JPS63116412A - Printed coil and regulating method for its inductance - Google Patents

Printed coil and regulating method for its inductance

Info

Publication number
JPS63116412A
JPS63116412A JP26331386A JP26331386A JPS63116412A JP S63116412 A JPS63116412 A JP S63116412A JP 26331386 A JP26331386 A JP 26331386A JP 26331386 A JP26331386 A JP 26331386A JP S63116412 A JPS63116412 A JP S63116412A
Authority
JP
Japan
Prior art keywords
coil
inductance
short
adjustment
patterns
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP26331386A
Other languages
Japanese (ja)
Inventor
Hideomi Hayashi
秀臣 林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
Original Assignee
Fujikura Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP26331386A priority Critical patent/JPS63116412A/en
Publication of JPS63116412A publication Critical patent/JPS63116412A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/0006Printed inductances
    • H01F2017/0053Printed inductances with means to reduce eddy currents

Abstract

PURPOSE:To regulate the inductance of a printed coil by short-circuiting both ends of a plurality of looplike patterns, connecting in series a regulating coil and a main coil having separating parts near one end of each pattern, and slide pieces for short-circuiting the patterns therebetween, and magnetically coupling them. CONSTITUTION:A main coil is formed of a spiral conductive pattern formed on a substrate 20. A regulating coil 30 is formed by providing 3 concentric looplike patterns 31, 32 which do not cross each other on a substrate 40. Short- circuiting wirings 51, 52 are provided at both ends, and all patterns are shortcircuited. Separating parts 61, 62, 63 are provided near the wiring 51. Further, separating parts 66, 67, 68 are provided near the wiring 52. A slide piece 50 for short-circuiting the patterns 31-33 therebetween is provided. Various inductances can be regulated by applying the variation of the position of a slide piece 70 to the combination of closing arbitrary one, two or three of the parts 61-63 and 66-68.

Description

【発明の詳細な説明】 [産業上の利用分野] この発明は、電子機器用の小型コイルに用いるプリント
コイルと、そのインダクタンスの調整方法に関するもの
である。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a printed coil used in a small coil for electronic equipment and a method for adjusting its inductance.

[従来の技術] pJS9図にその一例を示す。[Conventional technology] An example is shown in Figure pJS9.

10は主コイルで、渦巻形の導電パターンを、基板20
上に形成したものである。
10 is the main coil, which has a spiral conductive pattern on the substrate 20.
It is formed on top.

このような渦巻形のコイルのインダクタンスは、外側の
半径Rが大きいほど大きく、また巻数が多いほど大きい
The inductance of such a spiral coil increases as the outer radius R increases, and as the number of turns increases.

そこで、インダクタンスを調整するためには、A端子を
コイルの円周に沿って移動させることにより減少させる
という方法をとる。
Therefore, in order to adjust the inductance, a method is used to reduce the inductance by moving the A terminal along the circumference of the coil.

[発明が解決しようとする問題点] しかし、上記の方法↑は、接続点が動くため、コイルを
組込んだ後の調整が不便であり、コイルの設置場所や引
出し線の構造に難点があった。
[Problems to be solved by the invention] However, in the above method ↑, the connection point moves, making it inconvenient to adjust after installing the coil, and there are difficulties in the installation location of the coil and the structure of the lead wire. Ta.

[問題点を解決するための手段] この発明は、上記の問題を解決し、接続端子を動かすこ
となく、広い範囲にわたってインダクタンスの調整がで
きるようにしたもので、第1の発明は、第1〜3図のよ
うに、互いに交差しないループ状パターン31.32−
−−を複数木蓮べ、両端を短絡し、少なくとも片端近く
に切離し部分61,62.−−−−を設けるとともに、
各パターン間を短絡する摺動片70を設けて形成した調
整コイル30を、渦巻形の導電パターンからなる主コイ
ル10に、直列に接続するとともに、調整コイル30と
主コイル10とを、それぞれの発生する磁束が互いに影
響し合う位置に配置したことを特徴とするプリントコイ
ルである。
[Means for Solving the Problems] The present invention solves the above problems and makes it possible to adjust the inductance over a wide range without moving the connection terminals. ~As shown in Figure 3, loop-shaped patterns that do not intersect with each other 31.32-
--, connect a plurality of magnolias, short-circuit both ends, and cut off the parts 61, 62 . In addition to providing -----,
The adjustment coil 30 formed by providing a sliding piece 70 that short-circuits each pattern is connected in series to the main coil 10 made of a spiral conductive pattern, and the adjustment coil 30 and the main coil 10 are connected to each other in series. This printed coil is characterized by being arranged at a position where the generated magnetic fluxes influence each other.

また、第2の発明は、上記切離し部分61゜62、−−
−一を閉じ、かつ摺動片70をスライドさせることを特
徴とする、プリントコイルのインダクタンスの調整方法
である。
Further, the second invention provides the above-mentioned separated portions 61°62, --
- This is a method for adjusting the inductance of a printed coil, which is characterized by closing the first coil and sliding the sliding piece 70.

[第1実施例] (第1〜3図) このプリントコイルは、上記のように第1図に示される
主コイル10と、t52図に示される調整コイル30と
からなる。
[First Embodiment] (Figs. 1 to 3) As described above, this printed coil consists of the main coil 10 shown in Fig. 1 and the adjustment coil 30 shown in Fig. t52.

主コイル10は: 第1図のように、基板20上に形成した渦巻形の導電パ
ターンからなる。A、Bは、コイル両端の端子である。
The main coil 10 consists of a spiral conductive pattern formed on a substrate 20, as shown in FIG. A and B are terminals at both ends of the coil.

第2図は調整コイル30を示す。FIG. 2 shows the adjustment coil 30.

これは次のようになっている。すなわち、基板40上に
、多数の、互いに交差しない、たとえば同心円状の3本
のループ状パターン31,32゜を設ける。
It looks like this: That is, a large number of concentric loop patterns 31 and 32 degrees, for example, three loop patterns 31 and 32 degrees, which do not intersect with each other, are provided on the substrate 40.

それらの両端に短絡線51.52を設けて、すべてのパ
ターンを短絡する。
Shorting wires 51 and 52 are provided at both ends to short-circuit all the patterns.

短絡線51の近くに、切離し部分61,62゜63を設
ける。また、短絡線52の近くに、切離し部分66.6
7.68を設ける。
Close to the shorting line 51, cut-off portions 61, 62, 63 are provided. Also, near the shorting wire 52, a disconnection portion 66.6 is provided.
7.68 shall be provided.

ループ状パターン31〜33間を短絡することのできる
摺動片70を、少なくとも1本設ける。
At least one sliding piece 70 capable of short-circuiting between the loop patterns 31 to 33 is provided.

C,Dは両端の端子である。C and D are terminals at both ends.

第3図に全体のコイル構造を示す。Figure 3 shows the overall coil structure.

たとえば、基板20の同じ面に、主コイル1゜の外側に
、調整=l(lL/30を同心状に配置する。
For example, on the same side of the substrate 20, adjustment=l(lL/30) are placed concentrically outside the main coil 1°.

調整コイル30のD端子と主コイル10のA端子とを接
続する。
The D terminal of the adjustment coil 30 and the A terminal of the main coil 10 are connected.

主コイル10と調整コイル30とは、同心状に配置され
るので、それぞれの磁束は互いに影響し合う。
Since the main coil 10 and the adjustment coil 30 are arranged concentrically, their respective magnetic fluxes influence each other.

この場合は、主コイル10と調整コイル3oを流れる電
流の方向が同じであるから、調整コイル30のインダク
タンスは主コイルlOのインダクタンスに対してプラス
に作用する。
In this case, since the directions of the currents flowing through the main coil 10 and the adjustment coil 3o are the same, the inductance of the adjustment coil 30 acts positively on the inductance of the main coil IO.

−イン   ンス ・ 上記のように、ループ状コイルのインダクタンスは、そ
の半径が大きいほど大になる。
-Incance ・As mentioned above, the inductance of a loop-shaped coil increases as its radius increases.

そこで、ff13図において、内側の切離し部分61と
66とを閉じる(たとえばハンダ付けなどにより電気的
に接続する)と、調整コイル30はループ状パターン最
小径の31になるから、調整コイル30のインダクタン
スは最小になる。
Therefore, in Figure ff13, when the inner separated parts 61 and 66 are closed (for example, electrically connected by soldering), the adjustment coil 30 becomes 31, which is the minimum diameter of the loop pattern, so the inductance of the adjustment coil 30 becomes the minimum.

なおこのとき摺動片70は何の働きもしない。Note that the sliding piece 70 does not perform any function at this time.

また、たとえば、切離し部分61と67とを閉じると、
電流は、端子C〜摺動片70間はループ状パターン31
を流れ、摺動片70〜端子り間はループ状パターン32
を流れるから、摺動片70をスライドすることにより、
コイルの面積が連続的に変化し、従ってインダクタンス
の値も変化する。
Also, for example, when the separated parts 61 and 67 are closed,
The current flows through a loop pattern 31 between the terminal C and the sliding piece 70.
A loop pattern 32 is formed between the sliding piece 70 and the terminal.
By sliding the sliding piece 70,
The area of the coil changes continuously and therefore the value of the inductance also changes.

したがって、切離し部分61〜63、および66〜68
のうちの任意の1つまたは2つまたは3つを閉じる組合
せに、摺動片70の位置の変化を加えることにより、非
常に多様なインダクタンスの調整が可能になる。
Therefore, the cutaway portions 61-63 and 66-68
By adding changes in the position of the sliding piece 70 to the combination of closing any one, two, or three of them, a wide variety of inductance adjustments can be made.

なお、ループ状パターン33の切離し部分63と68だ
けを閉じたとき、インダクタンスは最大になる。
Note that when only the separated portions 63 and 68 of the loop pattern 33 are closed, the inductance becomes maximum.

また、ループ状パターン31,32.33の中心からの
距離は、インダクタンスの調整範囲に応じて離間させる
Furthermore, the distances from the center of the loop patterns 31, 32, and 33 are set according to the inductance adjustment range.

調整幅を大きくするには、第4図のように、最外周のル
ープ状パターン33を大きく外側になるようにすればよ
い。
In order to increase the adjustment range, the outermost loop pattern 33 may be moved outward as shown in FIG.

インダクタンスの調整は、第3図のC,B端子間にイン
ダクタンスメ゛−夕を接続し、測定しながら行なう。
The inductance is adjusted by connecting an inductance meter between terminals C and B in FIG. 3 and measuring it.

調整が終了したら、摺動片70はハンダ付けなどにより
固定する。
After the adjustment is completed, the sliding piece 70 is fixed by soldering or the like.

なお、上記の説明では、主コイル10.調整コイル30
ともそれぞれ1つだけであったが、両方とも多数用いる
場合がある。
In addition, in the above description, the main coil 10. Adjustment coil 30
There was only one of each, but there are cases where a large number of both are used.

第5図は、調整コイル30を最も簡潔にした場合である
FIG. 5 shows the case where the adjustment coil 30 is made simplest.

ループ状パターン31.32の2木だけで、また、短絡
線51近くに切離し部分61.62を設け、52近くに
切離し部分63を設ける。
Only two loop patterns 31 and 32 are provided, and a cut-off portion 61.62 is provided near the shorting line 51, and a cut-off portion 63 is provided near the short-circuit line 52.

これだけでも相当の幅のインダクタンスの調整かでさる
This alone requires a considerable amount of inductance adjustment.

[第2実施例] (第6図) 主コイル10と調整コイル30とを背中合わせに設ける
これは折畳式である。第6図は、少し開いた状態として
示しているが、実際は想像線のように重なっている。 
第6図の場合は主コイル10、調整コイル30を同じ方
向に電流が流れるので、調整コイル30のインダクタン
スは主コイル10に対してプラスに作用する。
[Second Embodiment] (Fig. 6) This is a foldable type in which the main coil 10 and the adjustment coil 30 are provided back to back. Although FIG. 6 shows them in a slightly open state, they actually overlap as shown by imaginary lines.
In the case of FIG. 6, since current flows in the same direction through the main coil 10 and the adjustment coil 30, the inductance of the adjustment coil 30 acts positively on the main coil 10.

もしAICに接続すれば、調整コイル30のインダクタ
ンスはマイナスに作用する。
If connected to the AIC, the inductance of the adjustment coil 30 will have a negative effect.

インダクタンスの調整方法は、第1実施例の場合と同じ
である。
The inductance adjustment method is the same as in the first embodiment.

なお、折畳式とせずに、別々の基板に作ったものを重ね
合わせ、表裏一体的にしてもよい。
In addition, instead of making it a folding type, it is also possible to make the front and back sides integral by stacking the sheets made on separate substrates.

[第3実施例] (第7.8図) 主コイルio、tA整コイル30の組合せの上に、強磁
性体80(鉄、フェライトなど)をかぶせるという公知
の方式を追加する。
[Third Embodiment] (Fig. 7.8) A known method is added in which a ferromagnetic material 80 (iron, ferrite, etc.) is covered on the combination of the main coil io and the tA adjustment coil 30.

調整コイル30と相対する強磁性体80の面には、窓8
2を設け、上記のインダクタンスの調整作業ができるよ
うにする。
A window 8 is provided on the surface of the ferromagnetic material 80 facing the adjustment coil 30.
2 to enable the above-mentioned inductance adjustment work.

[発明の効果1 (1)接続端子を動かすことなく、インダクタンスの調
整ができる。
[Effect of the invention 1 (1) Inductance can be adjusted without moving the connection terminal.

(2)1個のコイルでインダクタンスを可変することが
できる。
(2) Inductance can be varied with one coil.

(3)摺動片70をスライドさせるので、インダクタン
スの調整が連続的になる。
(3) Since the sliding piece 70 is slid, the inductance can be adjusted continuously.

【図面の簡単な説明】[Brief explanation of the drawing]

第1〜3図は本発明の第1実施例に関し、第1図は主コ
イル10の説明図、 第2図は調整コイル30の説明図、 第3図は、主コイル10と調整コイル30の組合せ方の
説明図、 第4図は調整コイル30の変形例の説明図、第5図は最
も簡単な調整コイル30の説明図、tJSB図は第2実
施例の説明図、 第7図は第3実施例の縦断面の説明図、第8図は同底面
図、 第9図は従来技術の説明図。 lO:主コイル   20:基板 30:調整コイル 31.32,33:ルーブ状パターン 40:基板     51,52:短絡線61.62,
63:切離し部分 66.67.68:切離し部分 70:WJ動片 80:強磁性体   82:窓
1 to 3 relate to the first embodiment of the present invention, FIG. 1 is an explanatory diagram of the main coil 10, FIG. 2 is an explanatory diagram of the adjusting coil 30, and FIG. 3 is an explanatory diagram of the main coil 10 and the adjusting coil 30. 4 is an explanatory diagram of a modified example of the adjustment coil 30, FIG. 5 is an explanatory diagram of the simplest adjustment coil 30, tJSB is an explanatory diagram of the second embodiment, and FIG. 7 is an explanatory diagram of the second embodiment. FIG. 8 is a bottom view of the third embodiment, and FIG. 9 is an explanatory diagram of the prior art. lO: Main coil 20: Substrate 30: Adjustment coil 31, 32, 33: Lube pattern 40: Substrate 51, 52: Shorting wire 61, 62,
63: Separated portion 66.67.68: Separated portion 70: WJ moving piece 80: Ferromagnetic material 82: Window

Claims (3)

【特許請求の範囲】[Claims] (1)互いに交差しないループ状パターン31、32−
−−を複数本並べ、両端を短絡し、少なくとも片端近く
に切離し部分61、72、−−−−を設けるとともに、
各パターン間を短絡する摺動片70を設けて形成した調
整コイル30を、渦巻形の導電パターンからなる主コイ
ル10に、直列に接続するとともに、調整コイル30と
主コイル10とを、それぞれの発生する磁束が互いに影
響し合う位置に配置したことを特徴とする、プリントコ
イル。
(1) Loop patterns 31, 32- that do not intersect with each other
--- are lined up, both ends are short-circuited, and cut-off portions 61, 72, --- are provided near at least one end, and
The adjustment coil 30 formed by providing a sliding piece 70 that short-circuits each pattern is connected in series to the main coil 10 made of a spiral conductive pattern, and the adjustment coil 30 and the main coil 10 are connected to each other in series. A printed coil characterized by being placed in a position where the generated magnetic flux influences each other.
(2)調整コイル30が主コイル10の外周に位置する
ことを特徴とする、特許請求の範囲第1項に記載のプリ
ントコイル。
(2) The printed coil according to claim 1, wherein the adjustment coil 30 is located on the outer periphery of the main coil 10.
(3)互いに交差しないループ状パターン31、32−
−−を複数本並べ、両端を短絡し、少なくとも片端近く
に切離し部分61、62、−−−−を設けるとともに、
各パターン間を短絡する摺動片70を設けて形成した調
整コイル30を、渦巻形の導電パターンからなる主コイ
ル10に、直列に接続するとともに、調整コイル30と
主コイル10とを、それぞれの発生する磁束が互いに影
響し合う位置に配置しておき、 前記切離し部分を閉じ、かつ摺動片70をスライドさせ
ることを特徴とする、プリントコイルのインダクタンス
の調整方法。
(3) Loop patterns 31, 32- that do not intersect with each other
--- are lined up, both ends are short-circuited, and cut-off portions 61, 62, --- are provided near at least one end, and
The adjustment coil 30 formed by providing a sliding piece 70 that short-circuits each pattern is connected in series to the main coil 10 made of a spiral conductive pattern, and the adjustment coil 30 and the main coil 10 are connected to each other in series. A method for adjusting the inductance of a printed coil, characterized by placing the printed coils at positions where the generated magnetic fluxes influence each other, closing the separated portion, and sliding the sliding piece 70.
JP26331386A 1986-11-05 1986-11-05 Printed coil and regulating method for its inductance Pending JPS63116412A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26331386A JPS63116412A (en) 1986-11-05 1986-11-05 Printed coil and regulating method for its inductance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP26331386A JPS63116412A (en) 1986-11-05 1986-11-05 Printed coil and regulating method for its inductance

Publications (1)

Publication Number Publication Date
JPS63116412A true JPS63116412A (en) 1988-05-20

Family

ID=17387741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26331386A Pending JPS63116412A (en) 1986-11-05 1986-11-05 Printed coil and regulating method for its inductance

Country Status (1)

Country Link
JP (1) JPS63116412A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05128324A (en) * 1991-11-07 1993-05-25 Mitsubishi Electric Corp Non-contact card, terminal machine for non-contact card, and non-contact transmission system
JP2007310898A (en) * 2007-06-25 2007-11-29 Seiko Epson Corp Non-contact type ic module and method for manufacturing non-contact type ic module
JP2010205939A (en) * 2009-03-03 2010-09-16 Asahi Kasei Electronics Co Ltd Variable inductor, and voltage-controlled oscillator
WO2023111823A1 (en) * 2021-12-13 2023-06-22 3M Innovative Properties Company Coil assembly

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05128324A (en) * 1991-11-07 1993-05-25 Mitsubishi Electric Corp Non-contact card, terminal machine for non-contact card, and non-contact transmission system
JP2007310898A (en) * 2007-06-25 2007-11-29 Seiko Epson Corp Non-contact type ic module and method for manufacturing non-contact type ic module
JP4661833B2 (en) * 2007-06-25 2011-03-30 セイコーエプソン株式会社 Non-contact type IC module and method of manufacturing non-contact type IC module
JP2010205939A (en) * 2009-03-03 2010-09-16 Asahi Kasei Electronics Co Ltd Variable inductor, and voltage-controlled oscillator
WO2023111823A1 (en) * 2021-12-13 2023-06-22 3M Innovative Properties Company Coil assembly

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