JPH02301311A - Chip type noise elimination filter - Google Patents
Chip type noise elimination filterInfo
- Publication number
- JPH02301311A JPH02301311A JP12217989A JP12217989A JPH02301311A JP H02301311 A JPH02301311 A JP H02301311A JP 12217989 A JP12217989 A JP 12217989A JP 12217989 A JP12217989 A JP 12217989A JP H02301311 A JPH02301311 A JP H02301311A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- ferrite core
- chip capacitor
- chip
- throughhole
- 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
- 230000008030 elimination Effects 0.000 title 1
- 238000003379 elimination reaction Methods 0.000 title 1
- 239000003990 capacitor Substances 0.000 claims abstract description 21
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 20
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 silver Chemical compound 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Filters And Equalizers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電子機器の信号ラインにおける電磁障害ノイ
ズを吸取するノイズ除去フィルタに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a noise removal filter that absorbs electromagnetic interference noise in signal lines of electronic equipment.
従来の技術
近年、プリント基板の面実装化が益々盛んになっており
、この種のノイズ除去フィルタ部品の面実装タイプも製
品化されてきた。BACKGROUND OF THE INVENTION In recent years, surface-mounting of printed circuit boards has become more popular, and surface-mounting types of noise removal filter components of this type have also been commercialized.
従来、この種のノイズ除去フィルタは第４図に示すよう
な構造であった。Conventionally, this type of noise removal filter has had a structure as shown in FIG.
第４図において、１１は凹形フィライトコア、１２はチ
ップコンデンサで凹形フィライトコア１１のくぼみに埋
設される。１３はコ字状のリード線でフェライトコア１
１を貫通し、チップコンデンサ１２の一端とフェライト
コア１１に設けた電極１４に接続される。１５はチップ
コンデンサの他端の電極に接続される外部電極である。In FIG. 4, 11 is a concave phyllite core, and 12 is a chip capacitor, which is embedded in the recess of the concave phyllite core 11. 13 is a U-shaped lead wire that connects to ferrite core 1.
1 and is connected to one end of the chip capacitor 12 and an electrode 14 provided on the ferrite core 11 . 15 is an external electrode connected to the electrode at the other end of the chip capacitor.
発明が解決しようとする課題
しかし上記従来の構成では、面実装機の吸着ノズルで吸
着する面が平滑でないため面実装プリント基板に自動装
着することが困難であった。Problems to be Solved by the Invention However, in the above-mentioned conventional configuration, it was difficult to automatically mount the device onto a surface-mounted printed circuit board because the surface to be picked up by the suction nozzle of the surface-mounting machine was not smooth.
本発明は上記従来の問題点を解決するもので、小型でか
つ面実装基板への自動装着が可能なチップ形ノイズ除去
フィルタを提供することを目的とするものである。The present invention solves the above-mentioned conventional problems, and aims to provide a chip-type noise removal filter that is small and can be automatically attached to a surface-mounted board.
課題を解決するための手段
この問題点を解決するために本発明は、少なくとも３つ
の貫通孔を有する角形のフェライトコアと、前記貫通孔
のうちほぼ中央部に配置された貫通孔に挿入されるチッ
プコンデンサと、前記フェライトコアに挿通し前記チッ
プコンデンサの一方の電極に接続されるとともに前記フ
ェライトコアの両端部に設けた電極に接続される導電材
と、前記チップコンデンサの他方の電極と前記フェライ
トコアの平面のほぼ中央部に設けた電極とを接続する導
電材より構成したものである。Means for Solving the Problems In order to solve this problem, the present invention provides a rectangular ferrite core having at least three through holes, and a ferrite core inserted into the through hole located approximately in the center of the through holes. a chip capacitor, a conductive material inserted into the ferrite core and connected to one electrode of the chip capacitor and connected to electrodes provided at both ends of the ferrite core, the other electrode of the chip capacitor and the ferrite. It is made of a conductive material that connects to an electrode provided approximately at the center of the plane of the core.
作用
この構成により、面実装機の吸着ノズルに吸着する平滑
な面ができ、面実装基板に自動実装できるチップ形ノイ
ズ除去フィルタを得ることができるとともに、２．５−
ピッチで実装した場合でも部品の高さ方向が低く設計で
き小型化が簡単であるため高密度実装を容易に実現する
ことができる。Function: With this configuration, it is possible to obtain a chip-type noise removal filter that can be automatically mounted on a surface mounting board by creating a smooth surface that can be attracted to the suction nozzle of a surface mounting machine, and also has the following advantages: 2.5-
Even when mounted at a pitch, the height of the parts can be designed to be low, and miniaturization is easy, so high-density mounting can be easily achieved.
実施例
以下、本発明の一実施例に係わるチップ形ノイズ除去フ
ィルタについて、図面を参照しながら説明する。Embodiment Hereinafter, a chip type noise removal filter according to an embodiment of the present invention will be described with reference to the drawings.
第１図（ａ） 、 （ｂ）は本発明の一実施例における
ノイズ除去フィルタの斜視図である。第２図はその断面
図であり、第３図はその等価回路を示す。第１図（ａ）
、 （ｂ）に於て、１はフェライトコアで、大小５つ
の貫通孔６を設けている。２はチップコンデンサで、３
はコ字状のリード線や銀などの導電材、４と５は鉄や鋼
などの金属板もしくは銀などの導電材で構成した入出力
用の電極とグラウンド電極である。FIGS. 1(a) and 1(b) are perspective views of a noise removal filter according to an embodiment of the present invention. FIG. 2 is a sectional view thereof, and FIG. 3 shows its equivalent circuit. Figure 1(a)
, (b), 1 is a ferrite core, and five through holes 6 of different sizes are provided. 2 is a chip capacitor, 3
is a U-shaped lead wire and a conductive material such as silver, and 4 and 5 are input/output electrodes and ground electrodes made of metal plates such as iron or steel or conductive materials such as silver.
この場合、フェライトコア１に大小５つの貫通孔６を設
け、チップコンデンサ２を前記貫通孔６のうち中央部に
配置された大きい貫通孔６°に両端部の電極部分が露出
するように挿入し、コ字状の導電材３を小さい貫通孔６
″に挿通させ、その一端を前記チップコンデンサ２の一
方の電極に接続するとともに、他端を前記フェライトコ
ア１の両端に設けた電極４に接続する。更に、前記チッ
プコンデンサ２のもう一方の電極と前記フェライトコア
１の平面のほぼ中央部に設けたグランド電極５を金属板
で接続して構成している。In this case, five large and small through holes 6 are provided in the ferrite core 1, and the chip capacitor 2 is inserted into the large through hole 6° located in the center of the through holes 6 so that the electrode portions at both ends are exposed. , the U-shaped conductive material 3 is inserted into a small through hole 6.
'', one end of which is connected to one electrode of the chip capacitor 2, and the other end is connected to the electrodes 4 provided at both ends of the ferrite core 1.Furthermore, the other electrode of the chip capacitor 2 and a ground electrode 5 provided approximately in the center of the plane of the ferrite core 1 are connected by a metal plate.
尚、上記実施例ではチップコンデンサを用いたが、この
代わりにチップ容量性バリスタを用いた場合は、チップ
コンデンサの働きとサージノイズを除去する働きがある
のでより効果的である。Although a chip capacitor is used in the above embodiment, it is more effective to use a chip capacitive varistor instead because it has the function of a chip capacitor and the function of removing surge noise.
発明の効果
以上のように本発明によれば、面実装機の吸着ノズルに
吸着する平滑な面（第１図のＡ）ができ、面実装基板に
自動実装できるチップ形ノイズ除去フィルタを得ること
ができるとともに、２．５−ピッチで実装した場合でも
部品の高さ方向が低く設計でき、小型化が簡単であるた
め、高密度実装を容易に実現することができるという効
果が得られ、産業上の利用価値は大である。Effects of the Invention As described above, according to the present invention, it is possible to obtain a chip-type noise removal filter that has a smooth surface (A in FIG. 1) that can be adsorbed by the suction nozzle of a surface mounter and can be automatically mounted on a surface mount board. In addition, even when mounted with a 2.5-pitch, the height of the component can be designed to be low, and miniaturization is easy, which has the effect of easily realizing high-density mounting. The utility value above is great.
第１図（ａ）、（ロ）は本発明の一実施例におけるノイ
去フィルタを示す斜視図である。
１・・・・・・フェライトコア、２・・・・・・チップ
コンデンサ、３・・・・・・リード線、４・・・・・・
入出力電極、５・・・・・・グラウンド電極、６．６’
、６°・・・・・・貫通孔。
代理人の氏名 弁理士 粟野重孝 ばか１名（６−ン（
ｂ）
Ｍ ３ 図
箔 ４ 図
／ＺFIGS. 1(a) and 1(b) are perspective views showing a noise removing filter according to an embodiment of the present invention. 1... Ferrite core, 2... Chip capacitor, 3... Lead wire, 4...
Input/output electrode, 5...Ground electrode, 6.6'
, 6°...through hole. Name of agent: Patent attorney Shigetaka Awano 1 idiot (6-n)
b) M 3 figure foil 4 figure/Z
Claims (2)
トコアと、前記貫通孔のうちほぼ中央部に配置された貫
通孔に挿入されるチップコンデンサと、前記フェライト
コアに挿通し前記チップコンデンサの一方の電極に接続
されるとともに前記フェライトコアの両端部に設けた電
極に接続される導電材と、前記チップコンデンサの他方
の電極と前記フェライトコアの平面のほぼ中央部に設け
た電極とを接続する導電材より構成されるチップ形ノイ
ズ除去フィルタ。(1) A square ferrite core having at least three through holes, a chip capacitor inserted into the through hole located approximately in the center of the through holes, and one of the chip capacitors inserted into the ferrite core. a conductive material connected to an electrode and connected to electrodes provided at both ends of the ferrite core; and a conductive material connecting the other electrode of the chip capacitor and an electrode provided approximately at the center of the plane of the ferrite core. A chip-shaped noise removal filter made of material.
リスタを用いた請求項１記載のチップ形ノイズ除去フィ
ルタ。(2) The chip type noise removal filter according to claim 1, wherein a chip capacitive varistor is used in place of the chip capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12217989A JPH02301311A (en) | 1989-05-16 | 1989-05-16 | Chip type noise elimination filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12217989A JPH02301311A (en) | 1989-05-16 | 1989-05-16 | Chip type noise elimination filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02301311A true JPH02301311A (en) | 1990-12-13 |
Family
ID=14829534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12217989A Pending JPH02301311A (en) | 1989-05-16 | 1989-05-16 | Chip type noise elimination filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02301311A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5374907A (en) * | 1992-03-05 | 1994-12-20 | Matsushita Electric Industrial Co., Ltd. | Chip type of noise suppressing filter for suppressing noise electromagnetically generated and method for manufacturing the filter |
| WO1998001947A1 (en) * | 1996-07-08 | 1998-01-15 | Motorola Inc. | Unitary packaging system for a capacitor and inductor |
-
1989
- 1989-05-16 JP JP12217989A patent/JPH02301311A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5374907A (en) * | 1992-03-05 | 1994-12-20 | Matsushita Electric Industrial Co., Ltd. | Chip type of noise suppressing filter for suppressing noise electromagnetically generated and method for manufacturing the filter |
| WO1998001947A1 (en) * | 1996-07-08 | 1998-01-15 | Motorola Inc. | Unitary packaging system for a capacitor and inductor |
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