JP3246431B2 - Transformer winding parts - Google Patents
Transformer winding partsInfo
- Publication number
- JP3246431B2 JP3246431B2 JP02326198A JP2326198A JP3246431B2 JP 3246431 B2 JP3246431 B2 JP 3246431B2 JP 02326198 A JP02326198 A JP 02326198A JP 2326198 A JP2326198 A JP 2326198A JP 3246431 B2 JP3246431 B2 JP 3246431B2
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- drum
- magnetic core
- core
- winding
- 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.)
- Expired - Fee Related
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、高電圧発生トラン
スやインバータトランスに使用して好適な巻線部品に関
する。The present invention relates to a winding component suitable for use in a high-voltage generating transformer or an inverter transformer.
【０００２】[0002]
【従来の技術】図５に示した従来例によって簡単に説明
すると、例えばフェライト製のドラム型磁性コア２０
は、ドラム芯2 １の上下にフランジ2 ２，２２ａを配設
し、そのフランジ２２，２２ａにはフランジ外周面から
ドラム芯２１の近くまで伸びる切込溝２３，２３ａが左
右対称に形成されている。一方、端子２５，２５…を左
右両側面に配設した平板状のターミナル２４には、その
表面に、上記ドラム型磁性コア２０の下側フランジ２２
ａを嵌合することができる凹陥部２６が形成され、ま
た、端子２５，２５…を設けてないターミナル２４の両
側面からターミナル２４の中心近くまで伸びる案内溝２
７，２７を左右対称に形成され、更に各案内溝２７の両
側には凸条案内２８，２８が形成されている。この二つ
の凸条案内２８，２８の外側面間の距離と上記型磁性コ
ア２０の切込溝２３，２３ａの内法寸法とは略等しくし
ていて、ドラムコア２０の切込溝２３ａをターミナル２
５の凸条案内２８，２８に合わせてドラムコア２０の下
側フランジ２２ａを案内溝２７内に嵌合させることで、
案内溝２７と切込溝２３ａとは重なり合うようにしてい
る。そこで、ターミナル２４の底側から持ってきたコイ
ルの巻き始めの線を、上記した案内溝２７と切込溝２３
ａとの間を通してドラム芯２１に巻き付け、両フランジ
２２、２２ａ間にコイルを形成し、巻き終わりの線は、
巻き初めの線とは反対側の案内溝２７と切込溝２３ａと
の間を通してターミナル２４の底側に引き出して、巻き
始めの線と巻き終わりの線の間の耐高電圧性を確保して
いた。なお、２９はドラム型磁性コア２０の外周部に嵌
着されるリングコアである。2. Description of the Related Art A brief description will be given of a conventional example shown in FIG.
Are provided with flanges 22 and 22a above and below the drum core 21. The flanges 22 and 22a are formed symmetrically with cut grooves 23 and 23a extending from the outer peripheral surface of the flange to the vicinity of the drum core 21. I have. On the other hand, a flat terminal 24 having terminals 25, 25... Disposed on both left and right sides has a lower flange 22 on the surface of the drum type magnetic core 20.
a, and a guide groove 2 extending from both side surfaces of the terminal 24 where the terminals 25, 25... are not provided to near the center of the terminal 24.
7, 27 are formed symmetrically, and convex guides 28, 28 are formed on both sides of each guide groove 27. The distance between the outer surfaces of the two ridge guides 28, 28 is substantially equal to the inner dimension of the cut grooves 23, 23a of the mold magnetic core 20, and the cut groove 23a of the drum core 20 is connected to the terminal 2.
By fitting the lower flange 22a of the drum core 20 into the guide groove 27 in accordance with the ridge guides 28, 28 of FIG.
The guide groove 27 and the cut groove 23a are made to overlap. Therefore, the winding start line of the coil brought from the bottom side of the terminal 24 is connected to the guide groove 27 and the cut groove
a around the drum core 21 to form a coil between the two flanges 22 and 22a.
It is drawn out to the bottom side of the terminal 24 through the space between the guide groove 27 and the cut groove 23a on the opposite side of the winding start line to ensure high voltage resistance between the winding start line and the winding end line. Was. Reference numeral 29 denotes a ring core fitted on the outer peripheral portion of the drum type magnetic core 20.
【０００３】[0003]
【発明が解決しようとする課題】上記のように、フラン
ジの外周面からドラム芯の近くまで切込溝を設けるドラ
ム型磁性コアの構成では、焼結によって変形が生じ易
く、しかもその変形の度合いはフランジの径が大きくな
る程増大するため、フランジは比較的小径に止め、その
代りにドラム芯を長くすることで必要なコイル容積を確
保せざるを得なかったから、巻線部品の薄型化は困難で
あった。本発明が解決しようとする課題は、薄型化が可
能で、しかも薄型化によって巻き始めの線と巻き終わり
の線の耐高電圧性を損なわない新規な構造を提供するこ
とにある。As described above, in the configuration of the drum type magnetic core in which the notch groove is provided from the outer peripheral surface of the flange to the vicinity of the drum core, deformation is easily caused by sintering, and the degree of the deformation is increased. Since the diameter increases as the diameter of the flange increases, the flange must be kept relatively small, and instead the length of the drum core must be increased to secure the required coil volume. It was difficult. The problem to be solved by the present invention is to provide a novel structure which can be reduced in thickness and which does not impair the high voltage resistance of the wire at the start of winding and the wire at the end of winding due to the reduction in thickness.
【０００４】[0004]
【課題を解決するための手段】上記した課題を解決する
ため、本発明は、ドラム芯の上下にフランジを形成した
ドラム型磁性コアと、スペーサ部の両側に端子装着部を
設けた合成樹脂製のターミナルを有するトランス用巻線
部品において、上記ターミナルには、ターミナルの側縁
から該ターミナルの略真ん中に向かって上記ドラム芯の
挿入案内溝と、そのターミナルの底面にドラム型磁性コ
アの下側フランジに嵌合する凹状嵌合部と、上記ターミ
ナルの左右の側方部に該凹状嵌合部の底面よりも僅かに
低くした段差状平面部分とを夫々設け、上記ドラム芯を
ターミナルの挿入案内溝に嵌挿し、ターミナルの凹状嵌
合部をドラム型磁性コアの下側フランジ上に嵌合された
状態で、ターミナルの段差状平面部分とドラム型磁性コ
アの下側フランジの上面との間に形成される隙間をコイ
ルの巻線用通路としたものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a drum type magnetic core having flanges formed on the upper and lower sides of a drum core, and a synthetic resin made by providing terminal mounting portions on both sides of a spacer portion. In the transformer winding component having a terminal, the terminal has an insertion guide groove of the drum core from a side edge of the terminal to substantially the center of the terminal, and a lower surface of the drum type magnetic core on a bottom surface of the terminal. A concave fitting portion to be fitted to the flange, and a stepped flat portion slightly lower than the bottom surface of the concave fitting portion are provided on the left and right side portions of the terminal, respectively, and the drum core is inserted into the terminal guide for insertion. With the concave fitting portion of the terminal fitted on the lower flange of the drum-shaped magnetic core, the stepped flat portion of the terminal and the lower flange of the drum-shaped magnetic core are inserted into the groove. A gap formed between the upper surface is obtained by the passage windings of the coil.
【０００５】[0005]
【発明の実施の形態】図１に示した実施例について説明
すると、ドラム芯２の上下にフランジ３、３ａを形成し
たドラム型磁性コア１は、従来のようなフランジ外周面
からドラム芯近くまで伸びる切欠溝２３，２３ａ（図５
参照）などは形成されておらず、図示のフランジ３、３
ａの平面形状は、円形周縁の一部を切欠して得た二つの
円弧面４，４ａと切欠端面５，５ａとが順に繋がった左
右対称形としている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIG. 1 will be described. A drum-type magnetic core 1 having flanges 3 and 3a formed above and below a drum core 2 is a conventional type from the outer peripheral surface of the flange to the vicinity of the drum core. Extending notch grooves 23, 23a (FIG. 5)
Are not formed, and the flanges 3, 3 shown in the figure are not formed.
The plane shape of a is a left-right symmetrical shape in which two arcuate surfaces 4, 4a obtained by notching a part of a circular peripheral edge and notch end surfaces 5, 5a are sequentially connected.
【０００６】平板状の合成樹脂製ターミナル６も、スペ
ーサ部７の両側に端子装着部８，８を設け、端子装着部
８，８の外側面から複数の端子９，９…を突設している
点では従来と変りはないが、上記スペーサ部７の側縁か
ら該スペーサ部７の略真ん中に向けて上記ドラム芯２の
挿入案内溝１０が形成されている点で異なる。この挿入
案内溝１０は、ドラム芯２の直径と略等しい幅を有し、
一方の端子装着部８寄りのスペーサ部７側縁に形成した
挿入案内溝１０の開口１０ａからスペーサ部７の略真ん
中に向けてくの字状に伸び、半円状端面１０ｂで終って
いる。ターミナル６にドラム芯２の挿入案内溝１０を形
成したことで、ターミナル６はドラムコア１の両フラン
ジ３，３ａ間に配設して、ドラム型磁性コア１の下側フ
ランジ３ａ上に載せることができる。The flat synthetic resin terminal 6 also has terminal mounting portions 8, 8 on both sides of the spacer portion 7, and a plurality of terminals 9, 9,... Protruding from the outer surfaces of the terminal mounting portions 8, 8. There is no difference from the prior art in that the insertion guide groove 10 of the drum core 2 is formed from the side edge of the spacer portion 7 to substantially the center of the spacer portion 7. This insertion guide groove 10 has a width substantially equal to the diameter of the drum core 2,
It extends in a V-shape from the opening 10a of the insertion guide groove 10 formed on the side edge of the spacer portion 7 near one terminal mounting portion 8 toward the substantially center of the spacer portion 7 and ends at the semicircular end face 10b. By forming the insertion guide groove 10 of the drum core 2 in the terminal 6, the terminal 6 can be disposed between the flanges 3, 3 a of the drum core 1 and mounted on the lower flange 3 a of the drum type magnetic core 1. it can.
【０００７】上記ターミナル６のスペーサ部７の裏面に
は、図１のターミナル６を裏返しにした図２から明らか
なように、下側フランジ３ａに嵌め合わせることが可能
な凹状嵌合部１１が形成されている。図示の円弧部分１
１ａおよび直線部分１１ｂは夫々下側フランジ２ａの円
弧面４ａおよび切欠端面５ａに適合するものであり、そ
の凹状嵌合部１１を下側フランジ３ａに嵌合させること
で、ターミナル６のセンターとドラム型磁性コア１のセ
ンターとが一致するように設定されることになる。As is apparent from FIG. 2 in which the terminal 6 of FIG. 1 is turned upside down, a concave fitting portion 11 which can be fitted to the lower flange 3a is formed on the back surface of the spacer portion 7 of the terminal 6. Have been. Arc part 1 shown
1a and the straight portion 11b are adapted to the arc surface 4a and the notch end surface 5a of the lower flange 2a, respectively, and the concave fitting portion 11 is fitted to the lower flange 3a, thereby the center of the terminal 6 and the drum are formed. The center of the mold magnetic core 1 is set to coincide.
【０００８】図２には、また、ターミナル６の左右の側
方部分に、凹状嵌合部１１の底面よりも僅かに低くした
段差状平面部分１２，１３が形成されることを示してい
る。上記凹状嵌合部１１の底面と段差状平面部分１２，
１３との段差の高さは、使用される線径よりも僅かに大
きいものとなっている。一般に高電圧発生用トランスの
コイルに使われる線材の径は、一例を示すと０．２mmと
細いものであるから、上記した段差の高さもこの程度に
僅かなものである。その段差状平面部分１２には、案内
溝１０の終端にあたる半円状端面１０ｂと端子装着部８
の端部とを連結する傾斜端面１４が形成され、また、段
差状平面部分１３には、端子装着部８のもう一方の端部
と切欠箇所１８とを連結する傾斜端面１５が形成されて
いる。FIG. 2 also shows that stepped flat portions 12 and 13 slightly lower than the bottom surface of the concave fitting portion 11 are formed on the left and right side portions of the terminal 6. A bottom surface of the concave fitting portion 11 and a stepped flat portion 12,
13 is slightly larger than the wire diameter used. In general, the diameter of a wire used for a coil of a transformer for generating a high voltage is as small as 0.2 mm as an example, and thus the height of the above-mentioned step is so small. The stepped flat portion 12 has a semi-circular end face 10 b at the end of the guide groove 10 and a terminal mounting portion 8.
An inclined end face 14 is formed to connect the other end of the terminal mounting portion 8 and the cutout portion 18 to the stepped flat portion 13. .
【０００９】いま、ドラム型磁性コア１のドラム芯２を
ターミナル６の挿入案内溝１０の開口１０ａから挿入
し、ドラム芯２の側面を半円状端面１０ｂに当接させ、
ついでターミナル６の凹状嵌合部１１をドラム型磁性コ
ア１の下側フランジ２ａに嵌合せしめる。この場合、上
記フランジの平面形状が円形周縁の一部を切欠して得た
右対称形であると、回り止めの機能が発揮される。両者
の接合面を接着等によって固着することで一体化がなさ
れる。この状態で、段差状平面部分１２，１３の底面と
ドラム型磁性コア１の下側フランジ２ａの上面との間に
は、夫々隙間が形成されることになる。段差状平面部分
１２側の隙間についていえば、使用する線径よりも僅か
に大きな高さを有し、外側は外部に連通し、内側はドラ
ム芯３に繋がるものであるから、コイル形成用の巻き始
めの線１６（図３及び図４参照）を挿入案内溝１０の開
口１０ａでターミナル６の上面側に出し、これをドラム
芯３の方向に引っ張り出すことで上記の隙間間に導入で
き、傾斜端面１４に沿いドラム芯３の表面に導けるか
ら、これを巻回することでドラム型磁性コア１の上側フ
ランジ２ａとターミナル６との間にコイルを形成するこ
とができる。また、巻き初めの線１６とは反対側に当る
段差状平面部分１３側の隙間についていえば、使用する
線径よりも僅かに大きな高さを有し、外側は外部に連通
し、内側は切欠箇所１８に繋がるものであるから、コイ
ルの巻き終わりの線１７は切欠箇所１８からこの隙間を
通し傾斜端面１５に沿って外部に引き出すことができ
る。こうして巻き初めと巻き終りの線間耐圧の確保がな
されることになる。なお、通常はドラム型磁性コア１の
外周部に図５に示したようにリングコアが嵌着されるの
であるが、図３と図４では図示するのを省略している。Now, the drum core 2 of the drum type magnetic core 1 is inserted through the opening 10a of the insertion guide groove 10 of the terminal 6, and the side surface of the drum core 2 is brought into contact with the semicircular end surface 10b.
Next, the concave fitting portion 11 of the terminal 6 is fitted to the lower flange 2 a of the drum type magnetic core 1. In this case, if the planar shape of the flange is a right symmetric shape obtained by cutting out a part of a circular peripheral edge, the function of a rotation stop is exhibited. The two surfaces are integrated by bonding them together by bonding or the like. In this state, gaps are respectively formed between the bottom surfaces of the stepped flat portions 12 and 13 and the upper surface of the lower flange 2a of the drum-shaped magnetic core 1. As for the gap on the side of the step-shaped flat portion 12, it has a height slightly larger than the wire diameter to be used, the outside communicates with the outside, and the inside connects to the drum core 3, so that the coil forming A winding start line 16 (see FIGS. 3 and 4) is brought out to the upper surface side of the terminal 6 through the opening 10 a of the insertion guide groove 10 and pulled out in the direction of the drum core 3 so that the wire 16 can be introduced into the gap. The coil can be formed between the upper flange 2a of the drum-type magnetic core 1 and the terminal 6 by winding it, since it can be guided to the surface of the drum core 3 along the inclined end surface 14. As for the gap on the side of the step-shaped flat portion 13 opposite to the wire 16 at the beginning of winding, the gap has a height slightly larger than the wire diameter to be used, the outside communicates with the outside, and the inside has a notch. Since it is connected to the point 18, the wire 17 at the end of winding of the coil can be drawn out from the notch point 18 to the outside along the inclined end face 15 through this gap. In this way, the line withstand voltage at the beginning and end of winding is ensured. Usually, a ring core is fitted to the outer peripheral portion of the drum type magnetic core 1 as shown in FIG. 5, but is not shown in FIGS. 3 and 4.
【００１０】[0010]
【発明の効果】本発明は、ドラム型磁性コアの両フラン
ジ間にターミナルを介挿させ、そのターミナルの底面に
形成した凹状嵌合部をドラム型磁性コアの下側フランジ
上に重合させた状態で、ターミナル裏面の左右側方部に
形成した段差状平面部分とドラム型磁性コアの下側フラ
ンジの上面との間に形成される隙間をコイルの巻線用通
路とするものであるから、従来のようなフランジ面の切
込溝を巻線用通路としていたものとは違って焼結による
変形が小さく、フランジ径の大きな背丈の低いドラム型
磁性コアとすることができ、その結果、当該巻線部品の
薄型化が可能である。また、このように薄型化してもコ
イルの巻き初め線および巻き終り線の耐高電圧性は確実
に維持できる。上記の隙間は使用される線径よりも僅か
に大きなものであれば足るから、段差状平面部分を形成
したことにより実質的に薄型化が阻害されるといったこ
とにはならない。According to the present invention, a terminal is inserted between both flanges of a drum type magnetic core, and a concave fitting portion formed on the bottom surface of the terminal is overlapped on a lower flange of the drum type magnetic core. Since the gap formed between the stepped flat portion formed on the left and right sides of the back surface of the terminal and the upper surface of the lower flange of the drum-type magnetic core is used as a coil winding passage, Unlike the case where the slit grooves on the flange surface are used as winding passages, the deformation due to sintering is small, and a drum type magnetic core having a large flange diameter and a short height can be obtained. Wire components can be made thinner. Even if the coil is thinned, the high voltage resistance of the winding start wire and the winding end wire can be reliably maintained. It is sufficient if the gap is slightly larger than the wire diameter used. Therefore, the formation of the step-shaped flat portion does not substantially hinder the reduction in thickness.
【図１】 本発明になる巻線部品を構成するドラム型磁
性コアとターミナルの一例を示す斜視図である。FIG. 1 is a perspective view showing an example of a drum-type magnetic core and a terminal constituting a winding part according to the present invention.
【図２】 図１のターミナルを裏返しにして示した斜視
図である。FIG. 2 is a perspective view showing the terminal of FIG. 1 upside down.
【図３】 図１の巻線部品を使って構成したトランスの
斜視図である。FIG. 3 is a perspective view of a transformer configured using the winding components of FIG. 1;
【図４】 図３のトランスを裏返しにして示した斜視図
である。FIG. 4 is a perspective view showing the transformer of FIG. 3 upside down;
【図５】 従来の巻線部品の図１に相当する斜視図であ
る。FIG. 5 is a perspective view corresponding to FIG. 1 of a conventional winding component.
１はドラム型磁性コア ２はドラム芯 ３，３ａはフランジ ６はターミナル ７はスペーサ部 ８は端子装着部 ９は端子 １０は挿入案内溝 １１は凹状嵌合部 １２，１３は段差状平面部分 1 is a drum type magnetic core 2 is a drum core 3, 3a is a flange 6 is a terminal 7 is a spacer portion 8 is a terminal mounting portion 9 is a terminal 10 is an insertion guide groove 11 is a concave fitting portion 12, 13 is a stepped flat portion
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｈ０１Ｆ 31/00 Ｃ (56)参考文献 特開 平８−17655（ＪＰ，Ａ) 実開 平３−109313（ＪＰ，Ｕ) 実開 平５−50706（ＪＰ，Ｕ) 実開 昭53−93647（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01F 19/00,27/06 H01F 27/28 - 27/30 H01F 30/00 ────────────────────────────────────────────────── (5) Continuation of the front page (51) Int.Cl. 7 Identification symbol FI H01F 31/00 C (56) References JP-A-8-17655 (JP, A) JP-A-3-109313 (JP, U) Japanese Utility Model Application Hei 5-50706 (JP, U) Japanese Utility Model Application Showa 53-93647 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H01F 19/00, 27/06 H01F 27/28 -27/30 H01F 30/00
Claims (3)
ラム型磁性コアと、スペーサ部の両側に端子装着部を設
けた合成樹脂製のターミナルを有するトランス用巻線部
品において、 上記ターミナルには、ターミナルの側縁から該ターミナ
ルの略真ん中に向かって上記ドラム芯の挿入案内溝と、
そのターミナルの底面にドラム型磁性コアの下側フラン
ジに嵌合する凹状嵌合部と、上記ターミナルの左右の側
方部に該凹状嵌合部の底面よりも僅かに低くした段差状
平面部分とを夫々設け、 上記ドラム芯をターミナルの挿入案内溝に嵌挿し、ター
ミナルの凹状嵌合部をドラム型磁性コアの下側フランジ
上に嵌合された状態で、ターミナルの段差状平面部分と
ドラム型磁性コアの下側フランジの上面との間に形成さ
れる隙間をコイルの巻線用通路としたことを特徴とする
トランス用巻線部品。1. A transformer winding component having a drum type magnetic core having flanges formed above and below a drum core and a synthetic resin terminal having terminal mounting portions on both sides of a spacer portion, wherein the terminal includes: An insertion guide groove of the drum core from a side edge of the terminal toward substantially the center of the terminal,
A concave fitting portion fitted to the lower flange of the drum-shaped magnetic core on the bottom surface of the terminal; and a stepped flat portion slightly lower than the bottom surface of the concave fitting portion on the left and right side portions of the terminal. The above-mentioned drum core is inserted into the insertion guide groove of the terminal, and the concave fitting portion of the terminal is fitted on the lower flange of the drum-type magnetic core. A winding part for a transformer, wherein a gap formed between the magnetic core and an upper surface of a lower flange is used as a coil winding passage.
一部を切欠して得た左右対称形である請求項１のトラン
ス用巻線部品。2. The winding component for a transformer according to claim 1, wherein the planar shape of the flange is a left-right symmetrical shape obtained by cutting out a part of a circular peripheral edge.
ム型磁性コアの下側フランジの上面との間に形成される
隙間は、使用される線径よりも僅かに大きい請求項１の
トランス用巻線部品。3. The transformer winding according to claim 1, wherein a gap formed between the stepped flat portion of the terminal and the upper surface of the lower flange of the drum-shaped magnetic core is slightly larger than a wire diameter used. Wire parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02326198A JP3246431B2 (en) | 1998-02-04 | 1998-02-04 | Transformer winding parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02326198A JP3246431B2 (en) | 1998-02-04 | 1998-02-04 | Transformer winding parts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11224819A JPH11224819A (en) | 1999-08-17 |
| JP3246431B2 true JP3246431B2 (en) | 2002-01-15 |
Family
ID=12105671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02326198A Expired - Fee Related JP3246431B2 (en) | 1998-02-04 | 1998-02-04 | Transformer winding parts |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3246431B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5544721B2 (en) * | 2009-02-03 | 2014-07-09 | スミダコーポレーション株式会社 | Magnetic element |
-
1998
- 1998-02-04 JP JP02326198A patent/JP3246431B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11224819A (en) | 1999-08-17 |
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