JPH0831640A - Inductance and transformer - Google Patents
Inductance and transformerInfo
- Publication number
- JPH0831640A JPH0831640A JP6160807A JP16080794A JPH0831640A JP H0831640 A JPH0831640 A JP H0831640A JP 6160807 A JP6160807 A JP 6160807A JP 16080794 A JP16080794 A JP 16080794A JP H0831640 A JPH0831640 A JP H0831640A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- magnetic material
- terminal electrode
- conductor pattern
- primary
- 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.)
- Withdrawn
Links
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- Manufacturing Cores, Coils, And Magnets (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、フィルタ等に利用され
る平面型のインダクタンス、及びバラン（平衡−不平衡
変換回路）等の信号伝送用トランスとして利用される平
面型のトランスに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat type transformer used as a filter or the like and a flat type transformer used as a signal transmission transformer such as a balun (balanced-unbalanced conversion circuit). .
【０００２】[0002]
【従来の技術】従来の平面型のトランスの分解斜視図及
び斜視図を図６及び図７に示す。従来の平面型のトラン
スは、開口部３を有するプリント基板１６ａの表面に導
体パターンを渦巻き状に形成し１次コイル１４とし、１
次コイル１４の内側端末部に接続して設けられたスルー
ホール９ｂを介して、１次コイル１４と異なる面に形成
された引出し用導体パターン１７ａに接続することによ
り、１次コイル１４の内側端末部を導き出している。ま
た同様にして、別のプリント基板１６ｂに２次コイル１
５を形成し、２次コイル１５の内側端末部に接続して設
けられたスルーホール９ｂを介して、２次コイル１５と
異なる面に形成された引出し用導体パターン１７ｂに接
続することにより、２次コイル１５の内側端末部を導き
出している。そして、プリント基板１６ａ、１６ｂを重
ね合わせ、プリント基板１６ａ、１６ｂの開口部３に挿
通する突起部４を持つ箱状の磁性材５と、平板状の磁性
材６によってプリント基板１６ａ、１６ｂの上下両側か
ら１次、２次コイル１４、１５を覆うように配し、引出
し用導体パターン１７ａ、１７ｂの１次、２次コイル１
４、１５の内側端末部が接続されていない方の端末部
と、１次、２次コイル１４、１５の外側端末部とに、導
電性を有する電極取り出し用のピン状の端子１８を取り
付けることにより、平面型のトランスを形成している。2. Description of the Related Art An exploded perspective view and a perspective view of a conventional flat type transformer are shown in FIGS. In the conventional flat type transformer, the conductor pattern is formed in a spiral shape on the surface of the printed board 16a having the opening 3 to form the primary coil 14, and
By connecting to a lead-out conductor pattern 17a formed on a surface different from that of the primary coil 14 through a through hole 9b provided so as to be connected to the inner terminal of the secondary coil 14, the inner terminal of the primary coil 14 is connected. Leading the department. Similarly, the secondary coil 1 is mounted on another printed circuit board 16b.
5 is formed and is connected to a lead-out conductor pattern 17b formed on a surface different from that of the secondary coil 15 through a through hole 9b provided so as to be connected to the inner end portion of the secondary coil 15. The inner end of the next coil 15 is led out. Then, the printed circuit boards 16a and 16b are superposed on each other, and the box-shaped magnetic material 5 having the protrusions 4 which are inserted into the openings 3 of the printed circuit boards 16a and 16b and the flat magnetic material 6 are used to move the printed circuit boards 16a and 16b up and down. The primary and secondary coils 1 of the lead-out conductor patterns 17a and 17b are arranged so as to cover the primary and secondary coils 14 and 15 from both sides.
Attaching conductive pin-like terminals 18 for taking out electrodes to the outer end of the primary and secondary coils 14 and 15 to which the inner end of 4 and 15 is not connected. Thus, a flat type transformer is formed.
【０００３】また、従来のインダクタンスの一方式とし
て、平面型のインダクタンスがある。従来の平面型のイ
ンダクタンスは、上記の平面型のトランスにおいて、２
次コイル１５を形成したプリント基板１６ｂがない場合
である。このような構成により、平面型のインダクタン
スとなる。Further, as a conventional method of inductance, there is a planar inductance. The conventional planar type inductance is 2
This is a case where there is no printed circuit board 16b on which the next coil 15 is formed. With such a configuration, a planar inductance is obtained.
【０００４】[0004]
【発明の解決しようとする課題】ところが、上記の構成
のトランスでは、引出し用導体パターン１７ａ、１７ｂ
の１次、２次コイル１４、１５の内側端末部が接続され
ていない方の端末部と、１次、２次コイル１４、１５の
外側端末部とを、磁性材の外部に導き出すためのピン状
の端子１８を、プリント基板１６ａ、１６ｂに別途設け
なければならず、そのための工程が必要になるという問
題があった。However, in the transformer having the above structure, the lead-out conductor patterns 17a, 17b are provided.
For guiding the outer end portions of the primary and secondary coils 14 and 15 to which the inner end portions of the primary and secondary coils 14 and 15 are not connected and the outer end portions of the primary and secondary coils 14 and 15 to the outside of the magnetic material. There is a problem in that the terminal 18 in the shape of a strip must be separately provided on the printed boards 16a and 16b, and a process for that is required.
【０００５】本発明は、上記の点に鑑みて成されたもの
であり、その目的とするところは、ピン状の端子をプリ
ント基板に別途設けることなしに、磁性材の外部に１次
あるいは２次コイルの内側端末部及び外側端末部を導き
出すことのできる、安価で、製造容易な、平面型のイン
ダクタンス及びトランスを提供することにある。The present invention has been made in view of the above points, and an object of the present invention is to provide a primary or secondary magnetic material outside a magnetic material without separately providing a pin-shaped terminal on a printed circuit board. It is an object of the present invention to provide an inexpensive, easy-to-manufacture, planar-type inductance and transformer that can lead out the inner end portion and the outer end portion of the next coil.
【０００６】[0006]
【課題を解決するための手段】請求項１記載の発明は、
柔軟性を備えた絶縁性基材と、前記絶縁性基材に導体パ
ターンを形成しコイルとし、前記コイルを挟み込むよう
に配置した磁性材とを有するインダクタンスにおいて、
前記絶縁性基材に、前記磁性材の前記コイルに対向する
面から外面にかけて折り曲げることができる折り曲げ部
を設け、前記折り曲げ部に端子電極部を形成し、前記コ
イルの端末部を前記端子電極部に接続したことを特徴と
するものである。According to the first aspect of the present invention,
In an inductance having a flexible insulating base material and a coil formed by forming a conductor pattern on the insulating base material, and a magnetic material arranged so as to sandwich the coil,
The insulating base material is provided with a bent portion that can be bent from a surface of the magnetic material facing the coil to an outer surface, a terminal electrode portion is formed in the bent portion, and a terminal portion of the coil is connected to the terminal electrode portion. It is characterized by being connected to.
【０００７】請求項２記載の発明は、請求項１記載のイ
ンダクタンスにおいて、前記絶縁性基材に少なくとも１
つの開口部を設け、前記開口部に挿通する突起部を前記
磁性材に設けたことを特徴とするものである。According to a second aspect of the present invention, in the inductance according to the first aspect, the insulating base material is at least one.
One opening is provided, and a protrusion that is inserted into the opening is provided on the magnetic material.
【０００８】請求項３記載の発明は、請求項１または請
求項２記載のインダクタンスにおいて、前記磁性材の外
面に、前記折り曲げ部を収納する凹部を設け、前記折り
曲げ部を折り曲げたときに、前記折り曲げ部が前記凹部
に収納されるようにしたことを特徴とするものである。According to a third aspect of the present invention, in the inductance according to the first or second aspect, a recess for accommodating the bent portion is provided on an outer surface of the magnetic material, and when the bent portion is bent, the concave portion is formed. The bent portion is accommodated in the recess.
【０００９】請求項４記載の発明は、請求項１乃至請求
項３記載のインダクタンスにおいて、前記コイルを渦巻
き状に形成し、前記折り曲げ部の、前記コイルが形成さ
れた面と異なる面に第１及び第２の端子電極部を形成
し、前記コイルの外側端末部を、スルーホールを介して
前記第１の端子電極部に接続し、前記コイルと異なる面
に前記コイルの内側端末部を渦巻きの外側に導き出すた
めの引出し用導体パターンを形成し、前記引出し用導体
パターンの端末部を前記第２の端子電極部に接続し、前
記コイルの内側端末部を、スルーホールを介して前記引
出し用導体パターンの前記第２の端子電極部が接続され
ていない方の端末部に接続するようにしたことを特徴と
するものである。According to a fourth aspect of the present invention, in the inductance according to the first to third aspects, the coil is formed in a spiral shape, and a first portion is provided on a surface of the bent portion different from a surface on which the coil is formed. And a second terminal electrode portion is formed, the outer end portion of the coil is connected to the first terminal electrode portion through a through hole, and the inner end portion of the coil is wound on a surface different from the coil. A lead-out conductor pattern for leading out to the outside is formed, an end portion of the lead-out conductor pattern is connected to the second terminal electrode portion, and an inner end portion of the coil is connected to the lead-out conductor through a through hole. It is characterized in that the second terminal electrode portion of the pattern is connected to the terminal portion which is not connected.
【００１０】請求項５記載の発明は、請求項４記載のイ
ンダクタンスにおいて、前記渦巻き状に形成したコイル
の端末部と、前記第１及び第２の端子電極部と、前記引
出し用導体パターンの端末部とを、導体パターンのパタ
ーン幅より幅広に形成したことを特徴とするものであ
る。According to a fifth aspect of the present invention, there is provided the inductance according to the fourth aspect, wherein the coil-shaped coil end portion, the first and second terminal electrode portions, and the lead-out conductor pattern end portion. The portions are formed wider than the pattern width of the conductor pattern.
【００１１】請求項６記載の発明は、請求項１乃至請求
項５記載のコイルを２つ形成することにより、１次また
は２次コイルとしたことを特徴とするものである。The invention according to claim 6 is characterized in that a primary coil or a secondary coil is formed by forming two coils according to claim 1 to claim 5.
【００１２】請求項７記載の発明は、請求項６記載のト
ランスにおいて、前記１次及び２次コイルを共に渦巻き
状に形成し、前記絶縁性基材の一方の面に１次コイルを
配置し、前記絶縁性基材の他方の面に２次コイルを配置
し、前記１次及び２次コイルが対向するように配置した
ことを特徴とするものである。According to a seventh aspect of the present invention, in the transformer according to the sixth aspect, the primary and secondary coils are both formed in a spiral shape, and the primary coil is arranged on one surface of the insulating base material. A secondary coil is arranged on the other surface of the insulating base material so that the primary coil and the secondary coil are opposed to each other.
【００１３】[0013]
【作用】請求項１記載の発明によるインダクタンスは、
柔軟性のある絶縁性基材に、前記磁性材の前記コイルに
対向する面から外面にかけて折り曲げることができる折
り曲げ部を設け、前記折り曲げ部に端子電極部を形成
し、前記コイルの端末部を前記端子電極部に接続し、前
記折り曲げ部を磁性材の外面に沿って折り曲げることに
より、前記コイルの端末部を接続した前記端子電極部
を、前記磁性材の外面に導き出す構成であるため、前記
コイルの端末部に接続するための導電性を有するピン状
の端子を別途設ける必要がなくなる。The inductance according to the invention of claim 1 is
A flexible insulating base material is provided with a bent portion that can be bent from a surface of the magnetic material facing the coil to an outer surface, a terminal electrode portion is formed in the bent portion, and a terminal portion of the coil is provided. By connecting the terminal electrode portion and bending the bent portion along the outer surface of the magnetic material, the terminal electrode portion connected to the terminal portion of the coil is led out to the outer surface of the magnetic material. It is not necessary to separately provide a pin-shaped terminal having conductivity for connecting to the terminal portion of the.
【００１４】請求項２記載の発明によるインダクタンス
は、請求項１記載のインダクタンスにおいて、前記絶縁
性基材に少なくとも１つの開口部を設け、前記開口部に
挿通する突起部を前記磁性材に設け、前記磁性材で前記
コイルを挟み込み、磁心とし、コイルを挟み込む磁性材
は閉磁路を構成できるので、コイルが大きいインダクタ
ンス値を得ることができる。According to a second aspect of the present invention, in the inductance according to the first aspect, at least one opening is provided in the insulating base material, and a protrusion that is inserted into the opening is provided in the magnetic material. Since the coil is sandwiched by the magnetic material to form a magnetic core and the magnetic material sandwiching the coil can form a closed magnetic circuit, the coil can obtain a large inductance value.
【００１５】請求項３記載の発明によるインダクタンス
は、請求項１または請求項２記載のインダクタンスにお
いて、前記磁性材の外面に、前記折り曲げ部を収納する
凹部を設け、前記折り曲げ部を折り曲げたときに、前記
折り曲げ部が前記凹部に収納されるようにした構成であ
るため、前記磁性材に前記折り曲げ部による凹凸が生ず
ることがなく、かつ、凹部に収納するように前記折り曲
げ部を折り曲げるので、折り曲げの位置ずれが生じにく
くすることができる。According to a third aspect of the present invention, there is provided an inductance according to the first or second aspect, wherein a recess for accommodating the bent portion is provided on an outer surface of the magnetic material, and the bent portion is bent. Since the bent portion is configured to be housed in the recess, the magnetic material does not have unevenness due to the bent portion, and the bent portion is bent so as to be housed in the recess. It is possible to make it difficult for the displacement of the position.
【００１６】請求項４記載の発明によるインダクタンス
は、請求項１乃至請求項３記載のインダクタンスにおい
て、前記コイルを渦巻き状に形成し、前記渦巻き状に形
成したコイルの内側端末部は、スルーホールを介して引
出し用導体パターンにより渦巻きの外側に導き出す構成
であるので、前記引出し用導体パターンは、前記渦巻き
状に形成されたコイルの内側端末部以外には接すること
がないようにすることができる。According to a fourth aspect of the present invention, in the inductance according to the first to third aspects, the coil is formed in a spiral shape, and an inner end portion of the spirally formed coil has a through hole. Since the lead-out conductor pattern is led out to the outside of the spiral by means of the lead-out conductor pattern, the lead-out conductor pattern can be prevented from contacting other than the inner end portion of the spirally formed coil.
【００１７】請求項５記載の発明によるインダクタンス
は、請求項４記載のインダクタンスにおいて、前記渦巻
き状に形成したコイルの端末部と、前記折り曲げ部の、
前記コイルが形成された面と異なる面に形成された第１
及び第２の端子電極部と、前記引出し用導体パターンの
端末部とを、導体パターンのパターン幅より幅広に形成
したので、インダクタンスを回路基板上に接続する際の
インダクタンスの位置ずれによる回路への未接続または
接続不良をなくすことができ、また、前記折り曲げ部
を、前記磁性材の外面に沿って折り曲げたときに、前記
第１および第２の端子電極部が断線することをなくすこ
とができる。According to a fifth aspect of the present invention, there is provided an inductance according to the fourth aspect, wherein the coil end portion formed in the spiral shape and the bent portion are
A first surface formed on a surface different from the surface on which the coil is formed;
Since the second terminal electrode portion and the terminal portion of the lead-out conductor pattern are formed wider than the pattern width of the conductor pattern, it is possible to prevent the circuit from being displaced due to the displacement of the inductance when connecting the inductance on the circuit board. It is possible to eliminate unconnection or poor connection, and to prevent disconnection of the first and second terminal electrode portions when the bent portion is bent along the outer surface of the magnetic material. .
【００１８】請求項６記載の発明によるトランスは、請
求項１乃至請求項５記載のコイルを２つ形成し、１次ま
たは２次コイルとすることにより、トランスを形成して
いる。According to a sixth aspect of the present invention, a transformer is formed by forming two coils according to the first to fifth aspects and using them as a primary coil or a secondary coil.
【００１９】請求項７記載の発明によるトランスは、請
求項６記載のトランスにおいて、前記１次及び２次コイ
ルを共に渦巻き状に形成し、前記絶縁性基材の一方の面
に１次コイルを配置し、前記絶縁性基材の他方の面に２
次コイルを配置し、前記１次及び２次コイルが対向する
ように配置したことにより、１次、２次コイル間の電磁
結合を高めることができる。A transformer according to a seventh aspect of the present invention is the transformer according to the sixth aspect, wherein the primary coil and the secondary coil are both formed in a spiral shape, and the primary coil is provided on one surface of the insulating base material. And place 2 on the other side of the insulating substrate.
By arranging the secondary coil so that the primary coil and the secondary coil are opposed to each other, electromagnetic coupling between the primary coil and the secondary coil can be enhanced.
【００２０】[0020]
【実施例】以下、本発明の一実施例について図面に基づ
き説明する。図１及び図２は、本発明の一実施例に係る
平面型のインダクタンスを示す分解斜視図及び斜視図で
ある。柔軟性のある絶縁性基材として、厚さ数十μｍの
ポリイミド等のフレキシブル基板１を用いた。フレキシ
ブル基板１に渦巻き状の導体パターンを形成してコイル
２とし、フレキシブル基板１のコイル２の内側の部分に
開口部３を設け、その開口部３に挿通する突起部４を有
するフェライト等からなる箱状の磁性材５と平板状の磁
性材６とでフレキシブル基板１を上下から挟み込むとと
もに、コイル２を覆うように配置し磁心としている。従
って、コイル２は閉磁路を形成した磁性材に覆われるた
め、大きいインダクタンス値を得ることができる。な
お、コイル２はフレキシブル基板１に銅膜を積層させた
後エッチングによって形成する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are an exploded perspective view and a perspective view showing a planar inductance according to an embodiment of the present invention. As a flexible insulating base material, a flexible substrate 1 made of polyimide or the like having a thickness of several tens of μm was used. A coil 2 is formed by forming a spiral conductor pattern on the flexible substrate 1, and an opening 3 is provided inside the coil 2 of the flexible substrate 1 and is made of ferrite or the like having a protrusion 4 that is inserted into the opening 3. The flexible substrate 1 is sandwiched between the box-shaped magnetic material 5 and the flat magnetic material 6 from above and below, and the coil 2 is arranged so as to cover the coil 2 to form a magnetic core. Therefore, since the coil 2 is covered with the magnetic material forming the closed magnetic path, a large inductance value can be obtained. The coil 2 is formed by laminating a copper film on the flexible substrate 1 and then etching.
【００２１】フレキシブル基板１には、磁性材６のコイ
ル２に対向する面から外面にかけて折り曲げることがで
きる折り曲げ部７を設け、折り曲げ部７の、コイル２が
形成された面とは異なる面に、第１及び第２の端子電極
部８ａ、８ｂを形成する。端子電極部８ａ、８ｂには、
コイル２の端末部を接続し、折り曲げ部７を磁性材６の
外面に沿って折り曲げたときに、端子電極部８ａ、８ｂ
が磁性材６の外面に現れ、コイル２の端末部を磁性材６
の外面に導き出せるように形成している。コイル２の外
側端末部は、スルーホール９ａを介して端子電極部８ａ
に接続される。フレキシブル基板１のコイル２の形成さ
れた面と異なる面に、コイル２の内側端末部を渦巻きの
外側に導き出すための引出し用導体パターン１０を形成
し、コイル２の内側端末部は、スルーホール９ｂを介し
て引出し用導体パターン１０の端末部に接続される。引
出し用導体パターン１０のコイル２の内側端末部が接続
されていない方の端末部は、端子電極部８ｂに接続され
ている。磁性材６には、折り曲げ部７を収納する凹部１
１が形成され、図２に示すように、折り曲げ部７を磁性
材６の外面に沿って折り曲げたことによる磁性材６の凹
凸が生ずることをなくすと共に、折り曲げの位置ずれを
生じにくくすることができる。折り曲げ部７と磁性材６
とは、接着剤等によって接着される。また、磁性材５に
は、折り曲げ部７が位置する部分に切り込み部１２が形
成される。The flexible substrate 1 is provided with a bending portion 7 that can be bent from the surface of the magnetic material 6 facing the coil 2 to the outer surface. The bending portion 7 has a surface different from the surface on which the coil 2 is formed. The first and second terminal electrode portions 8a and 8b are formed. In the terminal electrode portions 8a and 8b,
When the terminal portions of the coil 2 are connected and the bent portion 7 is bent along the outer surface of the magnetic material 6, the terminal electrode portions 8a, 8b
Appear on the outer surface of the magnetic material 6, and the end portion of the coil 2 is
It is formed so that it can be guided to the outer surface of. The outer terminal portion of the coil 2 is connected to the terminal electrode portion 8a through the through hole 9a.
Connected to. On a surface of the flexible substrate 1 different from the surface on which the coil 2 is formed, a lead-out conductor pattern 10 for guiding the inner end portion of the coil 2 to the outside of the spiral is formed, and the inner end portion of the coil 2 has a through hole 9b. Is connected to the end of the lead-out conductor pattern 10. The end portion of the lead-out conductor pattern 10 to which the inner end portion of the coil 2 is not connected is connected to the terminal electrode portion 8b. The magnetic material 6 has a concave portion 1 for accommodating the bent portion 7.
1 is formed, and as shown in FIG. 2, it is possible to prevent unevenness of the magnetic material 6 caused by bending the bent portion 7 along the outer surface of the magnetic material 6 and to prevent misalignment of the bending. it can. Bent part 7 and magnetic material 6
And are bonded by an adhesive or the like. Further, the magnetic material 5 is provided with a cut portion 12 at a portion where the bent portion 7 is located.
【００２２】なお、凹部１１は、本実施例では磁性材６
に形成されているが、必ずしも磁性材６に形成されてい
る必要はなく、磁性材５または磁性材５、６各々に形成
されてもよい。The recess 11 is made of the magnetic material 6 in this embodiment.
However, the magnetic material 5 does not necessarily have to be formed on the magnetic material 6, and may be formed on the magnetic material 5 or each of the magnetic materials 5 and 6.
【００２３】コイル２の外側端末部のスルーホールを介
した部分と、引出し用導体パターン１０の端子電極部８
ｂと接続するほうの端末部には、導体パターンのパター
ン幅（数十μｍ）より幅広（数ｍｍ程度）の電極部１３
が形成されており、また、端子電極部８ａ、８ｂを、導
体パターンのパターン幅（数十μｍ）より幅広（数ｍｍ
程度）に形成することにより、インダクタンスを回路基
板上に接続する際のインダクタンスの位置ずれによる回
路への未接続または接続不良をなくすことができ、更
に、折り曲げ部７を、磁性材６の外面に沿って折り曲げ
たときに、端子電極部８ａ、８ｂが断線しにくくなる。A portion of the coil 2 on the outside end portion through the through hole and the terminal electrode portion 8 of the lead-out conductor pattern 10.
In the end portion that is connected to b, the electrode portion 13 that is wider (several mm) than the pattern width (several tens μm) of the conductor pattern.
And the terminal electrode portions 8a and 8b are wider (several mm) than the pattern width (several tens μm) of the conductor pattern.
By forming the inductors on the circuit board, it is possible to eliminate unconnection or connection failure to the circuit due to displacement of the inductance when connecting the inductance on the circuit board. Furthermore, the bent portion 7 is formed on the outer surface of the magnetic material 6. When bent along, the terminal electrode portions 8a and 8b are less likely to break.
【００２４】なお、磁性材５、６としては、Ｉ型とＥ
型、Ｌ型とＦ型、コ字型とＴ字型の組み合わせ等も考え
られる。また、本実施例では、コイル２の形状として
は、角状の渦巻き形状としたが、必ずしも角状になって
いる必要はなく、円形の渦巻き形状等でもよい。The magnetic materials 5 and 6 are I type and E type.
A combination of L-type, F-type, U-shaped and T-shaped, etc. is also conceivable. Further, in the present embodiment, the coil 2 has a square spiral shape, but the coil 2 need not necessarily have a square shape, and may have a circular spiral shape or the like.
【００２５】本実施例によれば、端子電極部８ａ、８ｂ
を備えた折り曲げ部７を、磁性材６の外面に沿って折り
曲げ、端子電極部８ａ、８ｂを磁性材の外面に現れるよ
うにし、端子電極部８ａ、８ｂに接続したコイル２の端
末部を磁性材の外部に導き出すようにしたので、図６で
示したピン状の端子１８を用いることなしに、コイル２
の端末部を磁性材５、６の外部に導き出すことができ、
かつ、磁性材６には折り曲げ部７を収納する凹部１１が
形成され、折り曲げ部７を磁性材６の外面に沿って折り
曲げたことによる磁性材６の凹凸をなくすことができる
ので、回路上に表面実装あるいは自動実装がし易くな
る。According to this embodiment, the terminal electrode portions 8a, 8b
The bent portion 7 provided with is bent along the outer surface of the magnetic material 6 so that the terminal electrode portions 8a and 8b appear on the outer surface of the magnetic material, and the terminal portion of the coil 2 connected to the terminal electrode portions 8a and 8b is made magnetic. Since it is led out to the outside of the material, the coil 2 can be used without using the pin-shaped terminal 18 shown in FIG.
Can be led out to the outside of the magnetic material 5, 6,
Further, the magnetic material 6 is formed with a recess 11 for accommodating the bent portion 7, and since the unevenness of the magnetic material 6 caused by bending the bent portion 7 along the outer surface of the magnetic material 6 can be eliminated, it is possible to eliminate the unevenness on the circuit. Surface mounting or automatic mounting becomes easy.
【００２６】図３及び図４は、本発明の他の実施例に係
る平面型のトランスを示す分解斜視図及び斜視図であ
る。柔軟性のある絶縁性基材として、厚さ数十μｍのポ
リイミド等のフレキシブル基板１を用いた。フレキシブ
ル基板１の一方の面に渦巻き状の導体パターンを形成し
１次コイル１４とし、同様にして他方の面に２次コイル
１５を形成して、磁性材５、６で１次、２次コイル１
４、１５を挟み込むように配置して磁心としている。従
って、１次、２次コイル１４、１５は閉磁路を形成した
磁性材５、６に覆われるため、大きいインダクタンス値
を得ることができる。なお、１次、２次コイル１４、１
５は、フレキシブル基板１に銅膜を積層させた後エッチ
ングによって形成する。3 and 4 are an exploded perspective view and a perspective view showing a flat type transformer according to another embodiment of the present invention. As a flexible insulating base material, a flexible substrate 1 made of polyimide or the like having a thickness of several tens of μm was used. A spiral conductor pattern is formed on one surface of the flexible substrate 1 to form a primary coil 14, and a secondary coil 15 is formed on the other surface in the same manner. 1
The magnetic cores are arranged so as to sandwich 4 and 15. Therefore, since the primary and secondary coils 14 and 15 are covered with the magnetic materials 5 and 6 forming the closed magnetic path, a large inductance value can be obtained. The primary and secondary coils 14, 1
5 is formed by stacking a copper film on the flexible substrate 1 and then etching.
【００２７】図５は、図３に示すＸ−Ｘ’での断面図で
ある。１次、２次コイル１４、１５は互いにフレキシブ
ル基板の厚さ程度離れるだけであり、対向配置させるこ
とで１次、２次コイル間の電磁結合が高くなる。FIG. 5 is a sectional view taken along line XX 'shown in FIG. The primary and secondary coils 14 and 15 are separated from each other only by the thickness of the flexible substrate, and when they are opposed to each other, electromagnetic coupling between the primary and secondary coils is increased.
【００２８】なお、本実施例では１次、２次コイルを１
枚のフレキシブル基板の両面に各々形成したが、多層基
板の２つの層に形成してもよい。In this embodiment, the primary and secondary coils are
Although each flexible substrate is formed on both sides, it may be formed on two layers of a multilayer substrate.
【００２９】フレキシブル基板１には、磁性材６の１次
コイル１４に対向する面から外面にかけて折り曲げるこ
とができる折り曲げ部７を設け、折り曲げ部７の、２次
コイル１５が形成されている方の面に、端子電極部８
ａ、８ｂを形成している。１次コイル１４の外側端末部
は、スルーホール９ａを介して端子電極部８ａに接続
し、１次コイル１４の内側端末部は、スルーホール９ｂ
を介して引出し用導体パターン１０に接続し、引出し用
導体パターン１０は、端子電極部８ｂに接続している。
２次コイル１５の外側端末部は、端子電極部８ａに接続
し、２次コイル１５の内側端末部は、スルーホール９ｂ
を介して引出し用導体パターン１０に接続し、スルーホ
ール９ｃを介して端子電極部８ｂに接続している。The flexible substrate 1 is provided with a bending portion 7 that can be bent from the surface of the magnetic material 6 facing the primary coil 14 to the outer surface, and the bending portion 7 of the secondary coil 15 is formed. On the surface, the terminal electrode portion 8
a and 8b are formed. The outer end portion of the primary coil 14 is connected to the terminal electrode portion 8a via the through hole 9a, and the inner end portion of the primary coil 14 is connected to the through hole 9b.
Is connected to the lead-out conductor pattern 10 through, and the lead-out conductor pattern 10 is connected to the terminal electrode portion 8b.
The outer end portion of the secondary coil 15 is connected to the terminal electrode portion 8a, and the inner end portion of the secondary coil 15 is connected to the through hole 9b.
To the lead-out conductor pattern 10 and via the through hole 9c to the terminal electrode portion 8b.
【００３０】磁性材６には、折り曲げ部７を収納する凹
部１１を形成し、図４に示すように、折り曲げ部７を磁
性材６の外面に沿って折り曲げたことによる磁性材６の
凹凸が生ずることがなくなり、折り曲げの位置ずれを生
じにくくすることができる。折り曲げ部７と磁性材６と
は、接着剤等によって接着する。また、磁性材５には、
折り曲げ部７が位置する部分に切り込み部１２を形成し
ている。A concave portion 11 for accommodating the bent portion 7 is formed in the magnetic material 6, and as shown in FIG. 4, unevenness of the magnetic material 6 caused by bending the bent portion 7 along the outer surface of the magnetic material 6 is formed. It will not occur, and it is possible to make it difficult for displacement of the bending position to occur. The bent portion 7 and the magnetic material 6 are bonded to each other with an adhesive or the like. The magnetic material 5 includes
The notch 12 is formed in the portion where the bent portion 7 is located.
【００３１】１次コイル１４の外側端末部のスルーホー
ル９ａを介した部分と２次コイル１５の外側端末部と、
引出し用導体パターン１０の端子電極部８ｂと接続する
ほうの端末部には、導体パターンのパターン幅（数十μ
ｍ）より幅広（数ｍｍ程度）の電極部１３が形成されて
おり、また、端子電極部８ａ、８ｂを、パターン幅（数
十μｍ）より幅広（数ｍｍ程度）に形成することによ
り、インダクタンスを回路基板上に接続する際のインダ
クタンスの位置ずれによる回路への未接続または接続不
良をなくすことができ、更に、折り曲げ部７を、磁性材
６の外面に沿って折り曲げたときに、端子電極部８ａ、
８ｂが断線することがなくなる。The portion of the outer coil of the primary coil 14 through the through hole 9a and the outer coil of the secondary coil 15,
The width of the conductor pattern (several tens of μ
m), the electrode portion 13 wider (about several mm) is formed, and by forming the terminal electrode portions 8a and 8b wider (about several mm) than the pattern width (several tens of μm), the inductance is reduced. It is possible to eliminate unconnected or defective connection to the circuit due to the displacement of the inductance when connecting the circuit board to the circuit board. Furthermore, when the bent portion 7 is bent along the outer surface of the magnetic material 6, the terminal electrode Part 8a,
8b is not broken.
【００３２】本実施例によれば、端子電極部８ａ、８ｂ
を備えた折り曲げ部７を、磁性材６の外面に沿って折り
曲げ、端子電極部８ａ、８ｂを磁性材の外面に現れるよ
うにし、端子電極部８ａ、８ｂに接続した１次、２次コ
イルの端末部を磁性材の外部に導き出すようにしたので
図６で示したピン状の端子１８を用いることなしに、１
次、２次コイル１４、１５の端末部を磁性材５、６の外
部に導き出すことができ、かつ、磁性材６には折り曲げ
部７を収納する凹部１１が形成され、折り曲げ部７を磁
性材６の外面に沿って折り曲げたことによる磁性材６の
凹凸をなくすことができるので、回路上に表面実装ある
いは自動実装がし易くなる。According to this embodiment, the terminal electrode portions 8a, 8b
The bent portion 7 provided with is bent along the outer surface of the magnetic material 6 so that the terminal electrode portions 8a and 8b appear on the outer surface of the magnetic material, and the primary and secondary coils connected to the terminal electrode portions 8a and 8b are connected. Since the terminal portion is led out to the outside of the magnetic material, it is possible to use the pin-shaped terminal 18 shown in FIG.
The end portions of the secondary and secondary coils 14 and 15 can be led out to the outside of the magnetic materials 5 and 6, and the magnetic material 6 is provided with a recess 11 for accommodating the bent portion 7. Since the unevenness of the magnetic material 6 due to bending along the outer surface of 6 can be eliminated, it becomes easy to perform surface mounting or automatic mounting on the circuit.
【００３３】[0033]
【発明の効果】請求項１記載の発明によれば、柔軟性の
ある絶縁性基材に、磁性材のコイルに対向する面から外
面にかけて折り曲げることができる折り曲げ部を形成
し、前記折り曲げ部に端子電極部を形成して、前記コイ
ルの端末部と前記端子電極部を接続して、前記折り曲げ
部を前記磁性材の外面に沿って折り曲げ、前記端子電極
部を磁性材の外面に現れるようにし、前記コイルの端末
部を前記磁性材の外部に導き出す構成であるため、前記
コイルの端末部を磁性材の外部に導き出すための導電性
を有するピン状の端子を別途設ける必要がなくなり、イ
ンダクタンスを製作するための工程を減らすことがで
き、安価で、製造容易な、平面型のインダクタンスを提
供できた。According to the invention described in claim 1, the flexible insulating base material is provided with a bent portion that can be bent from the surface of the magnetic material facing the coil to the outer surface. A terminal electrode portion is formed, the terminal portion of the coil is connected to the terminal electrode portion, the bent portion is bent along the outer surface of the magnetic material, and the terminal electrode portion is exposed on the outer surface of the magnetic material. Since the terminal portion of the coil is led out to the outside of the magnetic material, it is not necessary to separately provide an electrically conductive pin-shaped terminal for leading the terminal portion of the coil to the outside of the magnetic material, thereby reducing the inductance. The number of manufacturing steps can be reduced, and an inexpensive, easy-to-manufacture planar inductance can be provided.
【００３４】請求項２記載の発明によれば、請求項１記
載のインダクタンスにおいて、前記磁性材に設けた突起
部が、前記絶縁性基材に設けた開口部を挿通して前記コ
イルを覆い、磁心とした構成であり、コイルを覆う磁性
材は閉磁路を構成するので、コイルは大きいインダクタ
ンス値を実現できる。従って、コイルを大型化すること
なく所望のインダクタンス値を得ることができる。According to a second aspect of the invention, in the inductance according to the first aspect, the protrusion provided on the magnetic material is inserted through the opening provided in the insulating base material to cover the coil, Since the magnetic material covering the coil forms a closed magnetic circuit, the coil can realize a large inductance value. Therefore, a desired inductance value can be obtained without increasing the size of the coil.
【００３５】請求項３記載の発明によれば、請求項１ま
たは請求項２記載のインダクタンスにおいて、前記磁性
材の外面に、前記折り曲げ部を収納する凹部を設け、前
記凹部に前記折り曲げ部を収納する構成であるため、前
記磁性材に前記折り曲げ部による凹凸が生ずることがな
く、かつ、凹部に収納するように前記折り曲げ部を折り
曲げるので、折り曲げの位置ずれを生じにくくすること
ができ、回路上に表面実装あるいは自動実装がし易くな
り、信頼性を向上できる。According to a third aspect of the invention, in the inductance according to the first or second aspect, a recess for accommodating the bent portion is provided on an outer surface of the magnetic material, and the bent portion is accommodated in the recess. Since the magnetic material does not have unevenness due to the bent portion, and the bent portion is bent so as to be housed in the concave portion, it is possible to prevent the displacement of the bending from occurring. Surface mounting or automatic mounting becomes easier and reliability can be improved.
【００３６】請求項４記載の発明によれば、請求項１乃
至請求項３記載のインダクタンスにおいて、前記コイル
を渦巻き状に形成し、前記渦巻き状に形成したコイルの
内側端末部を、スルーホールを介して引出し用導体パタ
ーンにより渦巻きの外側に導き出す構成であるので、前
記引出し用導体パターンは、前記コイルを渦巻き状に形
成しても前記渦巻き状に形成したコイルの内側端末部以
外には接することがないようにすることができ、前記渦
巻き状に形成したコイルと前記引出し用導体パターンと
が短絡することを防止できる。According to a fourth aspect of the present invention, in the inductance according to the first to third aspects, the coil is formed in a spiral shape, and an inner end portion of the spirally formed coil is formed with a through hole. Since the lead-out conductor pattern is guided to the outside of the spiral by means of the lead-out conductor pattern, even if the lead-out conductor pattern is formed in the spiral shape, it must be in contact with the coil except for the inner end portion of the coil formed in the spiral shape. It is possible to prevent short circuit between the spirally formed coil and the lead-out conductor pattern.
【００３７】請求項５記載の発明は、請求項４記載のイ
ンダクタンスにおいて、前記渦巻き状に形成したコイル
の端末部と、前記端子電極部と、前記引出し用導体パタ
ーンの端末部とを、導体パターンのパターン幅より幅広
に形成した構成であるため、インダクタンスを回路基板
上に接続する際のインダクタンスの位置ずれによる回路
への未接続または接続不良をなくすことができ、また、
前記折り曲げ部を、前記磁性材の外面に沿って折り曲げ
たときに、前記第１および第２の端子電極部が断線する
ことがなくなり、信頼性を向上できる。According to a fifth aspect of the present invention, in the inductance according to the fourth aspect, a terminal portion of the coil formed in the spiral shape, the terminal electrode portion, and a terminal portion of the lead-out conductor pattern are formed by a conductor pattern. Since it is formed to be wider than the pattern width of, it is possible to eliminate unconnected or defective connection to the circuit due to displacement of the inductance when connecting the inductance on the circuit board.
When the bent portion is bent along the outer surface of the magnetic material, the first and second terminal electrode portions are not broken, and reliability can be improved.
【００３８】請求項６記載の発明は、請求項１乃至請求
項５記載の絶縁性基材に形成したコイルを２つ形成し、
１次または２次コイルとすることにより、トランスを構
成し、請求項１乃至請求項５記載の発明の効果と同様の
効果をトランスにおいても得ることができる。According to a sixth aspect of the present invention, two coils formed on the insulating base material according to the first to fifth aspects are formed,
By using a primary coil or a secondary coil, a transformer is configured, and the same effects as the effects of the invention described in claims 1 to 5 can be obtained in the transformer.
【００３９】請求項７記載の発明は、請求項６記載のト
ランスにおいて、前記１次、２次コイルを共に渦巻き状
に形成し、前記絶縁性基材の一方の面に１次コイルを配
置し、前記絶縁性基材の他方の面に２次コイルを配置
し、前記１次及び２次コイルが対向するように配置する
ことにより、１次、２次コイル間の電磁結合を高めるこ
とができ、従って、結合係数を大きくすることができ
る。According to a seventh aspect of the present invention, in the transformer according to the sixth aspect, the primary and secondary coils are both spirally formed, and the primary coil is arranged on one surface of the insulating base material. By arranging the secondary coil on the other surface of the insulating base material and arranging the primary coil and the secondary coil so as to face each other, electromagnetic coupling between the primary coil and the secondary coil can be enhanced. Therefore, the coupling coefficient can be increased.
【図１】本発明の一実施例に係る平面型のインダクタン
スを示す分解斜視図である。FIG. 1 is an exploded perspective view showing a planar type inductance according to an embodiment of the present invention.
【図２】同上に係る斜視図である。FIG. 2 is a perspective view of the above.
【図３】本発明の他の実施例に係る平面型のトランスを
示す分解斜視図である。FIG. 3 is an exploded perspective view showing a flat type transformer according to another embodiment of the present invention.
【図４】同上に係る斜視図である。FIG. 4 is a perspective view of the above.
【図５】図３に示すＸ−Ｘ’での断面図である。5 is a cross-sectional view taken along line X-X ′ shown in FIG.
【図６】従来例に係る平面型のトランスを示す分解斜視
図である。FIG. 6 is an exploded perspective view showing a flat type transformer according to a conventional example.
【図７】同上に係る斜視図である。FIG. 7 is a perspective view of the above.
１ フレキシブル基板 ２ コイル ３ 開口部 ４ 突起部 ５、６ 磁性材 ７ 折り曲げ部 ８ａ、８ｂ 端子電極部 ９ａ、９ｂ、９ｃ スルーホール １０ 引出し用導体パターン １１ 凹部 １２ 切り込み部 １３ 電極部 １４ １次コイル １５ ２次コイル １６ａ、１６ｂ プリント基板 １７ａ、１７ｂ 引出し用導体パターン １８ ピン状の端子 DESCRIPTION OF SYMBOLS 1 Flexible substrate 2 Coil 3 Opening 4 Protrusion 5 and 6 Magnetic material 7 Bending 8a and 8b Terminal electrode 9a, 9b and 9c Through hole 10 Leading conductor pattern 11 Recess 12 Cut Notch 13 Electrode 14 Primary coil 15 Secondary coil 16a, 16b Printed circuit board 17a, 17b Lead-out conductor pattern 18 Pin-shaped terminal
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成７年１月６日[Submission date] January 6, 1995
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】全文[Correction target item name] Full text
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【書類名】 明細書[Document name] Statement
【発明の名称】 インダクタンス及びトランスTitle: Inductance and transformer
【特許請求の範囲】[Claims]
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【産業上の利用分野】本発明は、フィルタ等に利用され
る平面型のインダクタンス、及びバラン（平衡−不平衡
変換回路）等の信号伝送用トランスとして利用される平
面型のトランスに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat type transformer used as a filter or the like and a flat type transformer used as a signal transmission transformer such as a balun (balanced-unbalanced conversion circuit). .
【０００２】[0002]
【従来の技術】従来の平面型のトランスの分解斜視図及
び斜視図を図６及び図７に示す。従来の平面型のトラン
スは、開口部３を有するプリント基板１６ａの表面に導
体パターンを渦巻き状に形成し１次コイル１４とし、１
次コイル１４の内側端末部に接続して設けられたスルー
ホール９ｂを介して、１次コイル１４と異なる面に形成
された引出し用導体パターン１７ａに接続することによ
り、１次コイル１４の内側端末部を導き出している。ま
た同様にして、別のプリント基板１６ｂに２次コイル１
５を形成し、２次コイル１５の内側端末部に接続して設
けられたスルーホール９ｂを介して、２次コイル１５と
異なる面に形成された引出し用導体パターン１７ｂに接
続することにより、２次コイル１５の内側端末部を導き
出している。そして、プリント基板１６ａ、１６ｂを重
ね合わせ、プリント基板１６ａ、１６ｂの開口部３に挿
通する突起部４を持つ箱状の磁性材５と、平板状の磁性
材６によってプリント基板１６ａ、１６ｂの上下両側か
ら１次、２次コイル１４、１５を覆うように配し、引出
し用導体パターン１７ａ、１７ｂの１次、２次コイル１
４、１５の内側端末部が接続されていない方の端末部
と、１次、２次コイル１４、１５の外側端末部とに、導
電性を有する電極取り出し用のピン状の端子１８を取り
付けることにより、平面型のトランスを形成している。2. Description of the Related Art An exploded perspective view and a perspective view of a conventional flat type transformer are shown in FIGS. In the conventional flat type transformer, the conductor pattern is formed in a spiral shape on the surface of the printed board 16a having the opening 3 to form the primary coil 14, and
By connecting to a lead-out conductor pattern 17a formed on a surface different from that of the primary coil 14 through a through hole 9b provided so as to be connected to the inner terminal of the secondary coil 14, the inner terminal of the primary coil 14 is connected. Leading the department. Similarly, the secondary coil 1 is mounted on another printed circuit board 16b.
5 is formed and is connected to a lead-out conductor pattern 17b formed on a surface different from that of the secondary coil 15 through a through hole 9b provided so as to be connected to the inner end portion of the secondary coil 15. The inner end of the next coil 15 is led out. Then, the printed circuit boards 16a and 16b are superposed on each other, and the box-shaped magnetic material 5 having the protrusions 4 which are inserted into the openings 3 of the printed circuit boards 16a and 16b and the flat magnetic material 6 are used to move the printed circuit boards 16a and 16b up and down. The primary and secondary coils 1 of the lead-out conductor patterns 17a and 17b are arranged so as to cover the primary and secondary coils 14 and 15 from both sides.
Attaching conductive pin-like terminals 18 for taking out electrodes to the outer end of the primary and secondary coils 14 and 15 to which the inner end of 4 and 15 is not connected. Thus, a flat type transformer is formed.
【０００３】また、従来のインダクタンスの一方式とし
て、平面型のインダクタンスがある。従来の平面型のイ
ンダクタンスは、上記の平面型のトランスにおいて、２
次コイル１５を形成したプリント基板１６ｂがない場合
である。このような構成により、平面型のインダクタン
スとなる。Further, as a conventional method of inductance, there is a planar inductance. The conventional planar type inductance is 2
This is a case where there is no printed circuit board 16b on which the next coil 15 is formed. With such a configuration, a planar inductance is obtained.
【０００４】[0004]
【発明の解決しようとする課題】ところが、上記の構成
のトランスでは、引出し用導体パターン１７ａ、１７ｂ
の１次、２次コイル１４、１５の内側端末部が接続され
ていない方の端末部と、１次、２次コイル１４、１５の
外側端末部とを、磁性材の外部に導き出すためのピン状
の端子１８を、プリント基板１６ａ、１６ｂに別途設け
なければならず、そのための工程が必要になるという問
題があった。However, in the transformer having the above structure, the lead-out conductor patterns 17a, 17b are provided.
For guiding the outer end portions of the primary and secondary coils 14 and 15 to which the inner end portions of the primary and secondary coils 14 and 15 are not connected and the outer end portions of the primary and secondary coils 14 and 15 to the outside of the magnetic material. There is a problem in that the terminal 18 in the shape of a strip must be separately provided on the printed boards 16a and 16b, and a process for that is required.
【０００５】本発明は、上記の点に鑑みて成されたもの
であり、その目的とするところは、ピン状の端子をプリ
ント基板に別途設けることなしに、磁性材の外部に１次
あるいは２次コイルの内側端末部及び外側端末部を導き
出すことのできる、安価で、製造容易な、平面型のイン
ダクタンス及びトランスを提供することにある。The present invention has been made in view of the above points, and an object of the present invention is to provide a primary or secondary magnetic material outside a magnetic material without separately providing a pin-shaped terminal on a printed circuit board. It is an object of the present invention to provide an inexpensive, easy-to-manufacture, planar-type inductance and transformer that can lead out the inner end portion and the outer end portion of the next coil.
【０００６】[0006]
【課題を解決するための手段】請求項１記載の発明は、
柔軟性を備えた絶縁性基材と、前記絶縁性基材に導体パ
ターンを形成しコイルとし、前記コイルを挟み込むよう
に配置した磁性材とを有するインダクタンスにおいて、
前記絶縁性基材に、前記磁性材の前記絶縁性基材に対向
する面から外面にかけて折り曲げることができる折り曲
げ部を設け、前記折り曲げ部に端子電極部を形成し、前
記コイルの端末部を前記端子電極部に接続したことを特
徴とするものである。According to the first aspect of the present invention,
In an inductance having a flexible insulating base material and a coil formed by forming a conductor pattern on the insulating base material, and a magnetic material arranged so as to sandwich the coil,
The insulating base material is provided with a bent portion that can be bent from a surface of the magnetic material facing the insulating base material to an outer surface, a terminal electrode portion is formed in the bent portion, and a terminal portion of the coil is provided. It is characterized in that it is connected to a terminal electrode portion.
【０００７】請求項２記載の発明は、請求項１記載のイ
ンダクタンスにおいて、前記絶縁性基材に少なくとも１
つの開口部を設け、前記開口部に挿通する突起部を前記
磁性材に設けたことを特徴とするものである。According to a second aspect of the present invention, in the inductance according to the first aspect, the insulating base material is at least one.
One opening is provided, and a protrusion that is inserted into the opening is provided on the magnetic material.
【０００８】請求項３記載の発明は、請求項１または請
求項２記載のインダクタンスにおいて、前記磁性材の外
面に、前記折り曲げ部を収納する凹部を設け、前記折り
曲げ部を折り曲げたときに、前記折り曲げ部が前記凹部
に収納されるようにしたことを特徴とするものである。According to a third aspect of the present invention, in the inductance according to the first or second aspect, a recess for accommodating the bent portion is provided on an outer surface of the magnetic material, and when the bent portion is bent, the concave portion is formed. The bent portion is accommodated in the recess.
【０００９】請求項４記載の発明は、請求項１乃至請求
項３記載のインダクタンスにおいて、前記コイルを渦巻
き状に形成し、前記折り曲げ部に第１及び第２の端子電
極部を形成し、前記コイルの外側端末部を前記第１の端
子電極部に接続し、前記コイルと異なる面に前記コイル
の内側端末部を渦巻き状の導体パターンの外側に導き出
すための引出し用導体パターンを形成し、前記引出し用
導体パターンの端末部をスルーホールを介して前記コイ
ルの内側端末部に接続し、前記第２の端子電極部を、前
記引出し用導体パターンの前記コイルの内側端末部が接
続されていない方の端末部に接続するようにしたことを
特徴とするものである。According to a fourth aspect of the present invention, in the inductance according to the first to third aspects, the coil is formed in a spiral shape, and the bent portion is formed with first and second terminal electrode portions. connect the outer end portion of the coil before Symbol first terminal electrode portion, the inner terminal portions of the coil to form a drawer conductive pattern for deriving outside the spiral conductor patterns on different surfaces and said coil, The end portion of the lead-out conductor pattern is connected to the inner end portion of the coil through a through hole, and the second terminal electrode portion is not connected to the inner end portion of the coil of the lead-out conductor pattern. It is characterized in that it is connected to one of the terminals.
【００１０】請求項５記載の発明は、請求項４記載のイ
ンダクタンスにおいて、前記渦巻き状に形成したコイル
の端末部と、前記第１及び第２の端子電極部と、前記引
出し用導体パターンの端末部とを、導体パターンのパタ
ーン幅より幅広に形成したことを特徴とするものであ
る。According to a fifth aspect of the present invention, there is provided the inductance according to the fourth aspect, wherein the coil-shaped coil end portion, the first and second terminal electrode portions, and the lead-out conductor pattern end portion. The portions are formed wider than the pattern width of the conductor pattern.
【００１１】請求項６記載の発明は、柔軟性を備えた絶
縁性基材と、前記絶縁性基材に少なくとも一方を渦巻き
状にした導体パターンを２つ形成し１次及び２次コイル
とし、前記コイルを挟み込むように配置した磁性材とを
有するトランスにおいて、前記絶縁性基材に、前記磁性
材の前記絶縁性基材に対向する面から外面にかけて折り
曲げることができる折り曲げ部を設け、前記折り曲げ部
に端子電極部を形成し、前記コイルの端末部を前記端子
電極部に接続したことを特徴とするものである。The invention according to claim 6 is an insulating material having flexibility.
Swirl edging substrate and at least one of the insulating substrate
Primary and secondary coils with two shaped conductor patterns
And the magnetic material arranged so as to sandwich the coil.
In the transformer having the magnetic property,
Fold the material from the surface facing the insulating substrate to the outer surface.
The bendable portion is provided, and the bendable portion is provided.
Forming a terminal electrode portion on the terminal end of the coil
It is characterized in that it is connected to an electrode portion .
【００１２】請求項７記載の発明は、請求項６記載のト
ランスにおいて、前記絶縁性基材に少なくとも１つの開
口部を設け、前記開口部に挿通する突起部を前記磁性材
に設けたことを特徴とするものである。According to a seventh aspect of the invention, in the transformer according to the sixth aspect , at least one opening is provided in the insulating base material.
The magnetic material is provided with a protrusion that is provided with a mouth and is inserted into the opening.
It is characterized by being provided in .
【００１３】請求項８記載の発明は、請求項６または請
求項７記載のトランスにおいて、前記磁性材の外面に、
前記折り曲げ部を収納する凹部を設け、前記折り曲げ部
を折り曲げたときに、前記折り曲げ部が前記凹部に収納
されるようにしたことを特徴とするものである。 The invention according to claim 8 is claim 6 or the contract.
In the transformer according to claim 7, on the outer surface of the magnetic material,
A recess for accommodating the bent portion is provided, and the bent portion is
When folded, the bent part is stored in the recess.
It is characterized by being done.
【００１４】請求項９記載の発明は、請求項６乃至請求
項８記載のトランスにおいて、前記１次及び２次コイル
を共に渦巻き状に形成し、前記１次及び２次コイルを前
記絶縁性基材の異なる面に互いに対向するように配置
し、前記折り曲げ部に第１及び第２の端子電極部を形成
し、前記１次及び２次コイルの外側端末部を前記第１の
端子電極部に接続し、前記１次及び２次コイルと異なる
面に前記１次及び２次コイルの内側端末部を渦巻き状の
導体パターンの外側に導き出すための引出し用導体パタ
ーンを形成し、前記１次及び２次コイルの内側端末部
を、スルーホールを介して前記引出し用導体パターンの
端末部と接続し、前記第２の端子電極部を、前記引出し
用導体パターンの前記１次及び２次コイルの内側端末部
が接続されていない方の端末部に接続するようにしたこ
とを特徴とするものである。 According to a ninth aspect of the present invention, in the transformer according to the sixth to eighth aspects, the primary and secondary coils are provided.
Both are formed in a spiral shape, and the primary and secondary coils are
Arranged to face each other on different sides of the insulating base material
Then, the first and second terminal electrode portions are formed on the bent portion.
The outer end portions of the primary and secondary coils are connected to the first
Connected to the terminal electrode part, different from the primary and secondary coils
The inner end portions of the primary and secondary coils on the surface
Conducting conductor pattern for drawing out to the outside of the conductor pattern
Inner ends of the primary and secondary coils forming a loop
Of the conductor pattern for drawing out through a through hole.
The terminal part is connected, and the second terminal electrode part is connected to the drawer.
Inner end portions of the primary and secondary coils of the conductor pattern for
Is connected to the terminal that is not connected.
And are characterized by.
【００１５】請求項１０記載の発明は、請求項９記載の
トランスにおいて、前記渦巻き状に形成したコイルの端
末部と、前記第１及び第２の端子電極部と、前記引出し
用導体パターンの端末部とを、導体パターンのパターン
幅より幅広に形成したことを特徴とするものである。 According to a tenth aspect of the present invention, in the transformer according to the ninth aspect , the end of the spirally formed coil is formed.
The end portion, the first and second terminal electrode portions, and the drawer
The end of the conductor pattern for the conductor pattern
It is characterized in that it is formed wider than the width.
【００１６】[0016]
【作用】請求項１記載の発明によるインダクタンスは、
柔軟性を備えた絶縁性基材と、前記絶縁性基材に導体パ
ターンを形成しコイルとし、前記コイルを挟み込むよう
に配置した磁性材とを有するインダクタンスにおいて、
前記絶縁性基材に、前記磁性材の前記絶縁性基材に対向
する面から外面にかけて折り曲げることができる折り曲
げ部を設け、前記折り曲げ部に端子電極部を形成し、前
記コイルの端末部を前記端子電極部に接続し、前記折り
曲げ部を磁性材の外面に沿って折り曲げることにより、
前記コイルの端末部を接続した前記端子電極部を、前記
磁性材の外面に導き出す構成であるため、前記コイルの
端末部を磁性材の外側に導き出すための導電性を有する
ピン状の端子を別途設ける必要がなくなる。The inductance according to the invention of claim 1 is
A flexible insulating base material and a conductor pattern on the insulating base material.
Form a turn into a coil, and sandwich the coil
In the inductance having the magnetic material arranged in
The insulating base material is provided with a bent portion that can be bent from a surface of the magnetic material facing the insulating base material to an outer surface, a terminal electrode portion is formed in the bent portion, and a terminal portion of the coil is provided. By connecting to the terminal electrode portion and bending the bent portion along the outer surface of the magnetic material,
Since the terminal electrode portion to which the terminal portion of the coil is connected is led out to the outer surface of the magnetic material, a pin-shaped terminal having conductivity for leading the terminal portion of the coil to the outside of the magnetic material is separately provided. There is no need to provide it.
【００１７】請求項２記載の発明は、請求項１記載のイ
ンダクタンスにおいて、前記絶縁性基材に少なくとも１
つの開口部を設け、前記開口部に挿通する突起部を前記
磁性材に設け、前記磁性材で前記コイルを挟み込み、磁
心とし、コイルを挟み込む磁性材は閉磁路を構成できる
ので、コイルが大きいインダクタンス値を得ることがで
きる。[0017] The inventions of claim 2, in the inductance of claim 1, wherein at least the insulating substrate
Since the magnetic material is provided with two openings, and the magnetic material is provided with a protrusion that is inserted into the opening, the magnetic material sandwiches the coil to form a magnetic core, and the magnetic material that sandwiches the coil can form a closed magnetic path. You can get the value.
【００１８】請求項３記載の発明は、請求項１または請
求項２記載のインダクタンスにおいて、前記磁性材の外
面に、前記折り曲げ部を収納する凹部を設け、前記折り
曲げ部を折り曲げたときに、前記折り曲げ部が前記凹部
に収納されるようにした構成であるため、前記磁性材に
前記折り曲げ部による凹凸が生ずることがなく、かつ、
凹部に収納するように前記折り曲げ部を折り曲げるの
で、折り曲げの位置ずれが生じにくくなる。 [0018] inventions of claim 3, in claim 1 or inductance of claim 2, the outer surface of the magnetic material, the recess for accommodating the bent portion is provided, when the bending the bending portion, Since the bent portion is configured to be housed in the concave portion, the magnetic material does not have unevenness due to the bent portion, and
Since folding the bent portion to accommodate the recess, that a hardly occurs positional displacement of bending.
【００１９】請求項４記載の発明は、請求項１乃至請求
項３記載のインダクタンスにおいて、前記コイルを渦巻
き状に形成し、前記折り曲げ部に第１及び第２の端子電
極部を形成し、前記コイルの外側端末部を前記第１の端
子電極部に接続し、前記コイルと異なる面に前記コイル
の内側端末部を渦巻き状の導体パターンの外側に導き出
すための引出し用導体パターンを形成し、前記引出し用
導体パターンの端末部をスルーホールを介して前記コイ
ルの内側端末部に接続し、前記第２の端子電極部を、前
記引出し用導体パターンの前記コイルの内側端末部が接
続されていない方の端末部に接続しており、前記引出し
用導体パターンは、前記渦巻き状に形成されたコイルの
内側端末部以外には接することがないようにすることが
できる。[0019] The inventions of claim 4, in claim 1 to the inductance of the third aspect, the spiral of the coil
It is formed into a strip shape, and the first and second terminal electrodes are formed on the bent portion.
Forming a pole and connecting the outer end of the coil to the first end
The coil is connected to the child electrode part and is placed on a surface different from the coil.
Guide the inner end of the wire to the outside of the spiral conductor pattern.
To form a conductive pattern for drawer,
Connect the end of the conductor pattern to the carp through the through hole.
Connected to the inner end of the
The inner terminal of the coil of the conductor pattern for drawing
The lead-out conductor pattern is connected to the end portion which is not connected, and the lead-out conductor pattern can be prevented from coming into contact with anything other than the inner end portion of the spirally formed coil.
【００２０】請求項５記載の発明は、請求項４記載のイ
ンダクタンスにおいて、前記渦巻き状に形成したコイル
の端末部と、前記第１及び第２の端子電極部と、前記引
出し用導体パターンの端末部とを、導体パターンのパタ
ーン幅より幅広に形成しており、インダクタンスを回路
基板上に接続する際のインダクタンスの位置ずれによる
回路への未接続または接続不良をなくすことができ、ま
た、前記折り曲げ部を、前記磁性材の外面に沿って折り
曲げたときに、前記第１および第２の端子電極部が断線
することを少なくすることができる。[0020] The inventions of claim 5, wherein, in the inductance of claim 4, the terminal portion of the coil formed in the spiral shape, and a front Symbol first and second terminal electrode portion, the lead conductor pattern The terminal part of is formed wider than the pattern width of the conductor pattern, and it is possible to eliminate unconnection or poor connection to the circuit due to displacement of the inductance when connecting the inductance to the circuit board, and When the bent portion is bent along the outer surface of the magnetic material, disconnection of the first and second terminal electrode portions can be reduced .
【００２１】請求項６記載の発明は、柔軟性を備えた絶
縁性基材と、前記絶縁性基材に少なくとも一方を渦巻き
状にした導体パターンを２つ形成し１次及び２次コイル
とし、前記コイルを挟み込むように配置した磁性材とを
有するトランスにおいて、前記絶縁性基材に、前記磁性
材の前記絶縁性基材に対向する面から外面にかけて折り
曲げることができる折り曲げ部を設け、前記折り曲げ部
に端子電極部を形成し、前記コイルの端末部を前記端子
電極部に接続し、前記折り曲げ部を磁性材の外面に沿っ
て折り曲げることにより、前記１次及び２次コイルの端
末部を接続した前記端子電極部を、前記磁性材の外面に
導き出す構成であるため、前記１次及び２次コイルの端
末部に接続するための導電性を有するピン状の端子を別
途設ける必要がなくなる。 [0021] The inventions of claim 6, wherein, with the flexibility absolute
Swirl edging substrate and at least one of the insulating substrate
Primary and secondary coils with two shaped conductor patterns
And the magnetic material arranged so as to sandwich the coil.
In the transformer having the magnetic property,
Fold the material from the surface facing the insulating substrate to the outer surface.
The bendable portion is provided, and the bendable portion is provided.
Forming a terminal electrode portion on the terminal end of the coil
Connect the electrode to the bent part along the outer surface of the magnetic material.
End of the primary and secondary coils by bending
Attach the terminal electrode part that connects the end part to the outer surface of the magnetic material.
Since the structure is derived, the ends of the primary and secondary coils
Separate the conductive pin-shaped terminal for connecting to the end.
There is no need to set it up.
【００２２】請求項７記載の発明は、請求項６記載のト
ランスにおいて、前記絶縁性基材に少なくとも１つの開
口部を設け、前記開口部に挿通する突起部を前記磁性材
に設け、前記磁性材で前記コイルを挟み込み、磁心と
し、コイルを挟み込む磁性材は閉磁路を構成できるの
で、コイルが大きいインダクタンス値を得ることができ
る。 [0022] The inventions of claim 7, wherein, in the transformer according to claim 6, wherein at least one opening in the insulating substrate
The magnetic material is provided with a protrusion that is provided with a mouth and is inserted into the opening.
The magnetic material is sandwiched between the coil and the magnetic core.
However, the magnetic material that sandwiches the coil can form a closed magnetic circuit.
And the coil can get a large inductance value
It
【００２３】請求項８記載の発明は、請求項６または請
求項７記載のトランスにおいて、前記磁性材の外面に、
前記折り曲げ部を収納する凹部を設け、前記折り曲げ部
を折り曲げたときに、前記折り曲げ部が前記凹部に収納
されるようにした構成であるため、前記磁性材に前記折
り曲げ部による凹凸が生ずることがなく、かつ、凹部に
収納するように前記折り曲げ部を折り曲げるので、折り
曲げの位置ずれが生じにくくなる。 The invention according to claim 8 is the invention according to claim 6 or the contract.
In the transformer according to claim 7, on the outer surface of the magnetic material,
A recess for accommodating the bent portion is provided, and the bent portion is
When folded, the bent part is stored in the recess.
Since it is configured to be
There is no unevenness due to the bent portion, and
Since the folding part is folded to store it,
Bending position shift is less likely to occur.
【００２４】請求項９記載の発明は、請求項６乃至請求
項８記載のトランスにおいて、前記１次及び２次コイル
を共に渦巻き状に形成し、前記１次及び２次コイルを前
記絶縁性基材の異なる面に互いに対向するように配置
し、前記折り曲げ部に第１及び第２の端子電極部を形成
し、前記１次及び２次コイルの外側端末部を前記第１の
端子電極部に接続し、前記１次及び２次コイルと異なる
面に前記１次及び２次コイルの内側端末部を渦巻き状の
導体パターンの外側に導き出すための引出し用導体パタ
ーンを形成し、前記１次及び２次コイルの内側端末部
を、スルーホールを介して前記引出し用導体パターンの
端末部と接続し、前記第２の端子電極部を、前記引出し
用導体パターンの前記１次及び２次コイルの内側端末部
が接続されていない方の端末部に接続するようにしてお
り、前記１次及び２次コイル間の電磁結合を高めること
ができる。 [0024] The inventions of claim 9, in claim 6 or transformer according to claim 8, wherein the primary and secondary coils
Both are formed in a spiral shape, and the primary and secondary coils are
Arranged to face each other on different sides of the insulating base material
Then, the first and second terminal electrode portions are formed on the bent portion.
The outer end portions of the primary and secondary coils are connected to the first
Connected to the terminal electrode part, different from the primary and secondary coils
The inner end portions of the primary and secondary coils on the surface
Conducting conductor pattern for drawing out to the outside of the conductor pattern
Inner ends of the primary and secondary coils forming a loop
Of the conductor pattern for drawing out through a through hole.
The terminal part is connected, and the second terminal electrode part is connected to the drawer.
Inner end portions of the primary and secondary coils of the conductor pattern for
Make sure that you connect to the terminal that is not connected
The electromagnetic coupling between the primary and secondary coils.
Can be.
【００２５】請求項１０記載の発明は、請求項９記載の
トランスにおいて、前記渦巻き状に形成したコイルの端
末部と、前記第１及び第２の端子電極部と、前記引出し
用導体パターンの端末部とを、導体パターンのパターン
幅より幅広に形成しており、トランスを回路基板上に接
続する際のトランスの位置ずれによる回路への未接続ま
たは接続不良をなくすことができ、また、前記折り曲げ
部を、前記磁性材の外面に沿って折り曲げたときに、前
記第１および第２の端子電極部が断線することを少なく
することができる。 The invention as defined in claim 10 is as defined in claim 9.
In the transformer, the ends of the spirally formed coil
The end portion, the first and second terminal electrode portions, and the drawer
The end of the conductor pattern for the conductor pattern
It is formed wider than the width, and the transformer contacts the circuit board.
Not connected to the circuit due to the displacement of the transformer when continuing.
Or connection failure can be eliminated and the bending
When the part is bent along the outer surface of the magnetic material,
It is less likely that the first and second terminal electrode parts will be disconnected.
can do.
【００２６】[0026]
【実施例】以下、本発明の一実施例について図面に基づ
き説明する。図１及び図２は、本発明の一実施例に係る
平面型のインダクタンスを示す分解斜視図及び斜視図で
ある。柔軟性のある絶縁性基材として、厚さ数十μｍの
ポリイミド等のフレキシブル基板１を用いた。フレキシ
ブル基板１に渦巻き状の導体パターンを形成してコイル
２とし、フレキシブル基板１のコイル２の内側の部分に
開口部３を設け、その開口部３に挿通する突起部４を有
するフェライト等からなる箱状の磁性材５と平板状の磁
性材６とでフレキシブル基板１を上下から挟み込むとと
もに、コイル２を覆うように配置し磁心としている。従
って、コイル２は閉磁路を形成した磁性材に覆われるた
め、大きいインダクタンス値を得ることができる。な
お、コイル２はフレキシブル基板１に銅膜を積層させた
後エッチングによって形成する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are an exploded perspective view and a perspective view showing a planar inductance according to an embodiment of the present invention. As a flexible insulating base material, a flexible substrate 1 made of polyimide or the like having a thickness of several tens of μm was used. A coil 2 is formed by forming a spiral conductor pattern on the flexible substrate 1, and an opening 3 is provided inside the coil 2 of the flexible substrate 1 and is made of ferrite or the like having a protrusion 4 that is inserted into the opening 3. The flexible substrate 1 is sandwiched between the box-shaped magnetic material 5 and the flat magnetic material 6 from above and below, and the coil 2 is arranged so as to cover the coil 2 to form a magnetic core. Therefore, since the coil 2 is covered with the magnetic material forming the closed magnetic path, a large inductance value can be obtained. The coil 2 is formed by laminating a copper film on the flexible substrate 1 and then etching.
【００２７】フレキシブル基板１には、磁性材６のコイ
ル２に対向する面から外面にかけて折り曲げることがで
きる折り曲げ部７を設け、折り曲げ部７の、コイル２が
形成された面とは異なる面に、第１及び第２の端子電極
部８ａ、８ｂを形成する。端子電極部８ａ、８ｂには、
コイル２の端末部を接続し、折り曲げ部７を磁性材６の
外面に沿って折り曲げたときに、端子電極部８ａ、８ｂ
が磁性材６の外面に現れ、コイル２の端末部を磁性材６
の外面に導き出せるように形成している。コイル２の外
側端末部は、スルーホール９ａを介して端子電極部８ａ
に接続される。フレキシブル基板１のコイル２の形成さ
れた面と異なる面に、コイル２の内側端末部を渦巻きの
外側に導き出すための引出し用導体パターン１０を形成
し、コイル２の内側端末部は、スルーホール９ｂを介し
て引出し用導体パターン１０の端末部に接続される。引
出し用導体パターン１０のコイル２の内側端末部が接続
されていない方の端末部は、端子電極部８ｂに接続され
ている。磁性材６には、折り曲げ部７を収納する凹部１
１が形成され、図２に示すように、折り曲げ部７を磁性
材６の外面に沿って折り曲げたことによる磁性材６の凹
凸が生ずることをなくすと共に、折り曲げの位置ずれを
生じにくくすることができる。折り曲げ部７と磁性材６
とは、接着剤等によって接着される。また、磁性材５に
は、折り曲げ部７が位置する部分に切り込み部１２が形
成される。The flexible substrate 1 is provided with a bending portion 7 which can be bent from the surface of the magnetic material 6 facing the coil 2 to the outer surface, and the bending portion 7 has a surface different from the surface on which the coil 2 is formed. The first and second terminal electrode portions 8a and 8b are formed. In the terminal electrode portions 8a and 8b,
When the terminal portions of the coil 2 are connected and the bent portion 7 is bent along the outer surface of the magnetic material 6, the terminal electrode portions 8a, 8b
Appear on the outer surface of the magnetic material 6, and the end portion of the coil 2 is
It is formed so that it can be guided to the outer surface of. The outer terminal portion of the coil 2 is connected to the terminal electrode portion 8a through the through hole 9a.
Connected to. On a surface of the flexible substrate 1 different from the surface on which the coil 2 is formed, a lead-out conductor pattern 10 for guiding the inner end portion of the coil 2 to the outside of the spiral is formed, and the inner end portion of the coil 2 has a through hole 9b. Is connected to the end of the lead-out conductor pattern 10. The end portion of the lead-out conductor pattern 10 to which the inner end portion of the coil 2 is not connected is connected to the terminal electrode portion 8b. The magnetic material 6 has a concave portion 1 for accommodating the bent portion 7.
1 is formed, and as shown in FIG. 2, it is possible to prevent unevenness of the magnetic material 6 caused by bending the bent portion 7 along the outer surface of the magnetic material 6 and to prevent misalignment of the bending. it can. Bent part 7 and magnetic material 6
And are bonded by an adhesive or the like. Further, the magnetic material 5 is provided with a cut portion 12 at a portion where the bent portion 7 is located.
【００２８】なお、凹部１１は、本実施例では磁性材６
に形成されているが、必ずしも磁性材６に形成されてい
る必要はなく、磁性材５または磁性材５、６各々に形成
されてもよい。The concave portion 11 is made of the magnetic material 6 in this embodiment.
However, the magnetic material 5 does not necessarily have to be formed on the magnetic material 6, and may be formed on the magnetic material 5 or each of the magnetic materials 5 and 6.
【００２９】コイル２の外側端末部のスルーホールを介
した部分と、引出し用導体パターン１０の端子電極部８
ｂと接続する方の端末部には、導体パターンのパターン
幅（数十μｍ）より幅広（数ｍｍ程度）の電極部１３が
形成されており、また、端子電極部８ａ、８ｂを、導体
パターンのパターン幅（数十μｍ）より幅広（数ｍｍ程
度）に形成することにより、インダクタンスを回路基板
上に接続する際のインダクタンスの位置ずれによる回路
への未接続または接続不良をなくすことができ、更に、
折り曲げ部７を、磁性材６の外面に沿って折り曲げたと
きに、端子電極部８ａ、８ｂが断線しにくくなる。A portion of the coil 2 on the outside end portion through the through hole and the terminal electrode portion 8 of the lead-out conductor pattern 10.
The terminal portion of the person to be connected is b, and the electrode portion 13 of the wide (about several mm) than the pattern width of the conductor pattern (several tens [mu] m) is formed, also, the terminal electrode portions 8a, the 8b, the conductive pattern By forming the pattern width (several tens of μm) wider than (about several mm), it is possible to eliminate unconnection or connection failure to the circuit due to displacement of the inductance when connecting the inductance to the circuit board, Furthermore,
When the bent portion 7 is bent along the outer surface of the magnetic material 6, the terminal electrode portions 8a and 8b are less likely to be broken.
【００３０】なお、磁性材５、６としては、Ｉ型とＥ
型、Ｌ型とＦ型、コ字型とＴ字型の組み合わせ等も考え
られる。また、本実施例では、コイル２の形状として
は、角状の渦巻き形状としたが、必ずしも角状になって
いる必要はなく、円形の渦巻き形状等でもよい。The magnetic materials 5 and 6 are I type and E type.
A combination of L-type, F-type, U-shaped and T-shaped, etc. is also conceivable. Further, in the present embodiment, the coil 2 has a square spiral shape, but the coil 2 need not necessarily have a square shape, and may have a circular spiral shape or the like.
【００３１】本実施例によれば、端子電極部８ａ、８ｂ
を備えた折り曲げ部７を、磁性材６の外面に沿って折り
曲げ、端子電極部８ａ、８ｂを磁性材の外面に現れるよ
うにし、端子電極部８ａ、８ｂに接続したコイル２の端
末部を磁性材の外部に導き出すようにしたので、図６で
示したピン状の端子１８を用いることなしに、コイル２
の端末部を磁性材５、６の外部に導き出すことができ、
かつ、磁性材６には折り曲げ部７を収納する凹部１１が
形成され、折り曲げ部７を磁性材６の外面に沿って折り
曲げたことによる磁性材６の凹凸をなくすことができる
ので、回路上に表面実装あるいは自動実装がし易くな
る。According to this embodiment, the terminal electrode portions 8a, 8b
The bent portion 7 provided with is bent along the outer surface of the magnetic material 6 so that the terminal electrode portions 8a and 8b appear on the outer surface of the magnetic material, and the terminal portion of the coil 2 connected to the terminal electrode portions 8a and 8b is made magnetic. Since it is led out to the outside of the material, the coil 2 can be used without using the pin-shaped terminal 18 shown in FIG.
Can be led out to the outside of the magnetic material 5, 6,
Further, the magnetic material 6 is formed with a recess 11 for accommodating the bent portion 7, and since the unevenness of the magnetic material 6 caused by bending the bent portion 7 along the outer surface of the magnetic material 6 can be eliminated, it is possible to eliminate the unevenness on the circuit. Surface mounting or automatic mounting becomes easy.
【００３２】図３及び図４は、本発明の他の実施例に係
る平面型のトランスを示す分解斜視図及び斜視図であ
る。柔軟性のある絶縁性基材として、厚さ数十μｍのポ
リイミド等のフレキシブル基板１を用いた。フレキシブ
ル基板１の一方の面に渦巻き状の導体パターンを形成し
１次コイル１４とし、同様にして他方の面に２次コイル
１５を形成して、磁性材５、６で１次、２次コイル１
４、１５を挟み込むように配置して磁心としている。従
って、１次、２次コイル１４、１５は閉磁路を形成した
磁性材５、６に覆われるため、大きいインダクタンス値
を得ることができる。なお、１次、２次コイル１４、１
５は、フレキシブル基板１に銅膜を積層させた後エッチ
ングによって形成する。3 and 4 are an exploded perspective view and a perspective view showing a flat type transformer according to another embodiment of the present invention. As a flexible insulating base material, a flexible substrate 1 made of polyimide or the like having a thickness of several tens of μm was used. A spiral conductor pattern is formed on one surface of the flexible substrate 1 to form a primary coil 14, and a secondary coil 15 is formed on the other surface in the same manner. 1
The magnetic cores are arranged so as to sandwich 4 and 15. Therefore, since the primary and secondary coils 14 and 15 are covered with the magnetic materials 5 and 6 forming the closed magnetic path, a large inductance value can be obtained. The primary and secondary coils 14, 1
5 is formed by stacking a copper film on the flexible substrate 1 and then etching.
【００３３】図５は、図３に示すＸ−Ｘ’での断面図で
ある。１次、２次コイル１４、１５は互いにフレキシブ
ル基板の厚さ程度離れるだけであり、対向配置させるこ
とで１次、２次コイル間の電磁結合が高くなる。FIG. 5 is a sectional view taken along line XX 'shown in FIG. The primary and secondary coils 14 and 15 are separated from each other only by the thickness of the flexible substrate, and when they are opposed to each other, electromagnetic coupling between the primary and secondary coils is increased.
【００３４】なお、本実施例では１次、２次コイルを１
枚のフレキシブル基板の両面に各々形成したが、多層基
板の２つの層に形成してもよい。In this embodiment, the primary and secondary coils are
Although each flexible substrate is formed on both sides, it may be formed on two layers of a multilayer substrate.
【００３５】フレキシブル基板１には、磁性材６の１次
コイル１４に対向する面から外面にかけて折り曲げるこ
とができる折り曲げ部７を設け、折り曲げ部７の、２次
コイル１５が形成されている方の面に、端子電極部８
ａ、８ｂを形成している。１次コイル１４の外側端末部
は、スルーホール９ａを介して端子電極部８ａに接続
し、１次コイル１４の内側端末部は、スルーホール９ｂ
を介して引出し用導体パターン１０に接続し、引出し用
導体パターン１０は、端子電極部８ｂに接続している。
２次コイル１５の外側端末部は、端子電極部８ａに接続
し、２次コイル１５の内側端末部は、スルーホール９ｂ
を介して引出し用導体パターン１０に接続し、スルーホ
ール９ｃを介して端子電極部８ｂに接続している。The flexible substrate 1 is provided with a bending portion 7 that can be bent from the surface of the magnetic material 6 facing the primary coil 14 to the outer surface, and the bending portion 7 of which the secondary coil 15 is formed is formed. On the surface, the terminal electrode portion 8
a and 8b are formed. The outer end portion of the primary coil 14 is connected to the terminal electrode portion 8a via the through hole 9a, and the inner end portion of the primary coil 14 is connected to the through hole 9b.
Is connected to the lead-out conductor pattern 10 through, and the lead-out conductor pattern 10 is connected to the terminal electrode portion 8b.
The outer end portion of the secondary coil 15 is connected to the terminal electrode portion 8a, and the inner end portion of the secondary coil 15 is connected to the through hole 9b.
To the lead-out conductor pattern 10 and via the through hole 9c to the terminal electrode portion 8b.
【００３６】磁性材６には、折り曲げ部７を収納する凹
部１１を形成し、図４に示すように、折り曲げ部７を磁
性材６の外面に沿って折り曲げたことによる磁性材６の
凹凸が生ずることがなくなり、折り曲げの位置ずれを生
じにくくすることができる。折り曲げ部７と磁性材６と
は、接着剤等によって接着する。また、磁性材５には、
折り曲げ部７が位置する部分に切り込み部１２を形成し
ている。A concave portion 11 for accommodating the bent portion 7 is formed in the magnetic material 6, and as shown in FIG. 4, unevenness of the magnetic material 6 caused by bending the bent portion 7 along the outer surface of the magnetic material 6 is formed. It will not occur, and it is possible to make it difficult for displacement of the bending position to occur. The bent portion 7 and the magnetic material 6 are bonded to each other with an adhesive or the like. The magnetic material 5 includes
The notch 12 is formed in the portion where the bent portion 7 is located.
【００３７】１次コイル１４の外側端末部のスルーホー
ル９ａを介した部分と２次コイル１５の外側端末部と、
引出し用導体パターン１０の端子電極部８ｂと接続する
ほうの端末部には、導体パターンのパターン幅（数十μ
ｍ）より幅広（数ｍｍ程度）の電極部１３が形成されて
おり、また、端子電極部８ａ、８ｂを、パターン幅（数
十μｍ）より幅広（数ｍｍ程度）に形成することによ
り、トランスを回路基板上に接続する際のトランスの位
置ずれによる回路への未接続または接続不良をなくすこ
とができ、更に、折り曲げ部７を、磁性材６の外面に沿
って折り曲げたときに、端子電極部８ａ、８ｂが断線す
ることがなくなる。The portion of the outer coil of the primary coil 14 through the through hole 9a and the outer coil of the secondary coil 15,
The width of the conductor pattern (several tens of μ
m) An electrode unit 13 of the wide (about several mm) are formed from, also, the terminal electrode portions 8a, the 8b, by forming a wide (about several mm) than the pattern width (several tens of [mu] m), trans It is possible to eliminate unconnected or defective connection to the circuit due to the displacement of the transformer when connecting the wire to the circuit board. Furthermore, when the bent portion 7 is bent along the outer surface of the magnetic material 6, the terminal electrode The parts 8a and 8b will not be disconnected.
【００３８】本実施例によれば、端子電極部８ａ、８ｂ
を備えた折り曲げ部７を、磁性材６の外面に沿って折り
曲げ、端子電極部８ａ、８ｂを磁性材の外面に現れるよ
うにし、端子電極部８ａ、８ｂに接続した１次、２次コ
イルの端末部を磁性材の外部に導き出すようにしたので
図６で示したピン状の端子１８を用いることなしに、１
次、２次コイル１４、１５の端末部を磁性材５、６の外
部に導き出すことができ、かつ、磁性材６には折り曲げ
部７を収納する凹部１１が形成され、折り曲げ部７を磁
性材６の外面に沿って折り曲げたことによる磁性材６の
凹凸をなくすことができるので、回路上に表面実装ある
いは自動実装がし易くなる。According to this embodiment, the terminal electrode portions 8a, 8b
The bent portion 7 provided with is bent along the outer surface of the magnetic material 6 so that the terminal electrode portions 8a and 8b appear on the outer surface of the magnetic material, and the primary and secondary coils connected to the terminal electrode portions 8a and 8b are connected. Since the terminal portion is led out to the outside of the magnetic material, it is possible to use the pin-shaped terminal 18 shown in FIG.
The end portions of the secondary and secondary coils 14 and 15 can be led out to the outside of the magnetic materials 5 and 6, and the magnetic material 6 is provided with a recess 11 for accommodating the bent portion 7. Since the unevenness of the magnetic material 6 due to bending along the outer surface of 6 can be eliminated, it becomes easy to perform surface mounting or automatic mounting on the circuit.
【００３９】[0039]
【発明の効果】請求項１記載の発明は、柔軟性のある絶
縁性基材に、磁性材の前記絶縁性基材に対向する面から
外面にかけて折り曲げることができる折り曲げ部を形成
し、前記折り曲げ部に端子電極部を形成して、前記コイ
ルの端末部と前記端子電極部を接続して、前記折り曲げ
部を前記磁性材の外面に沿って折り曲げ、前記端子電極
部を磁性材の外面に現れるようにし、前記コイルの端末
部を前記磁性材の外部に導き出すようにしたので、前記
コイルの端末部を磁性材の外部に導き出すための導電性
を有するピン状の端子を別途設ける必要がなくなり、イ
ンダクタンスを製作するための工程を減らすことがで
き、安価で、製造容易な、平面型のインダクタンスを提
供できた。Effect of the Invention of claim 1, wherein the invention is in a flexible insulating substrate, bent portion is formed may be folded over the outer surface from the surface facing the magnetic material said insulating substrate, said folding A terminal electrode portion is formed on the portion, the terminal portion of the coil is connected to the terminal electrode portion, the bent portion is bent along the outer surface of the magnetic material, and the terminal electrode portion appears on the outer surface of the magnetic material. Thus, since the terminal portion of the coil is led to the outside of the magnetic material, it is not necessary to separately provide a pin-shaped terminal having conductivity for leading the terminal portion of the coil to the outside of the magnetic material, The number of steps for manufacturing the inductance can be reduced, and the planar inductance that is inexpensive and easy to manufacture can be provided.
【００４０】請求項２記載の発明は、請求項１記載のイ
ンダクタンスにおいて、前記磁性材に設けた突起部が、
前記絶縁性基材に設けた開口部を挿通して前記コイルを
覆い、磁心とした構成であり、コイルを覆う磁性材は閉
磁路を構成するので、コイルは大きいインダクタンス値
を実現できる。従って、コイルを大型化することなく所
望のインダクタンス値を得ることができる。[0040] According to a second aspect of the invention, the inductance of claim 1, wherein the protrusion is provided on said magnetic member,
A magnetic core is formed by inserting the opening provided in the insulating base material to cover the coil, and the magnetic material covering the coil forms a closed magnetic path, so that the coil can realize a large inductance value. Therefore, a desired inductance value can be obtained without increasing the size of the coil.
【００４１】請求項３記載の発明は、請求項１または請
求項２記載のインダクタンスにおいて、前記磁性材の外
面に、前記折り曲げ部を収納する凹部を設け、前記凹部
に前記折り曲げ部を収納する構成であるので、前記磁性
材に前記折り曲げ部による凹凸が生ずることがなく、か
つ、凹部に収納するように前記折り曲げ部を折り曲げる
ので、折り曲げの位置ずれを生じにくくすることがで
き、回路上に表面実装あるいは自動実装がし易くなり、
信頼性を向上できる。The invention according to claim 3, in claim 1 or inductance of claim 2, the configuration on the outer surface of the magnetic material, the recess for accommodating the bent portion is provided, for accommodating the bent portion into the recess Therefore , the magnetic material does not have unevenness due to the bent portion, and since the bent portion is bent so as to be housed in the recessed portion, it is possible to prevent the displacement of the bending from occurring, and to prevent the surface on the circuit. Mounting or automatic mounting becomes easier,
The reliability can be improved.
【００４２】請求項４記載の発明は、請求項１乃至請求
項３記載のインダクタンスにおいて、前記コイルを渦巻
き状に形成し、前記渦巻き状に形成したコイルの内側端
末部を、スルーホールを介して引出し用導体パターンに
より渦巻きの外側に導き出すようにしたので、前記引出
し用導体パターンは、前記コイルを渦巻き状に形成して
も前記渦巻き状に形成したコイルの内側端末部以外には
接することがないようにすることができ、前記渦巻き状
に形成したコイルと前記引出し用導体パターンとが短絡
することを防止できる。The invention according to claim 4, in claim 1 to the inductance according to claim 3, the coil is formed in a spiral shape, the inner terminal portions of the coil formed in the spiral shape, via a through hole since so derive the outside of the spiral by drawing-out conductive pattern, the lead conductor pattern does not come in contact in other than the inner end portion of the coil be formed is formed in the spiral in a spiral of said coil Thus, it is possible to prevent a short circuit between the spirally formed coil and the lead-out conductor pattern.
【００４３】請求項５記載の発明は、請求項４記載のイ
ンダクタンスにおいて、前記渦巻き状に形成したコイル
の端末部と、前記端子電極部と、前記引出し用導体パタ
ーンの端末部とを、導体パターンのパターン幅より幅広
に形成したので、インダクタンスを回路基板上に接続す
る際のインダクタンスの位置ずれによる回路への未接続
または接続不良をなくすことができ、また、前記折り曲
げ部を、前記磁性材の外面に沿って折り曲げたときに、
前記第１および第２の端子電極部が断線することがなく
なり、信頼性を向上できる。According to a fifth aspect of the present invention, in the inductance according to the fourth aspect, a terminal portion of the coil formed in the spiral shape, the terminal electrode portion, and a terminal portion of the lead-out conductor pattern are formed by a conductor pattern. Since it is formed to be wider than the pattern width, it is possible to eliminate unconnection or connection failure to the circuit due to the displacement of the inductance when connecting the inductance on the circuit board. When folded along the outer surface,
The first and second terminal electrode portions will not be disconnected and reliability can be improved.
【００４４】請求項６記載の発明は、柔軟性のある絶縁
性基材に、磁性材の前記絶縁性基材に対向する面から外
面にかけて折り曲げることができる折り曲げ部を設け、
前記折り曲げ部に端子電極部を形成し、１次及び２次コ
イルの端末部を前記端子電極部に接続し、前記折り曲げ
部を磁性材の外面に沿って折り曲げることにより、前記
１次及び２次コイルの端末部を接続した前記端子電極部
を、前記磁性材の外面に導き出すようにしたので、前記
１次及び２次コイルの端末部を磁性材の外部に導き出す
ための導電性を有するピン状の端子を別途設ける必要が
なくなり、トランスを製作するための工程を減らすこと
ができ、安価で、製造容易な、平面型のトランスを提供
できた。 The invention according to claim 6 is a flexible insulating
The magnetic base material from the surface of the magnetic material facing the insulating base material.
Provide a folding part that can be folded over the surface,
A terminal electrode portion is formed on the bent portion, and
Connect the end of the coil to the terminal electrode and bend it.
By bending the portion along the outer surface of the magnetic material,
The terminal electrode part to which the terminal parts of the primary and secondary coils are connected
Since it is led to the outer surface of the magnetic material,
Lead the ends of the primary and secondary coils out of the magnetic material
It is necessary to separately provide a pin-shaped terminal having conductivity for
To reduce the number of steps to make a transformer
Offering a flat transformer that can be manufactured, is inexpensive, and is easy to manufacture
did it.
【００４５】請求項７記載の発明は、請求項６記載のト
ランスにおいて、前記磁性材に設けた突起部が、前記絶
縁性基材に設けた開口部を挿通して前記コイルを覆い、
磁心とした構成であり、コイルを覆う磁性材は閉磁路を
構成するので、コイルは大きいインダクタンス値を実現
できる。従って、コイルを大型化することなく所望のイ
ンダクタンス値を得ることができる。 According to a seventh aspect of the invention, in the transformer according to the sixth aspect, the protrusion provided on the magnetic material is the insulating member.
To cover the coil by inserting the opening provided in the limbal base material,
The magnetic material that covers the coil has a closed magnetic circuit.
The coil realizes a large inductance value because it is configured
it can. Therefore, a desired coil can be obtained without increasing the size of the coil.
The conductance value can be obtained.
【００４６】請求項８記載の発明は、請求項６または請
求項７記載のトランスにおいて、前記磁性材の外面に、
前記折り曲げ部を収納する凹部を設け、前記凹部に前記
折り曲げ部を収納する構成であるので、前記磁性材に前
記折り曲げ部による凹凸が生ずることがなく、かつ、凹
部に収納するように前記折り曲げ部を折り曲げるので、
折り曲げの位置ずれを生じにくくすることができ、回路
上に表面実装あるいは自動実装がし易くなり、信頼性を
向上できる。 The invention according to claim 8 is the invention according to claim 6 or the contract.
In the transformer according to claim 7, on the outer surface of the magnetic material,
A recess for accommodating the bent portion is provided, and the recess is provided with the recess.
Since it is configured to store the bent part,
There is no unevenness due to the bent part, and
Since the bending part is bent so that it is stored in the part,
It is possible to prevent the misalignment of bending from occurring, and
Surface mounting or automatic mounting becomes easier and reliability is improved.
Can be improved.
【００４７】請求項９記載の発明は、請求項６乃至請求
項８記載のトランスにおいて、前記１次及び２次コイル
を共に渦巻き状に形成し、前記１次及び２次コイルを前
記絶縁性基材の異なる面に互いに対向するように配置
し、前記折り曲げ部に第１及び第２の端子電極部を形成
し、前記１次及び２次コイルの外側端末部を前記第１の
端子電極部に接続し、前記１次及び２次コイルと異なる
面に前記１次及び２次コイルの内側端末部を渦巻き状の
導体パターンの外側に導き出すための引出し用導体パタ
ーンを形成し、前記１次及び２次コイルの内側端末部
を、スルーホールを介して前記引出し用導体パターンの
端末部と接続し、前記第２の端子電極部を、前記引出し
用導体パターンの前記１次及び２次コイルの内側端末部
が接続されていない方の端末部に接続するようにしてお
り、前記１次及び２次コイル間の電磁結合を高めること
ができ、従って、結合係数を大きくすることができる。 The invention according to claim 9 is the invention according to claims 6 to 6.
The transformer according to Item 8, wherein the primary and secondary coils
Both are formed in a spiral shape, and the primary and secondary coils are
Arranged to face each other on different sides of the insulating base material
Then, the first and second terminal electrode portions are formed on the bent portion.
The outer end portions of the primary and secondary coils are connected to the first
Connected to the terminal electrode part, different from the primary and secondary coils
The inner end portions of the primary and secondary coils on the surface
Conducting conductor pattern for drawing out to the outside of the conductor pattern
Inner ends of the primary and secondary coils forming a loop
Of the conductor pattern for drawing out through a through hole.
The terminal part is connected, and the second terminal electrode part is connected to the drawer.
Inner end portions of the primary and secondary coils of the conductor pattern for
Make sure that you connect to the terminal that is not connected
The electromagnetic coupling between the primary and secondary coils.
Therefore, the coupling coefficient can be increased.
【００４８】請求項１０記載の発明は、請求項９記載の
トランスにおいて、前記渦巻き状に形成したコイルの端
末部と、前記第１及び第２の端子電極部と、前記引出し
用導体パターンの端末部とを、導体パターンのパターン
幅より幅広に形成しており、トランスを回路基板上に接
続する際のトランスの位置ずれによる回路への未接続ま
たは接続不良をなくすことができ、また、前記折り曲げ
部を、前記磁性材の外面に沿って折り曲げたときに、前
記第１および第２の端子電極部が断線することを少なく
することができる。 The invention as defined in claim 10 is as defined in claim 9.
In the transformer, the ends of the spirally formed coil
The end portion, the first and second terminal electrode portions, and the drawer
The end of the conductor pattern for the conductor pattern
It is formed wider than the width, and the transformer contacts the circuit board.
Not connected to the circuit due to the displacement of the transformer when continuing.
Or connection failure can be eliminated and the bending
When the part is bent along the outer surface of the magnetic material,
It is less likely that the first and second terminal electrode parts will be disconnected.
can do.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の一実施例に係る平面型のインダクタン
スを示す分解斜視図である。FIG. 1 is an exploded perspective view showing a planar type inductance according to an embodiment of the present invention.
【図２】同上に係る斜視図である。FIG. 2 is a perspective view of the above.
【図３】本発明の他の実施例に係る平面型のトランスを
示す分解斜視図である。FIG. 3 is an exploded perspective view showing a flat type transformer according to another embodiment of the present invention.
【図４】同上に係る斜視図である。FIG. 4 is a perspective view of the above.
【図５】図３に示すＸ−Ｘ’での断面図である。5 is a cross-sectional view taken along line X-X ′ shown in FIG.
【図６】従来例に係る平面型のトランスを示す分解斜視
図である。FIG. 6 is an exploded perspective view showing a flat type transformer according to a conventional example.
【図７】同上に係る斜視図である。FIG. 7 is a perspective view of the above.
【符号の説明】 １ フレキシブル基板 ２ コイル ３ 開口部 ４ 突起部 ５、６ 磁性材 ７ 折り曲げ部 ８ａ、８ｂ 端子電極部 ９ａ、９ｂ、９ｃ スルーホール １０ 引出し用導体パターン １１ 凹部 １２ 切り込み部 １３ 電極部 １４ １次コイル １５ ２次コイル １６ａ、１６ｂ プリント基板 １７ａ、１７ｂ 引出し用導体パターン １８ ピン状の端子[Explanation of Codes] 1 flexible substrate 2 coil 3 opening 4 protrusion 5 and 6 magnetic material 7 bent 8a and 8b terminal electrode 9a, 9b and 9c through hole 10 lead-out conductor pattern 11 recess 12 cut 13 electrode 14 primary coil 15 secondary coil 16a, 16b printed circuit boards 17a, 17b lead-out conductor pattern 18 pin-shaped terminal
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図２[Name of item to be corrected] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図２】 [Fig. 2]
【手続補正３】[Procedure 3]
【補正対象書類名】図面[Document name to be corrected] Drawing
【補正対象項目名】図４[Name of item to be corrected] Fig. 4
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【図４】 [Figure 4]
Claims (7)
性基材に導体パターンを形成しコイルとし、前記コイル
を挟み込むように配置した磁性材とを有するインダクタ
ンスにおいて、前記絶縁性基材に、前記磁性材の前記コ
イルに対向する面から外面にかけて折り曲げることがで
きる折り曲げ部を設け、前記折り曲げ部に端子電極部を
形成し、前記コイルの端末部を前記端子電極部に接続し
たことを特徴とするインダクタンス。1. An inductance having an insulating base material having flexibility and a magnetic material formed by forming a conductor pattern on the insulating base material to form a coil and sandwiching the coil, The material is provided with a bent portion that can be bent from the surface of the magnetic material facing the coil to the outer surface, the terminal electrode portion is formed in the bent portion, and the terminal portion of the coil is connected to the terminal electrode portion. Inductance characterized by.
部を設け、前記開口部に挿通する突起部を前記磁性材に
設けたことを特徴とする請求項１記載のインダクタン
ス。2. The inductance according to claim 1, wherein at least one opening is provided in the insulating base material, and a protrusion that is inserted into the opening is provided in the magnetic material.
収納する凹部を設け、前記折り曲げ部を折り曲げたとき
に、前記折り曲げ部が前記凹部に収納されるようにした
ことを特徴とする請求項１または請求項２記載のインダ
クタンス。3. A recess for accommodating the bent portion is provided on an outer surface of the magnetic material, and the bent portion is accommodated in the recess when the bent portion is bent. The inductance according to claim 1 or claim 2.
り曲げ部の、前記コイルが形成された面と異なる面に第
１及び第２の端子電極部を形成し、前記コイルの外側端
末部を、スルーホールを介して前記第１の端子電極部に
接続し、前記コイルと異なる面に前記コイルの内側端末
部を渦巻きの外側に導き出すための引出し用導体パター
ンを形成し、前記引出し用導体パターンの端末部を前記
第２の端子電極部に接続し、前記コイルの内側端末部
を、スルーホールを介して前記引出し用導体パターンの
前記第２の端子電極部が接続されていない方の端末部に
接続するようにしたことを特徴とする請求項１乃至請求
項３記載のインダクタンス。4. The coil is formed in a spiral shape, first and second terminal electrode portions are formed on a surface of the bent portion different from a surface on which the coil is formed, and an outer end portion of the coil is formed. A lead-out conductor pattern that is connected to the first terminal electrode portion through a through hole and leads out the inner end portion of the coil to the outside of the spiral on a surface different from the coil, and the lead-out conductor pattern. Terminal part of the coil is connected to the second terminal electrode part, and the inner terminal part of the coil is connected to the second terminal electrode part of the lead-out conductor pattern through a through hole. The inductance according to claim 1, wherein the inductance is connected to the inductor.
と、前記第１及び第２の端子電極部と、前記引出し用導
体パターンの端末部とを、導体パターンのパターン幅よ
り幅広に形成したことを特徴とする請求項４記載のイン
ダクタンス。5. The end portion of the spirally formed coil, the first and second terminal electrode portions, and the end portion of the lead-out conductor pattern are formed wider than the pattern width of the conductor pattern. The inductance according to claim 4, wherein:
つ形成することにより、１次または２次コイルとしたこ
とを特徴とするトランス。6. The coil according to claim 1 to 2
A transformer characterized by being formed into a primary or secondary coil by forming one.
に形成し、前記絶縁性基材の一方の面に１次コイルを配
置し、前記絶縁性基材の他方の面に２次コイルを配置
し、前記１次及び２次コイルが対向するように配置した
ことを特徴とする請求項６記載のトランス。7. The primary coil and the secondary coil are both formed in a spiral shape, the primary coil is arranged on one surface of the insulating base material, and the secondary coil is formed on the other surface of the insulating base material. 7. The transformer according to claim 6, wherein the transformer is arranged so that the primary coil and the secondary coil face each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6160807A JPH0831640A (en) | 1994-07-13 | 1994-07-13 | Inductance and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6160807A JPH0831640A (en) | 1994-07-13 | 1994-07-13 | Inductance and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0831640A true JPH0831640A (en) | 1996-02-02 |
Family
ID=15722863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6160807A Withdrawn JPH0831640A (en) | 1994-07-13 | 1994-07-13 | Inductance and transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0831640A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014049528A (en) * | 2012-08-30 | 2014-03-17 | Alps Green Devices Co Ltd | Inductor and manufacturing method thereof |
| KR101397604B1 (en) * | 2012-12-04 | 2014-05-27 | 주식회사 에스엘 서봉 | Automotive lamp assembly and manufacturing method for the same |
| CN104425097A (en) * | 2013-09-05 | 2015-03-18 | 重庆美桀电子科技有限公司 | Thin combined inductor structure and assembly method thereof |
| US20150101854A1 (en) * | 2013-10-10 | 2015-04-16 | Analog Devices, Inc. | Miniature planar transformer |
| JP2016001992A (en) * | 2010-01-23 | 2016-01-07 | ソーラーワット リミテッド | Photovoltaic system for power generation |
| US9959967B2 (en) | 2014-05-15 | 2018-05-01 | Analog Devices, Inc. | Magnetic devices and methods for manufacture using flex circuits |
| JP2019165185A (en) * | 2018-03-20 | 2019-09-26 | スミダコーポレーション株式会社 | Coil component |
-
1994
- 1994-07-13 JP JP6160807A patent/JPH0831640A/en not_active Withdrawn
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016001992A (en) * | 2010-01-23 | 2016-01-07 | ソーラーワット リミテッド | Photovoltaic system for power generation |
| JP2014049528A (en) * | 2012-08-30 | 2014-03-17 | Alps Green Devices Co Ltd | Inductor and manufacturing method thereof |
| KR101397604B1 (en) * | 2012-12-04 | 2014-05-27 | 주식회사 에스엘 서봉 | Automotive lamp assembly and manufacturing method for the same |
| CN104425097A (en) * | 2013-09-05 | 2015-03-18 | 重庆美桀电子科技有限公司 | Thin combined inductor structure and assembly method thereof |
| US20150101854A1 (en) * | 2013-10-10 | 2015-04-16 | Analog Devices, Inc. | Miniature planar transformer |
| CN104851579A (en) * | 2013-10-10 | 2015-08-19 | 美国亚德诺半导体公司 | Miniature planar transformer |
| US10141107B2 (en) * | 2013-10-10 | 2018-11-27 | Analog Devices, Inc. | Miniature planar transformer |
| US9959967B2 (en) | 2014-05-15 | 2018-05-01 | Analog Devices, Inc. | Magnetic devices and methods for manufacture using flex circuits |
| JP2019165185A (en) * | 2018-03-20 | 2019-09-26 | スミダコーポレーション株式会社 | Coil component |
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