JP3007983U - Common mode coil - Google Patents
Common mode coilInfo
- Publication number
- JP3007983U JP3007983U JP1994011369U JP1136994U JP3007983U JP 3007983 U JP3007983 U JP 3007983U JP 1994011369 U JP1994011369 U JP 1994011369U JP 1136994 U JP1136994 U JP 1136994U JP 3007983 U JP3007983 U JP 3007983U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- insulating
- insulating case
- primary
- common mode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Coils Or Transformers For Communication (AREA)
Abstract
(57)【要約】
【目的】 従来品と寸法を変えることなく、高周波での
ノイズ減衰特性、パルス応答特性、耐サージ性の優れた
コモンモードコイルを実現する。
【構成】 絶縁ケース（５）上に巻かれる一次コイル
（１）及び二次コイル（２）を分ける中央隔壁用仕切り
板（３）と、一次及び二次コイルのリード部（１０）を
収納する切り欠き部（９）を設けた固定用底板（４）と
を備えたリング状のフェライトコアを収納する絶縁ケー
スにおいて、その側面に、コイルの巻き始め部（６）と
巻き終わり部（７）とをコイル本体から離す絶縁用の突
起（８）を設ける。
(57) [Summary] [Purpose] To achieve a common mode coil with excellent noise attenuation characteristics at high frequencies, pulse response characteristics, and surge resistance without changing the dimensions of conventional products. [Structure] A partition plate (3) for a central partition that separates the primary coil (1) and the secondary coil (2) wound on an insulating case (5), and the lead parts (10) of the primary and secondary coils are housed. In an insulating case for accommodating a ring-shaped ferrite core having a fixing bottom plate (4) provided with a cutout portion (9), a winding start portion (6) and a winding end portion (7) of a coil are provided on the side surfaces thereof. An insulating protrusion (8) is provided to separate the and from the coil body.
Description
【０００１】[0001]
本考案は、機器自身が発生するノイズ、または開閉サージや雷サージなどの電 源線を伝播して機器に侵入するノイズ対策に利用される電源ラインフィルタのコ モンモードコイルに関する。 The present invention relates to a common mode coil of a power supply line filter used as a countermeasure for noise generated by the device itself or noise propagating through a power line such as switching surge or lightning surge and entering the device.
【０００２】[0002]
以下、従来例を添付図面を参照して説明する。図３は従来例の縦置き型コモン モードコイルの１例を示す。（ａ）は正面図、（ｂ）は右側面図、（ｃ）は背面 図である。 Hereinafter, a conventional example will be described with reference to the accompanying drawings. FIG. 3 shows an example of a conventional vertical type common mode coil. (A) is a front view, (b) is a right side view, and (c) is a rear view.
【０００３】 従来の縦置きリング型のコモンモードコイルは、絶縁ケース５上に巻かれる一 次コイル１及び二次コイル２を分ける中央隔壁用仕切り板３と、一次及び二次コ イルのリード部１０を収納する切り欠き部９を設けた固定用底板４とを備えたリ ング状のフェライトコアを収納す絶縁ケースと、一次及び二次コイルの巻き始め 部６と巻き終わり部７へ挿入する絶縁製のゴムチューブ１１で構成されている。A conventional vertical ring-type common mode coil includes a partition plate 3 for a central partition that divides a primary coil 1 and a secondary coil 2 wound on an insulating case 5, and lead portions of the primary and secondary coils. Insulation case for accommodating a ring-shaped ferrite core with a fixing bottom plate 4 having a notch 9 for accommodating 10 and insertion into winding start part 6 and winding end part 7 of the primary and secondary coils. It is composed of an insulating rubber tube 11.
【０００４】 絶縁ケース５に収納されるフェライトコアは、一般にＭｎ−Ｚｎ系の高透磁率 フェライトが多用される。コア絶縁ケース５はプラスチックが用いられ、コイル は銅線を絶縁被覆で覆って使用される。The ferrite core housed in the insulating case 5 is generally made of Mn—Zn based high-permeability ferrite. The core insulating case 5 is made of plastic, and the coil is used by covering a copper wire with an insulating coating.
【０００５】 コイルは、一次コイル、二次コイル共、コイルの巻き始め部６と巻き終わり部 ７が絶縁ケース５の中央空洞部で、交差する構造となっている。この巻き始め部 ６と巻き終わり部７が交差する絶縁ケース５の中央空洞部では、コイルの近接ま たは接触を避けるため、絶縁製のゴムチューブ１１が巻き始め部６と巻き終わり 部に挿入されており、リード部１０は、固定用底板４の切り欠き部９へ収納され る。In both the primary coil and the secondary coil, the coil has a structure in which a winding start portion 6 and a winding end portion 7 intersect at a central hollow portion of the insulating case 5. In the central hollow portion of the insulating case 5 where the winding start portion 6 and the winding end portion 7 intersect, an insulating rubber tube 11 is inserted into the winding start portion 6 and the winding end portion in order to avoid the proximity or contact of the coil. The lead portion 10 is housed in the cutout portion 9 of the fixing bottom plate 4.
【０００６】[0006]
従来の縦置きリング型のコモンモードコイルにおいては、コイルの巻き始め部 と巻き終わり部がそれぞれコイル本体から近接または接触して引き出される構造 であるため、この間の層間容量が大きくなり高周波でのノイズ減衰特性やパルス 応答特性及び耐サージ性が低下するという問題があった。 In a conventional vertical ring-type common mode coil, the winding start and end of the coil are drawn close to or in contact with the coil body. There was a problem that the attenuation characteristics, pulse response characteristics, and surge resistance were reduced.
【０００７】 本考案は、上記した背景に鑑みてなされたもので、その目的とするところは、 従来品と寸法を変えずに、高周波でのノイズ減衰特性、パルス応答特性及び耐サ ージ性が優れたコモンモードコイルを提供することにある。The present invention has been made in view of the above background, and an object of the present invention is to reduce noise at high frequencies, pulse response characteristics, and surge resistance without changing the dimensions of conventional products. To provide an excellent common mode coil.
【０００８】[0008]
上記した目的を達成するために、本考案では、フェライトコアを収納するプラ スチック製の絶縁ケース側面の片面または両面の２または４ヵ所に、コイルの巻 き始め部と巻き終わり部とをコイル本体から離す絶縁用の突起を設けた。 In order to achieve the above-mentioned object, in the present invention, a coil winding start portion and a winding end portion are provided at two or four places on one side or both sides of a plastic insulating case that houses a ferrite core. An insulating protrusion is provided to separate from.
【０００９】[0009]
フェライトコアを収納する絶縁ケース側面に設けた絶縁用の突起は、一次コイ ルや二次コイルの巻き始め部や巻き終わり部、又はその両方をコイル本体から離 し、この間の距離が離れたことによって、一次コイル及び二次コイルの巻き始め 部と巻き終わり部の層間容量が小さくなり、高周波でのノイズ減衰特性、パルス 応答特性の優れたコイルが実現でき、絶縁製のゴムチューブも不要になる。 The insulating protrusion on the side of the insulating case that houses the ferrite core has the winding start and / or winding end of the primary coil or secondary coil, or both, separated from the coil body, and the distance between them has been increased. This reduces the inter-layer capacitance between the beginning and end of the winding of the primary and secondary coils, achieving a coil with excellent high-frequency noise attenuation characteristics and pulse response characteristics, and eliminating the need for an insulating rubber tube. .
【００１０】[0010]
以下、本考案の実施例を、添付図面を参照して説明する。図１は、本考案に係 るコモンモードコイルで、絶縁用の突起８の形状を三角形にした場合の実施例の 図面であり、（ａ）は正面図を（ｂ）は右側面図を（ｃ）は背面図を示す。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a drawing of an embodiment of a common mode coil according to the present invention in which the shape of a protrusion 8 for insulation is a triangle, in which (a) is a front view and (b) is a right side view. c) shows a rear view.
【００１１】 リング状のフェライトコアは、材質がＭｎ−Ｚｎ系の高透磁率のもので、同心 状のプラスチック製絶縁ケース５に収納する。コア絶縁ケース５は２分割構造と なっていてケース側面よりフェライトコアを挿入する構造になっている。The ring-shaped ferrite core is made of Mn—Zn and has a high magnetic permeability, and is housed in a concentric plastic insulating case 5. The core insulating case 5 has a two-part structure, and the ferrite core is inserted from the side of the case.
【００１２】 絶縁ケース５には、絶縁ケース上に巻かれた一次コイル１と二次コイル２を分 割する中央隔壁用仕切り板３が設けてあり、この中央隔壁用仕切り板に固定用底 板４が繋がっている。固定用底板４にはコイルの巻き始め部６と巻き終わり部７ のリード部１０を固定、位置決めするための切り欠き部９が設けてある。The insulating case 5 is provided with a partition plate 3 for a central partition that divides the primary coil 1 and the secondary coil 2 wound on the insulating case. The partition plate for the central partition is fixed to the bottom plate for fixing. 4 are connected. The fixing bottom plate 4 is provided with notches 9 for fixing and positioning the lead portions 10 of the winding start portion 6 and winding end portion 7 of the coil.
【００１３】 絶縁ケース５の側面には、一次コイルと二次コイルの巻き始め部６と巻き終わ り部７をコイル本体から離す絶縁用の突起８が、中央隔壁用仕切り板３の両側に それぞれ設けてある。絶縁用の突起８は三角形の形状を有していて、絶縁ケース 側面の片面に設ける場合と両面に設ける場合とがある。On the side surface of the insulating case 5, there are provided projections 8 for separating the winding start portion 6 and the winding end portion 7 of the primary coil and the secondary coil from the coil body on both sides of the partition plate 3 for the central partition wall. It is provided. The insulating projection 8 has a triangular shape, and may be provided on one side of the side surface of the insulating case or on both sides.
【００１４】 コイルは絶縁ケース上に巻かれ、中央隔壁用仕切り板３を挟んで一次コイルと 二次コイルに分かれる。材質は絶縁被覆を巻いた銅線が用いられる。コイルは数 回から数十回の巻き数で巻かれ、巻き始め部と巻き終わり部は、三角形の形状を した絶縁用の突起８を挟んでコイル本体と離れる構造となっている。また、巻き 始め部６と巻き終わり部７は、一次コイル、二次コイル共、絶縁ケースの側面の それぞれ反対側に引き出される。The coil is wound on an insulating case and divided into a primary coil and a secondary coil with the partition wall 3 for the central partition interposed therebetween. A copper wire wound with an insulating coating is used as the material. The coil is wound several to several tens of times, and the winding start portion and the winding end portion are separated from the coil body by sandwiching a triangular shaped insulating protrusion 8. Further, the winding start portion 6 and the winding end portion 7 are pulled out to the opposite sides of the side surface of the insulating case for both the primary coil and the secondary coil.
【００１５】 この引き出された巻き始め部６と巻き終わり部７は、絶縁ケース５の中央空洞 部で交差する構造となっていて、この巻き始め部と巻き終わり部の距離がノイズ 減衰特性や耐サージ性に影響を及ぼす。リード部１０は、固定用底板に設けた切 りかき部９に収納される。巻き始め部６と巻き終わり部７のリード部１０は、固 定用底板４の底側に導き出される。The extracted winding start portion 6 and winding end portion 7 have a structure intersecting with each other in the central cavity of the insulating case 5. The distance between the winding start portion and the winding end portion depends on noise attenuation characteristics and resistance. Affects surge characteristics. The lead portion 10 is housed in the cutout portion 9 provided on the fixing bottom plate. The lead portions 10 of the winding start portion 6 and the winding end portion 7 are led out to the bottom side of the fixing bottom plate 4.
【００１６】 絶縁用の突起８によって、巻き始め部６と巻き終わり部７がコイル本体と離れ る構造の本考案によれば、これらの構成により、電気特性としては、高周波のノ イズ減衰特性、パルス応答特性、耐サージ性に優れたコモンモードコイルが実現 する。本考案品のパルス応答特性データを図２、従来品のパルス応答特性を図４ 、本考案品と従来品のインピーダンス特性データを図５に示す。According to the present invention having the structure in which the winding start portion 6 and the winding end portion 7 are separated from the coil body by the insulating projections 8, according to these configurations, the electrical characteristics are high-frequency noise attenuation characteristics, A common mode coil with excellent pulse response characteristics and surge resistance is realized. The pulse response characteristic data of the product of the present invention is shown in FIG. 2, the pulse response characteristic of the conventional product is shown in FIG. 4, and the impedance characteristic data of the product of the present invention is shown in FIG.
【００１７】 本考案品と従来品とを比較すると、従来品のパルス応答特性は、入力したパル ス電圧がそのままスルーして出力されているのに対し、本考案品は、パルス電圧 が減衰されている。また、インピーダンス特性においては、本考案品の方が５Ｍ Ｈｚ以上の周波数において、上回った特性を示す。Comparing the product of the present invention and the conventional product, the pulse response characteristics of the conventional product are that the input pulse voltage is directly output as it is, whereas the product of the present invention has the pulse voltage attenuated. ing. Moreover, in the impedance characteristics, the product of the present invention exhibits higher characteristics at a frequency of 5 MHz or higher.
【００１８】 絶縁用の突起８の形状は、三角形以外に、たとえば円形、四角形などがあげら れ、それらの寸法は、コア絶縁ケースの寸法やコイル銅線の線径によって任意に 設定する。The shape of the insulating projection 8 may be, for example, a circle, a quadrangle, or the like other than a triangle, and the size thereof may be arbitrarily set depending on the size of the core insulating case and the wire diameter of the coil copper wire.
【００１９】[0019]
本考案によれば、コイルの巻き始め部と巻き終わり部を絶縁用の突起でコイル 本体から離すことによって、この間の層間容量が小さくなり、高周波のノイズ減 衰特性、パルス応答特性、及び耐サージ性が優れる。また、絶縁用のゴムチュー ブをコイルの巻き始め部と巻き終わり部へ挿入する作業がなくなるので、作業能 率が向上しゴムチューブも不要になるため、コストダウンができる。 According to the present invention, by separating the winding start portion and the winding end portion of the coil from the coil body by the insulating protrusion, the inter-layer capacitance between them is reduced, and high frequency noise attenuation characteristics, pulse response characteristics, and surge resistance. Excellent in performance. Further, since the work of inserting the insulating rubber tube into the winding start portion and the winding end portion of the coil is eliminated, the work efficiency is improved and the rubber tube is not required, so that the cost can be reduced.
【図１】（ａ）は、本考案品正面図、（ｂ）は右側面
図、（ｃ）は背面図1A is a front view of the present invention, FIG. 1B is a right side view, and FIG. 1C is a rear view.
【図２】本考案品のパルス応答特性データ[Fig. 2] Pulse response characteristic data of the product of the present invention
【図３】（ａ）は、従来品の正面図、（ｂ）は右側面
図、（ｃ）は背面図3A is a front view of a conventional product, FIG. 3B is a right side view, and FIG. 3C is a rear view.
【図４】従来品のパルス応答特性データ[Figure 4] Pulse response characteristic data of conventional products
【図５】本考案品と従来品のインピーダンス特性データFIG. 5: Impedance characteristic data of the device of the present invention and the conventional product
１ 一次コイル ２ 二次コイル ３ 中央隔壁用仕切り板 ４ 固定用底板 ５ 絶縁ケース ６ コイル巻き始め部 ７ コイル巻き終わり部 ８ 突起 ９ 切り欠き部 １０ リード部 1 Primary coil 2 Secondary coil 3 Partition plate for central partition wall 4 Fixing bottom plate 5 Insulating case 6 Coil winding start portion 7 Coil winding end portion 8 Protrusion 9 Cutout portion 10 Lead portion
Claims (1)
ル（１）及び二次コイル（２）を分ける中央隔壁用仕切
り板（３）と、一次及び二次コイルのリード部（１０）
を収納する切り欠き部（９）を設けた固定用底板（４）
とを備えたリング状のフェライトコアを収納する絶縁ケ
ースにおいて、その側面の片面または両面に、コイルの
巻き始め部（６）と巻き終わり部（７）とをコイル本体
から離す絶縁用の突起（８）を設けたことを特徴とす
る、縦置きリング型のコモンモードコイル。1. A partition plate (3) for a central partition, which divides a primary coil (1) and a secondary coil (2) wound on an insulating case (5), and lead parts (10) of the primary and secondary coils.
Fixing bottom plate (4) provided with a notch (9) for housing
In an insulating case for accommodating a ring-shaped ferrite core provided with, an insulating protrusion (6) for separating a winding start portion (6) and a winding end portion (7) from the coil body on one side or both sides of the side surface ( 8) A vertical ring-type common mode coil characterized by being provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994011369U JP3007983U (en) | 1994-08-19 | 1994-08-19 | Common mode coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1994011369U JP3007983U (en) | 1994-08-19 | 1994-08-19 | Common mode coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3007983U true JP3007983U (en) | 1995-02-28 |
Family
ID=43143821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1994011369U Expired - Lifetime JP3007983U (en) | 1994-08-19 | 1994-08-19 | Common mode coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3007983U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017169737A1 (en) * | 2016-04-01 | 2017-10-05 | 株式会社村田製作所 | Coil component and method for manufacturing same |
-
1994
- 1994-08-19 JP JP1994011369U patent/JP3007983U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017169737A1 (en) * | 2016-04-01 | 2017-10-05 | 株式会社村田製作所 | Coil component and method for manufacturing same |
| JPWO2017169737A1 (en) * | 2016-04-01 | 2018-04-05 | 株式会社村田製作所 | Coil component and manufacturing method thereof |
| US11348721B2 (en) | 2016-04-01 | 2022-05-31 | Murata Manufacturing Co., Ltd. | Coil component and method of manufacturing coil component |
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