JP2000200720A - Surface mount type common mode choke coil - Google Patents
Surface mount type common mode choke coilInfo
- Publication number
- JP2000200720A JP2000200720A JP10377215A JP37721598A JP2000200720A JP 2000200720 A JP2000200720 A JP 2000200720A JP 10377215 A JP10377215 A JP 10377215A JP 37721598 A JP37721598 A JP 37721598A JP 2000200720 A JP2000200720 A JP 2000200720A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- common mode
- mode choke
- core
- mount type
- 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
Links
Landscapes
- Coils Of Transformers For General Uses (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
(57)【要約】
【課題】 内コイルと外コイルの巻数に差がなく、特性
的に優れ、品質の安定した表面実装型コモンモードチョ
ークコイルを提供する。
【解決手段】同心に巻線し、巻数が同一である内コイル
８、外コイル９とから構成される空芯コイル３０を凹状
磁芯に挿入し、板状磁芯で蓋をする。
(57) [Problem] To provide a surface-mount type common mode choke coil which has no difference in the number of turns of an inner coil and an outer coil, is excellent in characteristics, and has stable quality. An air core coil (30) composed of an inner coil (8) and an outer coil (9) wound concentrically and having the same number of turns is inserted into a concave magnetic core and covered with a plate magnetic core.
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電子回路基板に実
装される表面実装型コモンモードチョークコイルに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface mount type common mode choke coil mounted on an electronic circuit board.
【０００２】[0002]
【従来の技術】従来、この種の表面実装型コモンモード
チョークコイルは、図５に示すような圧延して板状にし
た端子６を有する内コイル１、外コイル２からなる空芯
コイル５を、図６に示すように、凹状磁芯４の中心磁脚
１２に挿入し、凹状磁芯４の側壁に沿って折り曲げた
後、板状磁芯３で蓋をし、接着をして組み立てていた。2. Description of the Related Art Conventionally, a surface mount type common mode choke coil of this type includes an air-core coil 5 composed of an inner coil 1 having a rolled and plate-shaped terminal 6 and an outer coil 2 as shown in FIG. As shown in FIG. 6, the core is inserted into the center magnetic leg 12 of the concave magnetic core 4, bent along the side wall of the concave magnetic core 4, covered with the plate-shaped magnetic core 3, and bonded and assembled. Was.
【０００３】また、他の例では、図７に示すような内コ
イル１１、外コイル１２からなる空芯コイル１５を、図
８に示すように、凹状磁芯１４の中心磁脚２２に挿入
し、また、端子を底部に開けられた穴に挿入し、さらに
半田めっき７を施した部分に半田処理をして、板状磁芯
３で蓋をし、接着をして組み立てていた。In another example, an air-core coil 15 composed of an inner coil 11 and an outer coil 12 as shown in FIG. 7 is inserted into a center magnetic leg 22 of a concave magnetic core 14 as shown in FIG. In addition, the terminal is inserted into a hole formed in the bottom portion, and a portion subjected to solder plating 7 is subjected to a soldering treatment, covered with a plate-shaped magnetic core 3 and bonded to be assembled.
【０００４】また、内コイルと外コイルの巻線状態は、
図９に示すように、内コイル１及び１１においては、
１.５，２.５，３.５，４.５，・・・ターン、外コイル
２，１２においては、１，２，３，４，・・・ターンと
なっていた。[0004] The winding state of the inner coil and the outer coil is
As shown in FIG. 9, in the inner coils 1 and 11,
, 1.5, 2.5, 3.5, 4.5,... Turns, and 1, 2, 3, 4,.
【０００５】[0005]
【発明が解決しようとする課題】しかし、このような内
コイルと外コイルでは、巻数が異なっていて、インピー
ダンス特性に差があり、特性的にアンバランスになって
いるため、品質が安定しないという問題点があった。However, since such an inner coil and an outer coil have different numbers of turns, have different impedance characteristics, and are unbalanced in characteristic, the quality is not stable. There was a problem.
【０００６】従って、本発明は、上記の課題を解決し、
内コイルと外コイルの巻数に差がなく、特性的に優れ、
品質の安定した表面実装型コモンモードチョークコイル
を提供することを目的とする。Therefore, the present invention solves the above-mentioned problems,
There is no difference in the number of turns between the inner coil and the outer coil, and the characteristics are excellent.
It is an object of the present invention to provide a surface mount type common mode choke coil having stable quality.
【０００７】[0007]
【課題を解決するための手段】本発明は、内コイルと外
コイルとで構成される空芯コイルと、該内コイルと外コ
イルを収納する板状磁芯と凹状磁芯とで構成される閉磁
路型磁芯とからなり、前記内コイルと外コイルは同心に
巻線し、巻数が同一な表面実装型コモンモードチョーク
コイルである。The present invention comprises an air-core coil composed of an inner coil and an outer coil, and a plate-shaped core and a concave core that house the inner coil and the outer coil. The inner coil and the outer coil are concentrically wound with a closed magnetic circuit type magnetic core, and are surface-mounted common mode choke coils having the same number of turns.
【０００８】[0008]
【発明の実施の形態】以下に、本発明の実施の形態につ
いて図面を参照して説明する。Embodiments of the present invention will be described below with reference to the drawings.
【０００９】図１は、本発明の一実施の形態の表面実装
型コモンモードチョークコイルに用いられる空芯コイル
の説明図である。図１に示すように、空芯コイル３０
は、圧延して板状に形成された端子を有する内コイル
８、外コイル９からなる。これらは、巻数を同一にする
ために、巻始め側の端子１０と巻終わり側の端子１１が
対角に設けられている。このとき、図３に示すように、
内コイル８は、１.２５，２.２５，３.２５，４.２５，
・・・ターン、外コイルは、１.２５，２.２５，３.２
５，４.２５，・・・ターンの巻線状態となっている。
そのため、組み合わせた際、内コイルと外コイルの巻数
が同一の空芯コイルが形成され、図４に示すように、回
路図において、二つの巻線がクロスラインになってい
る。FIG. 1 is an explanatory diagram of an air-core coil used in a surface-mount type common mode choke coil according to an embodiment of the present invention. As shown in FIG.
Consists of an inner coil 8 and an outer coil 9 having terminals formed in a plate shape by rolling. In order to make the number of turns the same, the terminal 10 on the winding start side and the terminal 11 on the winding end side are provided diagonally. At this time, as shown in FIG.
The inner coil 8 has 1.25, 2.25, 3.25, 4.25,
... Turn and outer coils are 1.25, 2.25, 3.2
5, 4.25,... Turns.
Therefore, when combined, an air-core coil having the same number of turns of the inner coil and the outer coil is formed, and as shown in FIG. 4, the two windings are cross lines in the circuit diagram.
【００１０】この空芯コイルを、図６及び図８に示す従
来例と同様に、凹状磁芯に挿入し、端子の処理をした
後、板状磁芯で蓋をし、接着して、本実施の形態の表面
実装型コモンモードチョークコイルを得た。This air-core coil is inserted into a concave magnetic core in the same manner as in the conventional example shown in FIGS. 6 and 8, and after treating the terminals, the coil is covered with a plate-shaped magnetic core and adhered. The surface mount type common mode choke coil of the embodiment was obtained.
【００１１】図１０に、本発明と従来の表面実装型コモ
ンモードコイルのインピーダンス特性図を示した。本発
明の表面実装型コモンモードチョークコイルは、図１０
（ａ）に示すように、巻線Ｎ1、Ｎ2において、インピー
ダンス特性の差がなく、非常に特性的に優れていること
がわかる。一方、図１０（ｂ）に示すように、従来の表
面実装型コモンモードチョークコイルは、インピーダン
ス特性の差があることがわかる。FIG. 10 shows an impedance characteristic diagram of the present invention and a conventional surface mount type common mode coil. The surface mount type common mode choke coil according to the present invention is shown in FIG.
As shown in (a), there is no difference in impedance characteristics between the windings N 1 and N 2 , and it is understood that the windings N 1 and N 2 are very excellent in characteristics. On the other hand, as shown in FIG. 10B, it can be seen that the conventional surface mount type common mode choke coil has a difference in impedance characteristics.
【００１２】図２は、本発明の他の実施の形態における
表面実装型コモンモードチョークコイルに用いられる空
芯コイルの斜視図である。図２に示すように、空芯コイ
ル４０は、内コイル１８、外コイル１９からなり、巻数
を同一にするために、巻始め側の端子２６と巻終わり側
の端子２７が対角に設けられている。巻線状態は、上記
と同様である。この空芯コイルを用いて表面実装型コモ
ンモードチョークコイルを組み立て、特性を比較したと
ころ、上記と同様な結果が得られた。FIG. 2 is a perspective view of an air core coil used in a surface mount type common mode choke coil according to another embodiment of the present invention. As shown in FIG. 2, the air core coil 40 includes an inner coil 18 and an outer coil 19, and a winding start terminal 26 and a winding end terminal 27 are provided diagonally in order to make the number of turns the same. ing. The winding state is the same as above. A surface-mounted common mode choke coil was assembled using this air-core coil, and the characteristics were compared. The same result as above was obtained.
【００１３】[0013]
【発明の効果】以上、説明したように、本発明によれ
ば、内コイルと外コイルの巻数に差がなく、特性的に優
れ、品質の安定した表面実装型コモンモードチョークコ
イルを提供することができた。As described above, according to the present invention, there is provided a surface-mount type common mode choke coil which has no difference in the number of turns of an inner coil and an outer coil, is excellent in characteristics, and has stable quality. Was completed.
【図１】本発明の一実施の形態における表面実装型コモ
ンモードチョークコイルに用いられる空芯コイルの説明
図。図１（ａ）は、内コイルの外観斜視図。図１（ｂ）
は、外コイルの外観斜視図。図１（ｃ）は、空芯コイル
の外観斜視図。FIG. 1 is an explanatory diagram of an air-core coil used in a surface-mount type common mode choke coil according to an embodiment of the present invention. FIG. 1A is an external perspective view of an inner coil. FIG. 1 (b)
3 is an external perspective view of an outer coil. FIG. 1C is an external perspective view of the air-core coil.
【図２】本発明の他の実施の形態における表面実装型コ
モンモードチョークコイルに用いられる空芯コイルの説
明図。図２（ａ）は、内コイルの外観斜視図。図２
（ｂ）は、外コイルの外観斜視図。図２（ｃ）は、空芯
コイルの外観斜視図。FIG. 2 is an explanatory diagram of an air-core coil used in a surface-mount type common mode choke coil according to another embodiment of the present invention. FIG. 2A is an external perspective view of the inner coil. FIG.
(B) is an external perspective view of an outer coil. FIG. 2C is an external perspective view of the air-core coil.
【図３】本発明の実施の形態における表面実装型コモン
モードチョークコイルに用いられる空芯コイルの巻線方
法の説明図。図３（ａ）は、内コイルの平面図。図３
（ｂ）は、内コイルの巻線方向を示す模式図。図３
（ｃ）は、外コイルの平面図。図３（ｄ）は、外コイル
の巻線方向を示す模式図。FIG. 3 is an explanatory diagram of a winding method of an air-core coil used in the surface-mount type common mode choke coil according to the embodiment of the present invention. FIG. 3A is a plan view of the inner coil. FIG.
(B) is a schematic diagram showing the winding direction of the inner coil. FIG.
(C) is a plan view of the outer coil. FIG. 3D is a schematic diagram showing the winding direction of the outer coil.
【図４】本発明の実施の形態における表面実装型コモン
モードチョークコイルの回路図。FIG. 4 is a circuit diagram of a surface-mounted common mode choke coil according to the embodiment of the present invention.
【図５】従来の表面実装型コモンモードチョークコイル
に用いられる空芯コイルの説明図。図５（ａ）は、内コ
イルの外観斜視図。図５（ｂ）は、外コイルの外観斜視
図。図５（ｃ）は、空芯コイルの外観斜視図。FIG. 5 is an explanatory diagram of an air-core coil used in a conventional surface-mount type common mode choke coil. FIG. 5A is an external perspective view of the inner coil. FIG. 5B is an external perspective view of the outer coil. FIG. 5C is an external perspective view of the air-core coil.
【図６】従来の表面実装型コモンモードチョークコイル
の説明図。図６（ａ）は、分解斜視図。図６（ｂ）は、
外観斜視図。FIG. 6 is an explanatory view of a conventional surface mount type common mode choke coil. FIG. 6A is an exploded perspective view. FIG. 6 (b)
FIG.
【図７】従来の他の例の表面実装型コモンモードチョー
クコイルに用いられる空芯コイルの説明図。図７（ａ）
は、内コイルの外観斜視図。図７（ｂ）は、外コイルの
外観斜視図。図７（ｃ）は、空芯コイルの外観斜視図。FIG. 7 is an explanatory diagram of an air-core coil used in another example of a conventional surface-mount common mode choke coil. FIG. 7 (a)
3 is an external perspective view of an inner coil. FIG. 7B is an external perspective view of the outer coil. FIG. 7C is an external perspective view of the air-core coil.
【図８】従来の他の例の表面実装型コモンモードチョー
クコイルの説明図。図８（ａ）は、分解斜視図。図８
（ｂ）は、外観斜視図。FIG. 8 is an explanatory view of another example of a conventional surface mount common mode choke coil. FIG. 8A is an exploded perspective view. FIG.
(B) is an external perspective view.
【図９】従来の表面実装型コモンモードチョークコイル
に用いられる空芯コイルの巻線方法の説明図。図９
（ａ）は、内コイルの平面図。図９（ｂ）は、内コイル
の巻線方向を示す模式図。図９（ｃ）は、外コイルの平
面図。図９（ｄ）は、外コイルの巻線方向を示す模式
図。FIG. 9 is an explanatory diagram of a winding method of an air-core coil used in a conventional surface-mount type common mode choke coil. FIG.
(A) is a top view of an inner coil. FIG. 9B is a schematic diagram showing the winding direction of the inner coil. FIG. 9C is a plan view of the outer coil. FIG. 9D is a schematic diagram showing the winding direction of the outer coil.
【図１０】本発明及び従来の表面実装型コモンモードチ
ョークコイルのインピーダンス特性図。図１０（ａ）
は、本発明のコイルの特性図。図１０（ｂ）は、従来の
コイルの特性図。FIG. 10 is an impedance characteristic diagram of the present invention and a conventional surface-mount type common mode choke coil. FIG. 10 (a)
3 is a characteristic diagram of the coil of the present invention. FIG. 10B is a characteristic diagram of a conventional coil.
１，１１ （従来の）内コイル ２，１２ （従来の）外コイル ３ 板状磁芯 ４，１４ 凹状磁芯 ５，１５ （従来の）空芯コイル ６ 端子 ７ 半田めっき ８，１８ （本発明の）内コイル ９，１９ （本発明の）外コイル １０，２６ 巻始め側の端子 １１，２７ 巻終わり側の端子 １２，２２ 中央磁脚 ３０，４０ （本発明の空芯コイル 1,11 (conventional) inner coil 2,12 (conventional) outer coil 3 plate magnetic core 4,14 concave magnetic core 5,15 (conventional) air-core coil 6 terminal 7 solder plating 8,18 (the present invention) ) Inner coil 9, 19 Outer coil (of the present invention) 10, 26 Terminal at the beginning of winding 11, 27 Terminal at the end of winding 12, 22 Central magnetic leg 30, 40 (Air core coil of the present invention)
Claims (1)
コイルと、該内コイルと外コイルを収納する板状磁芯と
凹状磁芯とで構成される閉磁路型磁芯とからなり、前記
内コイルと外コイルは同心に巻線し、巻数が同一である
ことを特徴とする表面実装型コモンモードチョークコイ
ル。1. An air-core coil composed of an inner coil and an outer coil, and a closed-magnetic-path-type core composed of a plate-shaped core and a concave-shaped core that house the inner coil and the outer coil. Wherein the inner and outer coils are wound concentrically and have the same number of turns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10377215A JP2000200720A (en) | 1998-12-29 | 1998-12-29 | Surface mount type common mode choke coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10377215A JP2000200720A (en) | 1998-12-29 | 1998-12-29 | Surface mount type common mode choke coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000200720A true JP2000200720A (en) | 2000-07-18 |
Family
ID=18508451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10377215A Pending JP2000200720A (en) | 1998-12-29 | 1998-12-29 | Surface mount type common mode choke coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000200720A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017208494A (en) * | 2016-05-20 | 2017-11-24 | 株式会社村田製作所 | Common mode filter |
-
1998
- 1998-12-29 JP JP10377215A patent/JP2000200720A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017208494A (en) * | 2016-05-20 | 2017-11-24 | 株式会社村田製作所 | Common mode filter |
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