JPH05234779A - Flat coil - Google Patents
Flat coilInfo
- Publication number
- JPH05234779A JPH05234779A JP4070185A JP7018592A JPH05234779A JP H05234779 A JPH05234779 A JP H05234779A JP 4070185 A JP4070185 A JP 4070185A JP 7018592 A JP7018592 A JP 7018592A JP H05234779 A JPH05234779 A JP H05234779A
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- flat
- coil
- ribs
- core
- 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.)
- Granted
Links
Landscapes
- Insulating Of Coils (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は扁平コアに２枚のハシ
ゴ状の扁平ボビンを被せてその上にコイルを巻装したイ
ンバータ電源等における高周波トランスに用いて好適な
扁平コイルに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat coil suitable for a high frequency transformer in an inverter power source or the like in which a flat core is covered with two ladder-shaped flat bobbins and a coil is wound on the flat bobbin.
【０００２】[0002]
【従来の技術】枠形窓孔付ボビンにコイルを巻装した例
としては従来例えば実開昭５７−１３８３０４号公報記
載のものがある。2. Description of the Related Art As an example in which a coil is wound around a bobbin having a frame-shaped window hole, there is a conventional one described in Japanese Utility Model Laid-Open No. 57-138304.
【０００３】この従来の技術はボビンのコイル巻装部に
窓孔を設け、このボビンに内装するコアの一部を上記窓
孔に嵌合させたコイルである。This prior art is a coil in which a window is provided in a coil winding portion of a bobbin, and a part of a core installed in the bobbin is fitted in the window hole.
【０００４】[0004]
【発明が解決しようとする課題】前記した従来の技術は
横断面が正方形に近いコアを鍔付のカゴ枠形のボビンに
挿入したコイルであるので、縦、横、高さがそれぞれ均
等割合いのいわゆるズングリした立体コイルしか得られ
ず、回路基板の扁平化を大きく阻害する原因となってい
た。The prior art described above is a coil in which a core whose cross section is close to a square is inserted into a bobbin of a cage frame with a collar, so that the length, width, and height are equal to each other. However, only a so-called three-dimensional coil is obtained, which is a cause of greatly obstructing flattening of the circuit board.
【０００５】なお単なる扁平コイルとしては古くからナ
ツカシの鉱石ラジオに用いるスパイダーコイルやループ
アンテナコイルが有ったが、これらの扁平コイルは空心
であって効率低く、しかも巻線が面倒で自動巻きが不可
能であるという問題点があった。As a mere flat coil, there have been spider coils and loop antenna coils used for Natsukashi's ore radio for a long time, but these flat coils are air-core and have low efficiency, and the winding is troublesome and automatic winding is possible. There was a problem that it was impossible.
【０００６】この発明は前記した各問題点を除去するた
めに、扁平コアを挟んで一対の扁平なハシゴ形ボビン素
片を合着し、その橋絡片間の外面にコイルを巻装するこ
とで、各コイル間のアイソレーションを良好に維持でき
る扁平トランスを安価に提供することを目的とする。According to the present invention, in order to eliminate the above-mentioned problems, a pair of flat ladder-shaped bobbin pieces are attached with a flat core sandwiched between them, and a coil is wound around the outer surface between the bridging pieces. Then, it aims at providing the flat transformer which can maintain the isolation between each coil favorably at low cost.
【０００７】[0007]
【課題を解決するための手段】上記したこの発明の目的
は、プラスチックをほぼハシゴ状に成形した対をなすボ
ビン素片の対向リブ間にこれら各リブの外面同志を連結
する複数の橋絡片を形成すると共に左右の側板を形成し
てこれら各側板の内面から前記対向リブの終端を突出さ
せ、これら各終端の外縁と前記対向リブの内縁間に肉厚
方向の下半分を嵌合納置したＩ字状の扁平コアの肉厚方
向の上半分に他のボビン素片を上記と同様に嵌合して被
せ、前記対向リブの外面にコイルを巻装することで達成
できる。DISCLOSURE OF THE INVENTION The above-mentioned object of the present invention is to provide a plurality of bridging pieces for connecting the outer surfaces of the respective ribs between opposing ribs of a pair of bobbin pieces formed of plastic in a substantially ladder shape. And the left and right side plates are formed to project the ends of the facing ribs from the inner surfaces of these side plates, and the lower half in the thickness direction is fitted and stored between the outer edges of these ends and the inner edges of the facing ribs. This can be achieved by fitting the other half of the I-shaped flat core in the thickness direction with another bobbin piece in the same manner as described above, and winding the coil around the outer surface of the facing rib.
【０００８】なお扁平コアの幅広側縁間に外磁路コアを
定着してもよく、さらに対をなすボビン素片の左右の側
板の対向ギャップ内に端子板を挟着してもよい。The outer magnetic path core may be fixed between the wide side edges of the flat core, and the terminal plate may be sandwiched between the facing gaps of the left and right side plates of the pair of bobbin pieces.
【０００９】[0009]
【作用】プラスチックをほぼハシゴ状に成形した対をな
すボビン素片の対向リブ間に肉厚方向の下半分を嵌合納
置したＩ字状の扁平コアの肉厚方向の上半分に他のボビ
ン素片を上記と同様に嵌合して被せたので、前記対向リ
ブの外面にコイルを巻装するに当り、扁平コアに対しボ
ビン素片が妄りに揺れ動いたり外れたりすることがな
く、コイルを美しく整然と素早く巻装できる。Operation: The lower half of the thickness direction is fitted between the opposing ribs of the pair of bobbin pieces formed of plastic in a substantially ladder shape, and the lower half of the I-shaped flat core is placed in the upper half of the thickness direction. Since the bobbin piece was fitted and covered in the same manner as described above, when winding the coil on the outer surface of the facing rib, the bobbin piece did not unnecessarily sway or come off with respect to the flat core. Can be wrapped beautifully, neatly and quickly.
【００１０】また各橋絡片でこれらの間に巻装した前記
コイル間の絶縁は良好に維持できる。Further, the insulation between the coils wound between the bridge pieces can be maintained well.
【００１１】さらに扁平コアの幅広側縁間に外磁路コア
を定着すれば閉磁路タイプのコア付コイルとなり、その
インダクタンスを増大させ得る。Further, if the outer magnetic circuit core is fixed between the wide side edges of the flat core, a closed magnetic circuit type coil with a core is formed, and its inductance can be increased.
【００１２】さらにまた対をなすボビン素片の左右の側
板の対向ギャップ内に端子板を挟着すれば、コイルのリ
ード線処理が確実に行えると共に、プリント基板等外部
回路部材への実装が容易かつ確実に実現できる。Further, by sandwiching the terminal plates in the facing gaps of the left and right side plates of the pair of bobbin pieces, the lead wire of the coil can be surely processed and mounted on the external circuit member such as the printed circuit board easily. And surely it can be realized.
【００１３】[0013]
【実施例】実施例について図面を参照して説明する。先
ずこの発明の基本構成は図１、図２に示すように、フェ
ノール樹脂などの耐熱性プラスチックをほぼハシゴ状に
成形した対をなすボビン素片1,1 の対向リブ2,2 間にこ
れら各リブの外面同志を連結する複数の橋絡片3,3 を形
成すると共に左右の側板4,4 を形成してこれら各側板4,
4 の内面から前記対向リブ2,2 の終端2ａ,2ａを突出さ
せる。EXAMPLES Examples will be described with reference to the drawings. First, as shown in FIGS. 1 and 2, the basic structure of the present invention is such that a pair of bobbin pieces 1,1 formed by molding a heat-resistant plastic such as a phenol resin into a substantially ladder shape are provided between opposing ribs 2,2 of each of these. Forming a plurality of bridging pieces 3,3 that connect the outer surfaces of the ribs and forming left and right side plates 4,4,
The end portions 2a, 2a of the facing ribs 2, 2 are projected from the inner surface of 4.
【００１４】そしてこれら各終端 2ａ,2ａの外縁と前記
対向リブ2,2 の内縁とに接して肉厚方向の下半分を図２
のように嵌合納置したＩ字状の扁平コア5 の肉厚方向の
上半分に他のボビン素片1 を上記と同様に各図のように
嵌合して被せ、前記対向リブ2,2 の外面に図４のように
コイルＬを巻装してこの発明による扁平コイルを構成す
る。Then, the lower half in the thickness direction is in contact with the outer edge of each of the end portions 2a, 2a and the inner edge of the opposing ribs 2, 2 as shown in FIG.
The bobbin element 1 is fitted on the upper half of the thickness direction of the I-shaped flat core 5 fitted and stored as shown in FIG. A coil L is wound around the outer surface of 2 as shown in FIG. 4 to form a flat coil according to the present invention.
【００１５】なお前記扁平コア5 には絶縁被膜を形成し
たものを用いれば高電圧用のコイルとなし得る。If the flat core 5 having an insulating coating is used, it can be used as a coil for high voltage.
【００１６】また扁平コア5 の幅広側縁 5ａ,5ａ間に図
７に示すように外磁路コア6 を定着すれば、コイルＬの
インダクタンスを大きくできる。If the outer magnetic path core 6 is fixed between the wide side edges 5a, 5a of the flat core 5 as shown in FIG. 7, the inductance of the coil L can be increased.
【００１７】さらに対をなすボビン素片1,1 の左右の側
板4,4 の対向ギャップｇ内に端子ピン 7ａを有する端子
板7 を図６、図７のように挟着すれば、コイルＬ，Ｌの
リード線処理を容易かつ確実に実行でき、図６のように
回路基板Ｐに対するハンダ付け実装が容易に実現する。Further, if the terminal plate 7 having the terminal pin 7a is sandwiched in the facing gap g between the left and right side plates 4, 4 of the pair of bobbin pieces 1, 1 as shown in FIGS. , L lead wires can be easily and surely executed, and solder mounting on the circuit board P can be easily realized as shown in FIG.
【００１８】なおボビン素片1 には図８のような単純な
ハシゴ形のものを用いてもよい。またボビン素片1 を縦
横対称に作れば、合接方向の自由度が広がる。As the bobbin piece 1, a simple ladder-shaped piece as shown in FIG. 8 may be used. If the bobbin element 1 is made symmetrical in the vertical and horizontal directions, the degree of freedom in the joining direction is expanded.
【００１９】この発明の扁平コイルは以上のような構成
のもので、以下その作用を具体的に説明する。プラスチ
ックをほぼハシゴ状に成形した対をなすボビン素片1,1
の対向リブ2,2 間に図２のように肉厚方向の下半分を嵌
合納置したＩ字状の扁平コア5 の肉厚方向の上半分に他
のボビン素片1 を上記と同様に各図のように嵌合して被
せたので、前記対向リブ2,2 の外面にコイルＬを巻装す
るに当り、扁平コア5 に対しボビン素片1,1 が妄りに揺
れ動いたり外れたりしないので、コイルＬを美しく整然
と素早く巻装できる。The flat coil of the present invention is constructed as described above, and its operation will be specifically described below. A pair of bobbin pieces made of plastic molded into a ladder shape 1,1
As shown in Fig. 2, the other half of the bobbin element 1 is attached to the upper half of the I-shaped flat core 5 in which the lower half in the thickness direction is fitted between the facing ribs 2 and 2 of the same. Since the coil L is fitted and covered as shown in each figure, when the coil L is wound on the outer surface of the facing ribs 2,2, the bobbin element 1,1 may sway or come off with respect to the flat core 5. Since it does not, the coil L can be wound beautifully, orderly and quickly.
【００２０】また各橋絡片3,3 でこれらの間に図４のよ
うに巻装した前記コイルＬ，Ｌ間の絶縁は良好に維持で
きる。Further, the insulation between the coils L, L wound between the bridging pieces 3, 3 as shown in FIG. 4 can be maintained well.
【００２１】さらに扁平コア5 の幅広側縁 5ａ,5ａ間に
図７のように外磁路コア6 を定着すれば、閉磁路タイプ
のコア付コイルとなり、そのインダクタンスを増大させ
得る。Further, if the outer magnetic path core 6 is fixed between the wide side edges 5a, 5a of the flat core 5 as shown in FIG. 7, a closed magnetic circuit type coil with a core can be obtained and its inductance can be increased.
【００２２】さらにまた対をなすボビン素片1,1 の左右
の側板4,4 の対向ギャップｇ内に端子ピン 7ａを有する
端子板7 を図６のように挟着すれば、コイルＬ，Ｌのリ
ード線処理が確実に行えると共に、プリント基板等外部
回路部材Ｐへの実装が容易かつ確実に実現できる。If the terminal plate 7 having the terminal pin 7a is sandwiched in the facing gap g of the left and right side plates 4,4 of the pair of bobbin pieces 1,1 as shown in FIG. The lead wire processing can be reliably performed, and mounting on the external circuit member P such as a printed circuit board can be easily and reliably realized.
【００２３】[0023]
【発明の効果】この発明は以上説明したように構成した
ので、以下に記載の効果を奏する。請求項１の扁平コイ
ルは全体として扁平なコイルが実現できるという第１の
効果が有ると共に、ハシゴ状ボビン素片の２枚はＩ字状
の扁平コアにキツク嵌着しているのでボビンの橋絡片間
にコイルを整然と素早く巻装でき、ボビン素片1,1を２
枚合せにしたので扁平コア5 の厚みのバラツキを良く吸
収できるという第２、第３の効果も有る。Since the present invention is configured as described above, it has the following effects. The flat coil according to claim 1 has a first effect that a flat coil can be realized as a whole, and since two pieces of the ladder-shaped bobbin pieces are fitted tightly to the I-shaped flat core, the bobbin bridge is formed. Coils can be quickly and neatly wound between the tangle pieces, and bobbin pieces 1 and 2
Since the flat cores 5 are aligned, variations in thickness of the flat core 5 can be well absorbed, and there are second and third effects.
【００２４】請求項２によれば、外磁路コア6 によりＩ
字状の扁平コア5 と共に閉磁路を形成でき、扁平コイル
のインダクタンスを大きくできる効果を付加できる。According to the second aspect, the outer magnetic path core 6 allows the I
A closed magnetic circuit can be formed together with the character-shaped flat core 5, and the effect of increasing the inductance of the flat coil can be added.
【００２５】請求項３では対をなすボビン素片1,1 の左
右の側板4,4 の対向ギャップｇ内に端子ピン 7ａなどを
有する端子板7 を挟着したので、コイルＬ，Ｌのリード
線処理が確実に行えると共に、プリント基板等外部回路
部材への実装が容易かつ確実に実現できるという効果も
付加できる。In the third aspect, since the terminal plate 7 having the terminal pins 7a and the like is sandwiched in the facing gap g between the left and right side plates 4,4 of the pair of bobbin pieces 1,1, the leads of the coils L, L are attached. It is possible to add the effect that the line processing can be reliably performed and the mounting on an external circuit member such as a printed circuit board can be easily and surely realized.
【図１】コイル巻装前のボビン素片と扁平コアとの組合
せ例を示す斜視図FIG. 1 is a perspective view showing an example of a combination of a bobbin piece and a flat core before winding a coil.
【図２】同上を組合せる直前の状態を示す斜視図FIG. 2 is a perspective view showing a state immediately before combining the above.
【図３】図１に示すものの側面図FIG. 3 is a side view of what is shown in FIG.
【図４】図３のＡ−Ａ線に沿ったコイル巻装済の断面図FIG. 4 is a sectional view taken along the line AA of FIG.
【図５】図３のＢ−Ｂ線に沿ったコイル巻装済の断面図5 is a cross-sectional view taken along line BB of FIG. 3 with the coil wound.
【図６】図４の断線に沿ったコイル巻装済の断面図FIG. 6 is a cross-sectional view taken along the disconnection line in FIG.
【図７】この発明の他の実施例を示す横断平面図FIG. 7 is a cross-sectional plan view showing another embodiment of the present invention.
【図８】ボビン素片の他の例を示す斜視図FIG. 8 is a perspective view showing another example of the bobbin piece.
1 ボビン素片 2 対向リブ 2a 終端 3 橋絡片 4 側板 5 扁平コア 5a 幅広側縁 6 外磁路コア 7 端子板 ｇ 対向ギャップ Ｌ コイル 1 Bobbin element 2 Opposing rib 2a Termination 3 Bridging piece 4 Side plate 5 Flat core 5a Wide side edge 6 Outer magnetic path core 7 Terminal plate g Opposing gap L coil
Claims (3)
対をなすボビン素片1,1 の対向リブ2,2 間にこれら各リ
ブの外面同志を連結する複数の橋絡片3,3 を形成すると
共に左右の側板4,4 を形成してこれら各側板4,4 の内面
から前記対向リブ2,2 の終端 2ａ,2ａを突出させ、これ
ら各終端 2ａ,2ａの外縁と前記対向リブ2,2 の内縁間に
肉厚方向の下半分を嵌合納置したＩ字状の扁平コア5 の
肉厚方向の上半分に他のボビン素片1 を上記と同様に嵌
合して被せ、前記対向リブ2,2の外面にコイルＬを巻装
してなる扁平コイル。1. A plurality of bridging pieces (3, 3) connecting the outer surfaces of these ribs (2, 2) of a pair of bobbin pieces (1, 1) formed by molding plastic into a substantially ladder shape are formed between opposing ribs (2, 2). Along with this, the left and right side plates 4, 4 are formed, and the ends 2a, 2a of the facing ribs 2, 2 are projected from the inner surfaces of these side plates 4, 4, respectively, and the outer edges of these ends 2a, 2a and the facing ribs 2, 2 are formed. The lower half of the bobbin in the thickness direction is fitted between the inner edges of the other, and the upper half of the I-shaped flat core 5 is fitted and covered with another bobbin piece 1 in the same manner as described above. A flat coil formed by winding a coil L on the outer surface of the ribs 2,2.
路コア6 を定着してなる請求項１記載の扁平コイル。2. The flat coil according to claim 1, wherein the outer magnetic path core 6 is fixed between the wide side edges 5a of the flat core 5.
4 の対向ギャップｇ内に端子板7 を挟着してなる請求項
１または２記載の扁平コイル。3. The left and right side plates 4, 4 of the pair of bobbin pieces 1, 1.
The flat coil according to claim 1 or 2, wherein the terminal plate 7 is sandwiched in the facing gap g of 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4070185A JPH0680622B2 (en) | 1992-02-20 | 1992-02-20 | Flat coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4070185A JPH0680622B2 (en) | 1992-02-20 | 1992-02-20 | Flat coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05234779A true JPH05234779A (en) | 1993-09-10 |
| JPH0680622B2 JPH0680622B2 (en) | 1994-10-12 |
Family
ID=13424219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4070185A Expired - Lifetime JPH0680622B2 (en) | 1992-02-20 | 1992-02-20 | Flat coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0680622B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05243061A (en) * | 1992-03-02 | 1993-09-21 | Toudai Musen Kk | Flat coil |
| JPH0579924U (en) * | 1992-04-02 | 1993-10-29 | 東大無線株式会社 | Flat coil |
| JP2008300471A (en) * | 2007-05-30 | 2008-12-11 | Fdk Corp | Choke coil |
-
1992
- 1992-02-20 JP JP4070185A patent/JPH0680622B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05243061A (en) * | 1992-03-02 | 1993-09-21 | Toudai Musen Kk | Flat coil |
| JPH0579924U (en) * | 1992-04-02 | 1993-10-29 | 東大無線株式会社 | Flat coil |
| JP2008300471A (en) * | 2007-05-30 | 2008-12-11 | Fdk Corp | Choke coil |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0680622B2 (en) | 1994-10-12 |
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