JP3108538B2 - Plane transformer - Google Patents
Plane transformerInfo
- Publication number
- JP3108538B2 JP3108538B2 JP04215928A JP21592892A JP3108538B2 JP 3108538 B2 JP3108538 B2 JP 3108538B2 JP 04215928 A JP04215928 A JP 04215928A JP 21592892 A JP21592892 A JP 21592892A JP 3108538 B2 JP3108538 B2 JP 3108538B2
- Authority
- JP
- Japan
- Prior art keywords
- groove
- coil
- coil patterns
- magnetic
- coil pattern
- 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 - Lifetime
Links
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- Coils Or Transformers For Communication (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、バラン（平衡−不平衡
変換回路）等の信号伝送トランスに利用される平面トラ
ンスに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planar transformer used for a signal transmission transformer such as a balun (balanced-unbalanced conversion circuit).
【０００２】[0002]
【従来の技術】図７はスパイラル型と呼ばれる従来の平
面トランスを示し、この平面トランスは、下部の基板１
の一面に形成した磁性体層２の上に、１次側コイル３と
なる導体層及び２次側コイル４となる導体層をスパイラ
ル状に形成し、更に２次側コイル４の上方に磁性体層５
を形成したもので、各磁性体層２、５と、各導体層との
間には絶縁体層６を介在させて絶縁している。2. Description of the Related Art FIG. 7 shows a conventional planar transformer called a spiral type.
A conductor layer serving as the primary coil 3 and a conductor layer serving as the secondary coil 4 are spirally formed on the magnetic layer 2 formed on one side of the magnetic layer 2. Layer 5
Is formed and is insulated by interposing an insulator layer 6 between each of the magnetic layers 2 and 5 and each of the conductor layers.
【０００３】[0003]
【発明が解決しようとする課題】上記の平面トランスで
は、磁性体層２、５が絶縁体層６で分離された開磁路構
造のため、磁束の漏れが大きく、１次側コイル３及び２
次側コイル４のインダクタンス値を余り大きく稼げない
という問題があった。また各コイル３、４の内側の端に
設けている電極３ａ，４ａを取り出すために磁性体層５
に大きな開口孔７を開ける必要があるが、フェライトの
ような磁性材からなる磁性体層５では大きな孔を後加工
で開けるのは難しいという問題があった。In the above-described planar transformer, since the magnetic layers 2 and 5 are separated from each other by the insulating layer 6, the leakage of magnetic flux is large, and the primary coils 3 and 2 have large leakage.
There was a problem that the inductance value of the secondary coil 4 could not be increased too much. In order to extract the electrodes 3a and 4a provided at the inner ends of the coils 3 and 4,
However, there is a problem that it is difficult to form a large hole by post-processing in the magnetic layer 5 made of a magnetic material such as ferrite.
【０００４】本発明は上述の問題点に鑑みて為されたも
ので、その目的とするところは大きなインダクタンス値
が得られ、しかも製作が容易な平面トランスを提供する
にある。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a flat transformer which can obtain a large inductance value and can be easily manufactured.
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成するた
めに、請求項１の発明は、絶縁材料よりなる薄板状の基
材の片面に導体層よりなる方形スパイラル状の第 1のコ
イルパターンを形成し、他の片面に導体層よりなる方形
スパイラル状の第２のコイルパターンを形成し、薄板状
の２枚の磁性板を上記各コイルパターンに対面するよう
に配置した平面トランスにおいて、磁性板の片方、又は
両方に横方向２本、縦方向２本の直線状の条溝を井の字
形に交差させた溝部を形成し、溝部の４本の条溝にて囲
繞された磁性板部分を嵌める開口窓を基材の一部に設
け、上記第１、第２のコイルパターンが上記溝部中に埋
設されるように構成したものである。In order to achieve the above-mentioned object, a first aspect of the present invention is to provide a rectangular spiral first coil pattern comprising a conductor layer on one surface of a thin plate-like substrate made of an insulating material. In a planar transformer in which a rectangular spiral second coil pattern made of a conductor layer is formed on the other side and two thin magnetic plates are arranged so as to face each of the coil patterns, A magnetic plate portion in which two or more horizontal and two linear grooves are formed in one or both sides of the plate so that the grooves cross each other in a cross shape, and are surrounded by the four grooves of the groove. Is provided in a part of the base material so that the first and second coil patterns are embedded in the grooves.
【０００６】請求項２の発明は、上記溝部の条溝の深さ
を上記基材及び第１，第２のコイルパターンの導体層の
厚さを合わせた厚みと一致するようにしたものである。
請求項３の発明は、上記第１、第２のコイルパターンを
上記溝部の４方向の何れに埋設した場合にも、コイルパ
ターンの内端が電極取り出し用孔に当接するように、上
記第１，第２のコイルパターンの内側の端が臨む上記両
磁性板の４箇所の位置に電極取り出し用孔を夫々設けた
ものである。According to a second aspect of the present invention, the depth of the groove of the groove portion is made to match the thickness of the base material and the conductor layers of the first and second coil patterns. .
The invention according to claim 3, said first, even if the second coil pattern embedded in any of the four directions of the groove, Koirupa
An electrode extraction hole is provided at each of four positions of the magnetic plates facing the inner ends of the first and second coil patterns so that the inner end of the turn comes into contact with the electrode extraction hole. is there.
【０００７】請求項４の発明は、第１、第２のコイルパ
ターンの内側の端をコイルパターンの中心まで延長する
とともに上記延長部位の各コイルパターンを埋設するた
めに上記条溝で囲繞される磁性板の片方又は両方に、第
１、第２のコイルパターンの中心に対応する位置で直交
するＸ状溝部を形成し、第１、第２のコイルパターンの
中心に対応する上記両磁性板の位置に電極取り出し用孔
を設けたものである。According to a fourth aspect of the present invention, the inner ends of the first and second coil patterns are extended to the center of the coil pattern, and the first and second coil patterns are surrounded by the grooves to embed the respective coil patterns in the extended portions. An X-shaped groove is formed on one or both of the magnetic plates at a position corresponding to the centers of the first and second coil patterns, and the X-shaped grooves are formed on the magnetic plates corresponding to the centers of the first and second coil patterns. An electrode extraction hole is provided at a position.
【０００８】[0008]
【作用】請求項１の発明の構成では、磁性板の片方、又
は両方に横方向２本、縦方向２本の直線状の条溝を井の
字形に交差させた溝部を形成し、溝部の４本の条溝にて
囲繞された磁性板部分を嵌める開口窓を基材の一部に設
け、上記第１、第２のコイルパターンが上記溝部中に埋
設されるように構成したので、閉磁路形のトランスが実
現できて、大きなインダクタンス値が得られる。According to the structure of the first aspect of the present invention, one or both of the magnetic plates are formed with a groove in which two horizontal and two vertical linear grooves intersect in a cross shape. An opening window for fitting the magnetic plate portion surrounded by the four grooves is provided in a part of the base material, and the first and second coil patterns are embedded in the grooves. A road-type transformer can be realized, and a large inductance value can be obtained.
【０００９】請求項２の発明の構成では、請求項１の発
明の構成において、上記溝部の条溝の深さを上記基材及
び第１，第２のコイルパターンの導体層の厚さを合わせ
た厚みと一致するようにしたので、磁性板が磁化され易
くなり、そのため大きなインダクタンス値が得られる。
請求項３の発明の構成では、請求項１又は２の発明の構
成において、上記第１、第２のコイルパターンを上記溝
部の４方向の何れに埋設した場合にも、コイルパターン
の内端が電極取り出し用孔に当接するように、上記第
１，第２のコイルパターンの内側の端が臨む上記両磁性
板の４箇所の位置に電極取り出し用孔を夫々設けたもの
であるから、磁性板を４方向の何れに向けても両コイル
パターンを埋設することができ、しかもコイルパターン
の内側の端が臨む電極取り出し用孔から当該端に外部か
らのリード線を接続して信号を取り出すことができる。According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the depth of the groove of the groove is adjusted to the thickness of the base material and the conductor layers of the first and second coil patterns. Since the thickness of the magnetic plate is set to be equal to that of the magnetic plate, the magnetic plate is easily magnetized, and a large inductance value is obtained.
According to a third aspect of the present invention, in the configuration of the first or second aspect of the present invention, even if the first and second coil patterns are embedded in any of the four directions of the groove, the coil pattern is
Electrode take-out holes are provided at four positions of the two magnetic plates, respectively, where the inner ends of the first and second coil patterns face each other such that the inner ends of the two abut on the electrode take-out holes. Therefore, both coil patterns can be buried regardless of the direction of the magnetic plate in any of the four directions, and an external lead wire is connected to the end from the electrode extraction hole facing the inner end of the coil pattern to signal. Can be taken out.
【００１０】請求項４の発明の構成では、請求項１又は
２の発明の構成において、第１、第２のコイルパターン
の内側の端をコイルパターンの中心まで延長するととも
に上記延長部位の各コイルパターンを埋設するために上
記条溝で囲繞される磁性板の片方又は両方に、第１、第
２のコイルパターンの中心に対応する位置で直交するＸ
状溝部を形成し、第１、第２のコイルパターンの中心に
対応する上記両磁性板の位置に電極取り出し用孔を設け
たので、磁性板を４方向の何れに向けても両コイルパタ
ーンを埋設することができ、しかも中心の電極取り出し
用孔からコイルパターンの内側の端にリード線を接続し
て外部に信号を取り出すことができる。According to a fourth aspect of the present invention, in the configuration of the first or second aspect of the present invention, the inner ends of the first and second coil patterns are extended to the center of the coil pattern, and each of the coils of the extended portion is extended. In order to embed the pattern, one of or both of the magnetic plates surrounded by the above-mentioned grooves is perpendicular to the position corresponding to the center of the first and second coil patterns.
A groove is formed, and an electrode extraction hole is provided at the position of the two magnetic plates corresponding to the centers of the first and second coil patterns. It can be buried, and a signal can be extracted to the outside by connecting a lead wire to the inner end of the coil pattern from the central electrode extraction hole.
【００１１】[0011]
【実施例】以下本発明を実施例により説明する。 （実施例１）本実施例は請求項１〜３の発明に対応する
実施例であって、図２（ａ）（ｂ）に示すように、絶縁
材料からなる薄板状の基材１０の片面に導体層よりなる
方形スパイラル状の第１のコイルパターンを形成し、他
の片面に導体層よりなる方形スパイラル状の第２のコイ
ルパターンを形成して、第１のコイルパターンで１次側
コイル１１を、第２のコイルパターンで２次側コイル１
２を構成している。The present invention will be described below with reference to examples. (Embodiment 1) This embodiment is an embodiment corresponding to the first to third aspects of the present invention, and as shown in FIGS. 2A and 2B, one surface of a thin plate-shaped base material 10 made of an insulating material. A first spiral coil pattern formed of a conductor layer on the other side, and a second spiral coil pattern formed of a conductor layer on the other side, and a primary coil formed by the first coil pattern. 11 is the secondary coil 1 in the second coil pattern.
2.
【００１２】基材１０は厚さ数十μｍの絶縁フィルムよ
りなり、両面に積層した銅膜をエッチング加工すること
により１次側、２次側のコイル１１、１２を構成する各
コイルパターンを形成している。また基材１０の中央部
には方形の開口窓１３を設けている。一方本実施例で使
用する磁性板１４、１５は薄板状のフェライトよりな
り、図３に示すように一方の磁性体１４には上記コイル
１１、１２のコイルパターンを４方向の何れでも埋設で
きるように横方向２本、縦方向２本の直線状の条溝が井
の字形に交差した溝部１６を形成しており、溝部１６の
各条溝の深さは基材１０及び１次側コイル１１の導体層
の厚さ、２次側コイル１２の導体層の厚さを合わせた厚
みと一致させている。この溝部１６の各条溝は磁性板１
４に溝彫り加工を繰り返すことにより形成したものであ
る。The substrate 10 is made of an insulating film having a thickness of several tens of μm, and the copper films laminated on both sides are etched to form the respective coil patterns constituting the primary and secondary coils 11 and 12. doing. Further, a square opening window 13 is provided in the center of the base material 10. On the other hand, the magnetic plates 14 and 15 used in this embodiment are made of thin plate-like ferrite, and as shown in FIG. 3, the coil patterns of the coils 11 and 12 can be embedded in any one of the four magnetic members 14 in one of the four directions. A groove 16 in which two horizontal and two vertical linear grooves intersect in a well shape is formed, and the depth of each groove of the groove 16 is determined by the base material 10 and the primary coil 11. And the thickness of the conductor layer of the secondary coil 12 is made equal to the total thickness. Each groove of the groove 16 is formed by the magnetic plate 1.
4 is formed by repeating groove processing.
【００１３】また１次側、２次側のコイル１１、１２の
コイルパターンを溝部１６の条溝の何れの方向に埋設し
ても、１次側、２次側コイル１１、１２の内側の端に設
けた電極１９が臨む各磁性板１４、１５の４箇所の位置
に電極取り出し用孔１７を夫々貫通させてある。従っ
て、磁性板１４、１５の方向に関係なく電極取り出し用
孔１７からリード線を電極１９に接続して信号を外部取
り出すことができるのである。[0015] Even if the coil patterns of the primary and secondary coils 11 and 12 are embedded in any direction of the groove of the groove portion 16, the inner ends of the primary and secondary coils 11 and 12 are formed. The holes 17 for taking out the electrodes are respectively penetrated at four positions of each of the magnetic plates 14 and 15 facing the electrodes 19 provided in the above. Therefore, regardless of the direction of the magnetic plates 14 and 15, a signal can be externally extracted by connecting a lead wire to the electrode 19 through the electrode extracting hole 17.
【００１４】各コイルパターン１１、１２の外側の端に
設けた電極１９’は溝部１６の各条溝の何れか端部の開
口に臨むためリード線等を簡単に接続することができ
る。而して開口窓１３に溝部１６の４本の条溝で囲繞さ
れる磁性体１４の中心部を嵌め込んで、１次側、２次側
のコイル１１、１２のコイルパターンを磁性板１４の溝
部１６に埋設し、磁性板１４の上部に磁性板１５を載置
すると、本実施例の平面トランスが完成する。完成した
平面トランスの断面状態は図１に示すようになる。この
図１から明らかなように完成した平面トランスは磁性板
１４、１５が各コイル１１、１２のコイルパターンを形
成する導体層の回りをとり囲む閉磁路構造となる。しか
も磁性板１４、１５に各コイル１１、１２のコイルパタ
ーンが密着するため、磁性板１４、１５が磁化され易
く、大きなインダクタンス値を得ることができる。The electrode 19 'provided at the outer end of each of the coil patterns 11 and 12 faces the opening at either end of each groove of the groove 16, so that a lead wire or the like can be easily connected. The center portion of the magnetic body 14 surrounded by the four grooves of the groove 16 is fitted into the opening window 13, and the coil patterns of the primary and secondary coils 11 and 12 are When the magnetic plate 15 is buried in the groove portion 16 and the magnetic plate 15 is placed on the magnetic plate 14, the planar transformer of this embodiment is completed. The cross-sectional state of the completed planar transformer is as shown in FIG. As is clear from FIG. 1, the completed planar transformer has a closed magnetic circuit structure in which the magnetic plates 14 and 15 surround the conductor layers forming the coil patterns of the coils 11 and 12. Moreover, since the coil patterns of the coils 11 and 12 are in close contact with the magnetic plates 14 and 15, the magnetic plates 14 and 15 are easily magnetized, and a large inductance value can be obtained.
【００１５】（実施例２）本実施例は請求項１、２、４
の発明に対応する実施例であり、図４に示すように絶縁
材料よりなる薄板状の基材１０の片面に導体層より成る
方形スパライル状の第１のコイルパターンを、他の片面
に導体層よりなる方形スパイラル状の第２のコイルパタ
ーンを夫々形成するとともに各コイルパターンの内側の
端を中心まで延長している。そしてこれら第１のコイル
パターン、第２のコイルパターンで１次側コイル１１、
２次側コイル１２を構成する。(Embodiment 2) This embodiment relates to claims 1, 2 and 4.
As shown in FIG. 4, a first coil pattern of a rectangular sparey shape made of a conductor layer is provided on one side of a thin plate-shaped base material 10 made of an insulating material, and The second spiral spiral coil patterns are respectively formed and the inner ends of the respective coil patterns are extended to the center. The first coil pattern and the second coil pattern constitute the primary coil 11,
The secondary coil 12 is configured.
【００１６】基材１０は厚さ数十μｍの絶縁フィルムよ
りなり、両面に積層した銅膜をエッチング加工するこに
より１次側、２次側のコイル１１、１２を構成する各コ
イルパターンを形成している。また基材１０の中央部に
おいて、各コイルパターンの延長部位を残すように延長
部位の両側には三角形の開口窓１３ａ，１３ｂが設けら
れている。The base material 10 is formed of an insulating film having a thickness of several tens of μm, and the copper films laminated on both surfaces are etched to form the respective coil patterns constituting the primary and secondary coils 11 and 12. doing. In the center of the base 10, triangular openings 13a and 13b are provided on both sides of the extension so as to leave the extension of each coil pattern.
【００１７】一方本実施例で使用する磁性板１４、１５
は実施例１と同様に薄板状のフェライトよりなり、図５
に示すように実施例１と同様に井字状の溝部１６を磁性
板１４に形成し、更に溝部１６の４本条溝で囲繞される
磁性体１４の部位に対角線条に交差するＸ状溝部１８を
形成している。各溝部１６、１８の深さは基材１０及び
１次側コイル１１のコイルパターンの導体層の厚さ、２
次側コイル１２のコイルパターンの導体層の厚さを合わ
せた厚みと一致させている。これらの溝部１６、１８の
形成は磁性板１４に溝彫り加工を繰り返すことにより行
なう。On the other hand, the magnetic plates 14 and 15 used in this embodiment
Is made of a thin plate-like ferrite as in the first embodiment.
As shown in FIG. 5, an I-shaped groove 16 is formed in the magnetic plate 14 in the same manner as in the first embodiment, and an X-shaped groove 18 intersects a diagonal line at a portion of the magnetic body 14 surrounded by the four grooves of the groove 16. Is formed. The depth of each of the grooves 16 and 18 depends on the thickness of the conductor layer of the coil pattern of the base material 10 and the primary coil 11, 2.
The thickness of the conductor layer of the coil pattern of the secondary coil 12 is matched with the combined thickness. The formation of these grooves 16 and 18 is carried out by repeatedly forming grooves on the magnetic plate 14.
【００１８】またＸ状溝部１８の中心には電極取り出し
用孔１７を穿設しており、両コイル１１、１２のコイル
パターンを溝部１６、１８のいずれの方向に埋設して
も、コイルパターンの内側の端に設けた電極１９が上記
孔１７に一致して臨むため、磁性板１４、１５の方向に
関係なく孔１７からリード線を電極１９に接続して信号
を外部に取り出すことができるのである。各コイルパタ
ーン１１、１２の外側の端に設けた電極１９’は溝部１
６の各条溝の何れか端部の開口に臨むためリード線等を
簡単に接続することができる。An electrode extraction hole 17 is formed at the center of the X-shaped groove portion 18 so that the coil pattern of the coils 11 and 12 can be embedded in either direction of the groove portion 16 or 18 regardless of the direction of the coil pattern. Since the electrode 19 provided on the inner end faces the hole 17 so as to face the hole 17, a lead wire can be connected to the electrode 19 from the hole 17 regardless of the direction of the magnetic plates 14 and 15, and a signal can be taken out. is there. An electrode 19 ′ provided at the outer end of each of the coil patterns 11 and 12 has a groove 1
The lead wire or the like can be easily connected because it faces the opening at any end of each groove of No. 6.
【００１９】而して両コイル１１、１２のコイルパター
ンを磁性板１４の溝部１６，１８に埋設して、磁性板１
４の上部に磁性板１５を載置すると本実施例の平面トラ
ンスが完成する。この完成した平面トランスの断面状態
は図５に示すようになる。この図５から明らかなように
本実施例の平面トランスも磁性板１４、１５が両コイル
１１、１２のコイルパターンの導体層の回りをとり囲む
閉磁路構造となる。また実施例１と同様に磁性板１４、
１５に両コイル１１、１２のコイルパターンが密着する
ため、磁性板１４、１５が磁化され易く、大きなインダ
クタンス値を得ることができる。The coil patterns of the coils 11 and 12 are embedded in the grooves 16 and 18 of the magnetic plate 14 so that the magnetic plate 1
When the magnetic plate 15 is placed on the upper part of 4, the planar transformer of this embodiment is completed. FIG. 5 shows the cross-sectional state of the completed planar transformer. As is apparent from FIG. 5, the planar transformer of this embodiment also has a closed magnetic circuit structure in which the magnetic plates 14 and 15 surround the conductor layers of the coil patterns of the coils 11 and 12. Also, as in the first embodiment, the magnetic plate 14
Since the coil patterns of both coils 11 and 12 are in close contact with 15, the magnetic plates 14 and 15 are easily magnetized, and a large inductance value can be obtained.
【００２０】[0020]
【発明の効果】請求項１の発明は、磁性板の片方、又は
両方に横方向２本、縦方向２本の直線状の条溝を井の字
形に交差させた溝部を形成し、溝部の４本の条溝にて囲
繞された磁性板部分を嵌める開口窓を基材の一部に設
け、上記第１、第２のコイルパターンが上記溝部中に埋
設されるように構成したので、閉磁路形のトランスが実
現できて、大きなインダクタンス値が得られるという効
果があり、しかも溝部によりコイルパターンを埋設する
構造であるため、後加工が容易な溝彫り加工により溝部
を形成することができるため、製作が容易となり、コス
ト面でも有利であるという効果もある。According to the first aspect of the present invention, one or both of the magnetic plates are formed with a groove in which two horizontal and two vertical linear grooves intersect in a cross shape. An opening window for fitting the magnetic plate portion surrounded by the four grooves is provided in a part of the base material, and the first and second coil patterns are embedded in the grooves. The effect is that a road-type transformer can be realized, and a large inductance value can be obtained. In addition, since the coil pattern is buried in the groove, the groove can be formed by groove engraving, which can be easily processed later. In addition, there is an effect that the production becomes easy and the cost is also advantageous.
【００２１】請求項２の発明は、請求項１の発明の構成
において、上記溝部の条溝の深さを上記基材及び第１，
第２のコイルパターンの導体層の厚さを合わせた厚みと
一致するようにしたので、磁性板が磁化され易くなり、
そのため大きなインダクタンス値が得られるという効果
がある。請求項３の発明は、請求項１又は２の発明の構
成において、上記第１、第２のコイルパターンを上記溝
部の４方向の何れに埋設した場合にも、コイルパターン
の内端が電極取り出し用孔に当接するように、上記第
１，第２のコイルパターンの内側の端が臨む上記両磁性
板の４箇所の位置に電極取り出し用孔を夫々設けたもの
であるから、磁性板を４方向の何れに向けても両コイル
パターンを埋設することができ、しかもコイルパターン
の内側の端が臨む電極取り出し用孔から当該端に外部か
らのリード線を接続して信号を取り出すことができると
いう効果がある。According to a second aspect of the present invention, in the configuration of the first aspect of the present invention, the depth of the groove of the groove portion is set to be equal to that of the base material and the first,
Since the thickness of the conductor layer of the second coil pattern matches the combined thickness, the magnetic plate is easily magnetized,
Therefore, there is an effect that a large inductance value can be obtained. According to a third aspect of the present invention, in the configuration of the first or second aspect of the invention, even if the first and second coil patterns are embedded in any of the four directions of the groove, the coil pattern is
Electrode take-out holes are provided at four positions of the two magnetic plates, respectively, where the inner ends of the first and second coil patterns face each other such that the inner ends of the two abut on the electrode take-out holes. Therefore, both coil patterns can be buried regardless of the direction of the magnetic plate in any of the four directions, and an external lead wire is connected to the end from the electrode extraction hole facing the inner end of the coil pattern to signal. There is an effect that can be taken out.
【００２２】請求項４の発明は、請求項１又は２の発明
の構成において、第１、第２のコイルパターンの内側の
端をコイルパターンの中心まで延長するとともに上記延
長部位の各コイルパターンを埋設するために上記条溝で
囲繞される磁性板の片方又は両方に、第１、第２のコイ
ルパターンの中心に対応する位置で直交するＸ状溝部を
形成し、第１、第２のコイルパターンの中心に対応する
上記両磁性板の位置に電極取り出し用孔を設けたので、
磁性板を４方向の何れに向けても両コイルパターンを埋
設することができ、しかも中心の電極取り出し用孔から
コイルパターンの内側の端にリード線を接続して信号を
外部に取り出すことができるという効果がある。According to a fourth aspect of the present invention, in the configuration of the first or second aspect, the inner ends of the first and second coil patterns are extended to the center of the coil pattern, and each of the coil patterns of the extended portion is formed. An X-shaped groove is formed on one or both of the magnetic plates surrounded by the groove to be embedded at a position corresponding to the center of the first and second coil patterns, and the first and second coils are formed. Since the holes for taking out the electrodes were provided at the positions of the two magnetic plates corresponding to the center of the pattern,
Both coil patterns can be embedded by directing the magnetic plate in any of the four directions, and a signal can be extracted outside by connecting a lead wire to the inner end of the coil pattern from the central electrode extraction hole. This has the effect.
【図１】本発明の実施例１の同上の側断面図である。FIG. 1 is a side sectional view of Embodiment 1 of the present invention.
【図２】（ａ）は同上の基材部の側断面図である。
（ｂ）同上の基材部の上面図である。FIG. 2 (a) is a side sectional view of a base member of the above.
(B) It is a top view of the base material part same as the above.
【図３】同上の磁性板の分解斜視図である。FIG. 3 is an exploded perspective view of the magnetic plate.
【図４】（ａ）は本発明の実施例２の基材部の側断面図
である。（ｂ）同上の基材部の上面図である。FIG. 4A is a side sectional view of a base member according to a second embodiment of the present invention. (B) It is a top view of the base material part same as the above.
【図５】同上の磁性板の分解斜視図である。FIG. 5 is an exploded perspective view of the magnetic plate.
【図６】同上の側断面図である。FIG. 6 is a side sectional view of the same.
【図７】（ａ）は従来例の側断面図である。（ｂ）同上
の上面図である。FIG. 7A is a side sectional view of a conventional example. (B) It is a top view of the same.
１０ 基材 １１ １次側コイル １２ ２次側コイル １３ 開口窓 １４ 磁性板 １５ 磁性板 １６ 溝部 Reference Signs List 10 base material 11 primary coil 12 secondary coil 13 opening window 14 magnetic plate 15 magnetic plate 16 groove
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01F 17/00 H01F 19/00 - 19/06 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) H01F 17/00 H01F 19/00-19/06
Claims (4)
体層よりなる方形スパイラル状の第 1のコイルパターン
を形成し、他の片面に導体層よりなる方形スパイラル状
の第２のコイルパターンを形成し、薄板状の２枚の磁性
板を上記各コイルパターンに対面するように配置した平
面トランスにおいて、磁性板の片方、又は両方に横方向
２本、縦方向２本の直線状の条溝を井の字形に交差させ
た溝部を形成し、溝部の４本の条溝にて囲繞された磁性
板部分を嵌める開口窓を基材の一部に設け、上記第１、
第２のコイルパターンが上記溝部中に埋設されるように
構成したことを特徴とする平面トランス。1. A rectangular spiral first coil pattern comprising a conductor layer is formed on one surface of a thin plate-shaped base material made of an insulating material, and a rectangular spiral second coil pattern comprising a conductor layer is formed on another surface. In a planar transformer in which a pattern is formed and two thin magnetic plates are arranged so as to face the above-mentioned coil patterns, one or both of the magnetic plates have two linear lines in the horizontal direction and two linear lines in the vertical direction. Forming a groove in which the grooves intersect in the shape of a well, and providing an opening window in a part of the base material for fitting the magnetic plate portion surrounded by the four grooves of the groove;
A planar transformer, wherein a second coil pattern is buried in the groove.
１、第２のコイルパターンの導体層の厚さを合わせた厚
みと一致するようにしたことを特徴とする請求項１記載
の平面トランス。2. The structure according to claim 1, wherein the depth of the groove of said groove portion is made to match the thickness of the base material and the conductor layers of the first and second coil patterns. The described planar transformer.
部の４方向の何れに埋設した場合にも、コイルパターン
の内端が電極取り出し用孔に当接するように、上記第
１，第２のコイルパターンの内側の端が臨む上記両磁性
板の４箇所の位置に電極取り出し用孔を夫々設けたこと
を特徴とする請求項１又は２記載の平面トランス。3. When the first and second coil patterns are embedded in any of the four directions of the groove, the coil pattern is
An electrode extraction hole is provided at each of four positions of the magnetic plates facing the inner ends of the first and second coil patterns so that an inner end of the electrode comes into contact with the electrode extraction hole. The planar transformer according to claim 1 or 2, wherein
コイルパターンの中心まで延長するとともに上記延長部
位の各コイルパターンを埋設するために上記条溝で囲繞
される磁性板の片方又は両方に、第１、第２のコイルパ
ターンの中心に対応する位置で直交するＸ状溝部を形成
し、第１、第２のコイルパターンの中心に対応する上記
両磁性板の位置に電極取り出し用孔を設けたことを特徴
とする請求項１又は２記載の平面トランス。4. An end of the magnetic plate surrounded by the groove for extending an inner end of the first and second coil patterns to the center of the coil pattern and burying each coil pattern in the extended portion. On both sides, X-shaped grooves are formed at positions corresponding to the centers of the first and second coil patterns, and electrodes are taken out at the positions of the two magnetic plates corresponding to the centers of the first and second coil patterns. 3. The flat transformer according to claim 1, wherein a hole is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04215928A JP3108538B2 (en) | 1992-08-13 | 1992-08-13 | Plane transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04215928A JP3108538B2 (en) | 1992-08-13 | 1992-08-13 | Plane transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0669037A JPH0669037A (en) | 1994-03-11 |
| JP3108538B2 true JP3108538B2 (en) | 2000-11-13 |
Family
ID=16680585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04215928A Expired - Lifetime JP3108538B2 (en) | 1992-08-13 | 1992-08-13 | Plane transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3108538B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3436638C2 (en) * | 1984-10-05 | 1992-10-08 | Bioferon biochemische Substanzen GmbH & Co, 7958 Laupheim | Use of preparations containing interferon-gamma (IFN-gamma) for the treatment of rheumatic diseases |
| US6573818B1 (en) * | 2000-03-31 | 2003-06-03 | Agere Systems, Inc. | Planar magnetic frame inductors having open cores |
-
1992
- 1992-08-13 JP JP04215928A patent/JP3108538B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0669037A (en) | 1994-03-11 |
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