磁芯形状に対応できる。(3) The magnetic core mounting terminal block has magnetic core positioning means, and the magnetic core can be easily positioned and fixed to the magnetic core mounting terminal block. Further, the magnetic core does not need to have a special shape (for example, one with a collar, etc.), and can correspond to a general magnetic core shape.
【００７０】(4) 磁芯取付用端子台に固定された端子
金具は基板取付端子と端末処理端子とを有しており、基
板取付端子と端末処理端子とが分離されているため、コ
イル端末処理時に基板取付端子に浮き上がりが発生する
ことはなく、プリント基板への装着性が良く、信頼性の
高いインダクタンス素子を作製できる。(4) Since the terminal fitting fixed to the magnetic core mounting terminal block has the board mounting terminal and the terminal processing terminal, and the board mounting terminal and the terminal processing terminal are separated, the coil terminal It is possible to fabricate an inductance element that does not float on the board mounting terminal during processing, has good mountability on a printed board, and is highly reliable.
【００７１】また、本発明のインダクタンス素子用コイ
ルは、平角線の幅広平面が巻回軸に対してほぼ直角とな
るように該平角線を環状乃至矩形筒状に巻回し、引き出
し端部に穴又は切欠きを形成しており、薄形のコイル構
造としても巻き数をかせぐことができ、小形、薄形化及
び電流容量の増大を図ることができる。また、引き出し
端部に穴又は切欠きを形成してあり、この穴又は切欠き
を利用して端子側への接続を確実かつ容易に実行でき
る。Further, in the coil for an inductance element of the present invention, the rectangular wire is wound into an annular or rectangular tubular shape so that the wide plane of the rectangular wire is substantially perpendicular to the winding axis, and a hole is formed in the lead end. Alternatively, the notch is formed so that the number of turns can be increased even with a thin coil structure, and it is possible to reduce the size and thickness and increase the current capacity. Further, a hole or a notch is formed in the lead-out end portion, and the connection to the terminal side can be surely and easily executed by utilizing the hole or the notch.
【図１】本発明に係るインダクタンス素子の第１実施例
であってチョークコイルを構成した場合を示す分解斜視
図である。FIG. 1 is an exploded perspective view showing a first embodiment of an inductance element according to the present invention and forming a choke coil.
【図２】同斜視図である。FIG. 2 is a perspective view of the same.
【図３】同平面図である。FIG. 3 is a plan view of the same.
【図４】同正断面図である。FIG. 4 is a front sectional view of the same.
【図５】第１実施例で用いる小径及び大径のボビンレス
コイルの組み合わせ構造を示す斜視図である。FIG. 5 is a perspective view showing a combined structure of small-diameter and large-diameter bobbinless coils used in the first embodiment.
【図６】第１実施例で用いる端子金具を示す斜視図であ
る。FIG. 6 is a perspective view showing a terminal fitting used in the first embodiment.
【図７】第１実施例等で採用可能なボビンレスコイルの
絶縁構造を示す分解斜視図である。FIG. 7 is an exploded perspective view showing an insulating structure of a bobbinless coil that can be used in the first embodiment and the like.
【図８】第１実施例で用いることのできる磁芯取付用端
子台の変形例を示す斜視図である。FIG. 8 is a perspective view showing a modification of the magnetic core mounting terminal block that can be used in the first embodiment.
【図９】本発明の第２実施例を示す正断面図である。FIG. 9 is a front sectional view showing a second embodiment of the present invention.
【図１０】本発明の第３実施例であってトランスを示す
斜視図である。FIG. 10 is a perspective view showing a transformer according to a third embodiment of the present invention.
【図１１】第３実施例で用いる端子金具を示す斜視図で
ある。FIG. 11 is a perspective view showing a terminal fitting used in the third embodiment.
【図１２】本発明の第４実施例であってチョークコイル
を示す斜視図である。FIG. 12 is a perspective view showing a choke coil according to a fourth embodiment of the present invention.
【図１３】第４実施例で用いる端子金具を示す斜視図で
ある。FIG. 13 is a perspective view showing a terminal fitting used in the fourth embodiment.
【図１４】本発明の第５実施例であってトランスを示す
分解斜視図である。FIG. 14 is an exploded perspective view showing a transformer according to a fifth embodiment of the present invention.
【図１５】同斜視図である。FIG. 15 is a perspective view of the same.
【図１６】本発明の第６実施例であってトランスを示す
斜視図である。FIG. 16 is a perspective view showing a transformer according to a sixth embodiment of the present invention.
【図１７】第６実施例で用いるコイル構造を示す斜視図
である。FIG. 17 is a perspective view showing a coil structure used in a sixth embodiment.
【図１８】本発明の第７実施例であってトランスを示す
斜視図である。FIG. 18 is a perspective view showing a transformer according to a seventh embodiment of the present invention.
【図１９】第７実施例で用いる端子金具を示す斜視図で
ある。FIG. 19 is a perspective view showing a terminal fitting used in the seventh embodiment.
１，２，１１，２１，２２ ボビンレスコイル １ａ，２ａ，１１ａ，２１ａ，２２ａ 引き出し端部 １ｂ，２ｂ，１１ｂ，２１ｂ，２２ｂ 穴 １ｃ，２ｃ 切欠き ３ Ｅ型コア ４，１４，２４，３４，４４ 端子金具 ４ａ，２４ａ，３４ａ，４４ａ 面装着端子 １４ａ 基板取付端子 ４ｂ，１４ｂ，２４ｂ，３４ｂ 端末処理端子 ５，５Ａ，５Ｂ，１５ 磁芯取付用端子台 ６ 係合溝 ７，１７ 溝部 ８ 絶縁シート ９ 係合凸部 ４０ プリント基板 ４１ 抜き穴 ４４ｂ 棒状端子部 ４４ｃ 平板状端子部 1, 2, 11, 12, 22 Bobbinless coil 1a, 2a, 11a, 21a, 22a Lead-out end 1b, 2b, 11b, 21b, 22b Hole 1c, 2c Notch 3 E-type core 4, 14, 24, 34 , 44 Terminal fittings 4a, 24a, 34a, 44a Surface mounting terminal 14a Substrate mounting terminal 4b, 14b, 24b, 34b Terminal processing terminal 5, 5A, 5B, 15 Magnetic core mounting terminal block 6 Engaging groove 7, 17 Groove portion 8 Insulation sheet 9 Engagement protrusion 40 Printed circuit board 41 Hole 44b Rod-shaped terminal 44c Plate-shaped terminal
Claims (5)
とともに磁芯位置決め手段を有する磁芯取付用端子台
と、該磁芯位置決め手段で前記磁芯取付用端子台の内側
に位置決め固定される磁芯と、該磁芯の柱状部の周囲に
設けられていて平角線を環状乃至矩形筒状に巻回してな
る少なくとも一つのコイルとを備え、前記コイルの引き
出し端部に形成された穴又は切欠きに前記端末処理端子
を挿通して接続したことを特徴とするインダクタンス素
子。1. A magnetic core mounting terminal block having a substrate mounting terminal, a terminal processing terminal and a magnetic core positioning means, and the magnetic core positioning means positions and fixes the magnetic core mounting terminal block inside the magnetic core mounting terminal block. A magnetic core and at least one coil that is provided around a columnar portion of the magnetic core and is formed by winding a rectangular wire into an annular or rectangular tubular shape; and a hole formed at the lead-out end of the coil, or An inductance element, wherein the terminal processing terminal is inserted and connected to a notch.
回軸に対してほぼ直角となるように巻回したものである
請求項１記載のインダクタンス素子。2. The inductance element according to claim 1, wherein the coil is wound such that a wide plane of the rectangular wire is substantially perpendicular to a winding axis.
め手段で位置決めされる外殻部とを有するものである請
求項１又は２記載のインダクタンス素子。3. The inductance element according to claim 1, wherein the magnetic core has the columnar portion and an outer shell portion positioned by the magnetic core positioning means.
し端部の穴又は切欠きに挿通される棒状端子部と平板状
端子部とを有している請求項１，２又は３記載のインダ
クタンス素子。4. The inductance element according to claim 1, wherein the terminal processing terminal has a rod-shaped terminal portion and a plate-shaped terminal portion that are inserted into a hole or a notch in a lead-out end portion of the coil. .
直角となるように該平角線を環状乃至矩形筒状に巻回
し、引き出し端部に穴又は切欠きを形成したことを特徴
とするインダクタンス素子用コイル。5. The flat wire is wound in an annular or rectangular tubular shape so that the wide flat surface of the flat wire is substantially perpendicular to the winding axis, and a hole or a notch is formed at the leading end. Inductance element coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6056808A JPH07245217A (en) | 1994-03-03 | 1994-03-03 | Inductance element and coil for it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6056808A JPH07245217A (en) | 1994-03-03 | 1994-03-03 | Inductance element and coil for it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07245217A true JPH07245217A (en) | 1995-09-19 |
Family
ID=13037695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6056808A Pending JPH07245217A (en) | 1994-03-03 | 1994-03-03 | Inductance element and coil for it |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07245217A (en) |
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| JP2000036416A (en) * | 1998-07-21 | 2000-02-02 | Tdk Corp | Coil part |
| KR20000076821A (en) * | 1999-03-12 | 2000-12-26 | 무라타 야스타카 | Coil and Surface-Mounting-Type Coil Component |
| US6294974B1 (en) | 1998-01-23 | 2001-09-25 | Sumitomo Wiring Systems, Ltd. | Ignition coil for internal combustion engine, and method of manufacturing an ignition coil |
| JP2003163123A (en) * | 2001-11-27 | 2003-06-06 | Matsushita Electric Works Ltd | Transformer for power supply |
| US6617948B2 (en) | 1998-02-27 | 2003-09-09 | Tdk Corporation | Pot-core components for planar mounting and method of manufacturing the same |
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| JP2010050153A (en) * | 2008-08-19 | 2010-03-04 | Tdk Corp | Coil component |
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| JP2013219093A (en) * | 2012-04-05 | 2013-10-24 | Mitsubishi Electric Corp | Circuit board |
| JP2013219396A (en) * | 2013-07-24 | 2013-10-24 | Mitsubishi Electric Corp | Circuit board |
| JP2013219395A (en) * | 2013-07-24 | 2013-10-24 | Mitsubishi Electric Corp | Circuit board |
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1994
- 1994-03-03 JP JP6056808A patent/JPH07245217A/en active Pending
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| KR20000076821A (en) * | 1999-03-12 | 2000-12-26 | 무라타 야스타카 | Coil and Surface-Mounting-Type Coil Component |
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| JP2003163123A (en) * | 2001-11-27 | 2003-06-06 | Matsushita Electric Works Ltd | Transformer for power supply |
| JP2008205210A (en) * | 2007-02-20 | 2008-09-04 | Densei Lambda Kk | Transformer |
| JP2010050153A (en) * | 2008-08-19 | 2010-03-04 | Tdk Corp | Coil component |
| JP2012104724A (en) * | 2010-11-12 | 2012-05-31 | Panasonic Corp | Inductor component |
| US9129734B2 (en) | 2012-02-01 | 2015-09-08 | Delta Electronics, Inc. | Magnetic module and base thereof |
| US9378885B2 (en) | 2012-03-27 | 2016-06-28 | Pulse Electronics, Inc. | Flat coil windings, and inductive devices and electronics assemblies that utilize flat coil windings |
| JP2013219093A (en) * | 2012-04-05 | 2013-10-24 | Mitsubishi Electric Corp | Circuit board |
| JP2019071454A (en) * | 2013-01-25 | 2019-05-09 | ヴィシェイ デール エレクトロニクス エルエルシー | Low-profile high-current complex transformer |
| JP2021064808A (en) * | 2013-01-25 | 2021-04-22 | ヴィシェイ デール エレクトロニクス エルエルシー | Low profile high current composite transformer |
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| JP2015050235A (en) * | 2013-08-30 | 2015-03-16 | Fdk株式会社 | Coil component |
| EP3453036A4 (en) * | 2016-05-06 | 2020-01-15 | Vishay Dale Electronics, LLC | Nested flat wound coils forming windings for transformers and inductors |
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| CN108417935A (en) * | 2018-04-26 | 2018-08-17 | 青岛云路新能源科技有限公司 | Flat filter |
| US11948724B2 (en) | 2021-06-18 | 2024-04-02 | Vishay Dale Electronics, Llc | Method for making a multi-thickness electro-magnetic device |
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