JPH05259688A - Printed circuit board - Google Patents
Printed circuit boardInfo
- Publication number
- JPH05259688A JPH05259688A JP8652092A JP8652092A JPH05259688A JP H05259688 A JPH05259688 A JP H05259688A JP 8652092 A JP8652092 A JP 8652092A JP 8652092 A JP8652092 A JP 8652092A JP H05259688 A JPH05259688 A JP H05259688A
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- filter
- type filter
- ferrite
- 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
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はプリント基板に関し、特
に、貫通型フィルタのシールド効果を高め減衰特性を改
善したプリント基板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board, and more particularly to a printed circuit board in which the shield effect of a feedthrough filter is enhanced and the attenuation characteristic is improved.
【０００２】[0002]
【従来の技術】従来、貫通型フィルタ１０の取付構造
は、図３に示すようにプリント基板１に端子台１５を取
り付け、さらに端子台１５に貫通型フィルタ１０のアー
ス部１３を半田２２で半田付けする構造となっている。2. Description of the Related Art Conventionally, a mounting structure of a through-type filter 10 is such that a terminal block 15 is mounted on a printed circuit board 1 as shown in FIG. The structure is attached.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述し
た従来の取付構造では、貫通型フィルタ１０のリード線
１１の入力側Ａと出力側Ｂの間の減衰特性は、貫通型フ
ィルタ１０の単体特性の１０〜２０〜％程度の効果しか
得られないという問題があった。However, in the above-mentioned conventional mounting structure, the attenuation characteristic between the input side A and the output side B of the lead wire 11 of the feedthrough filter 10 is the same as the single characteristic of the feedthrough filter 10. There is a problem that only an effect of about 10 to 20% can be obtained.
【０００４】また、従来の構造では、入出力の遮蔽効果
（シールド効果）を果たす部分が図３に示す端子台１５
しかなく、シールド効果としては極めて不十分であると
いう問題があった。Further, in the conventional structure, the portion that fulfills the input / output shielding effect (shielding effect) is the terminal block 15 shown in FIG.
However, there is a problem that the shielding effect is extremely insufficient.
【０００５】本発明は上述した問題点にかんがみてなさ
れたもので、貫通型フィルタのシールド効果を高め減衰
特性を改善することのできるプリント基板の提供を目的
とする。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a printed circuit board which can enhance the shield effect of the feedthrough filter and improve the attenuation characteristic.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に本発明のプリント基板は、貫通型フィルタを取り付け
るプリント基板において、該プリント基板に前記貫通型
フィルタのリード線を取り付けるためのスルーホール部
を設けるとともに、該スルーホール部をフェライトの密
封構造とした構成としてあり、好ましくは、貫通型フィ
ルタをプリント基板に面実装する構成としてある。In order to achieve the above object, a printed circuit board of the present invention is a printed circuit board to which a through-type filter is attached, and a through hole portion for attaching a lead wire of the through-type filter to the printed circuit board. And the through-hole portion has a ferrite sealing structure, and preferably, the through-type filter is surface-mounted on the printed circuit board.
【０００７】[0007]
【実施例】以下、本発明の一実施例について図面を参照
して説明する。図１は本発明の一実施例に係るプリント
基板に貫通型フィルタを取り付けた状態を示す断面図で
ある。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing a state in which a through-type filter is attached to a printed circuit board according to an embodiment of the present invention.
【０００８】図１に示すように、プリント基板１のスル
ーホール部１ａには、フェライト２が取り付けてあり、
このフェライト２の貫通孔２ａには、貫通型フィルタ１
０のリード線１１を挿通してある。As shown in FIG. 1, ferrite 2 is attached to the through hole portion 1a of the printed circuit board 1,
The through-hole type filter 1 is provided in the through-hole 2a of the ferrite 2.
0 lead wire 11 is inserted.
【０００９】貫通型フィルタ１０は、コンデンサ部１２
にリード線１１を貫通させるとともに、コンデンサ部１
２の胴部をアース部１３で覆い、側部を樹脂部１４で密
封して構成してある。The feedthrough filter 10 has a capacitor portion 12
The lead wire 11 through the capacitor part 1
The body of No. 2 is covered with the grounding part 13, and the side part is sealed with the resin part 14.
【００１０】また、貫通型フィルタ１０のアース部１３
は、脚部１３ａの下端で、プリント基板１上の銅箔部３
に半田２０で半田付けされている。これによって、貫通
型フィルタ１０は、プリント基板１上に面実装されてい
る。Further, the ground portion 13 of the feedthrough filter 10
Is a copper foil portion 3 on the printed circuit board 1 at the lower end of the leg portion 13a.
It is soldered with solder 20. As a result, the feedthrough filter 10 is surface-mounted on the printed circuit board 1.
【００１１】次に、上記構成からなる本発明のプリント
基板の作用について説明する。Next, the operation of the printed circuit board of the present invention having the above structure will be described.
【００１２】本発明のプリント基板においては、貫通型
フィルタ１０のリード線１１の入力部Ａと出力部Ｂが、
フェライト２及びプリント基板１によってほぼ完全にシ
ールドされている。したがって、貫通型フィルタの入出
力のシールド効果が高く、減衰特性を改善することがで
きる。In the printed circuit board of the present invention, the input portion A and the output portion B of the lead wire 11 of the feedthrough filter 10 are
It is almost completely shielded by the ferrite 2 and the printed circuit board 1. Therefore, the input / output shield effect of the feedthrough filter is high, and the attenuation characteristic can be improved.
【００１３】図２は、貫通型フィルタの減衰特性を示す
グラフである。図２に示すように、従来のプリント基板
における貫通型フィルタの実装構造（図３）の減衰特性
IIは、フィルタ単体特性III に比べ１０〜２０％程度の
減衰効果しかない。これに対し、本発明のプリント基板
における貫通型フィルタの実装構造（図１）の減衰特性
Ｉは、フィルタ単体特性III に比べ８０％程度の減衰効
果が得られ、従来例に比べ改善が著しいことがわかる。FIG. 2 is a graph showing the attenuation characteristics of the feedthrough filter. As shown in FIG. 2, the attenuation characteristics of the conventional feedthrough filter mounting structure (FIG. 3) on a printed circuit board.
II has a damping effect of about 10 to 20% as compared with the characteristic III of the filter alone. On the other hand, the attenuation characteristic I of the mounting structure (FIG. 1) of the through-type filter in the printed circuit board of the present invention has an attenuation effect of about 80% as compared with the characteristic III of the filter alone, and is significantly improved as compared with the conventional example. I understand.
【００１４】[0014]
【発明の効果】以上説明したように本発明のプリント基
板によれば、貫通型フィルタの入出力のシールド効果を
高め、減衰特性を改善することができる。As described above, according to the printed circuit board of the present invention, it is possible to enhance the input / output shield effect of the feedthrough filter and improve the attenuation characteristic.
【図１】本発明の一実施例に係るプリント基板に貫通型
フィルタを取り付けた状態を示す断面図である。FIG. 1 is a sectional view showing a state in which a through-type filter is attached to a printed circuit board according to an embodiment of the present invention.
【図２】貫通型フィルタの減衰特性を示すグラフであ
る。FIG. 2 is a graph showing an attenuation characteristic of a feedthrough filter.
【図３】従来のプリント基板に貫通型フィルタを取り付
けた状態を示す断面図である。FIG. 3 is a cross-sectional view showing a state in which a through-type filter is attached to a conventional printed circuit board.
１…プリント基板 ２…フェライト ３…銅箔 ４…スルーホール座 １０…貫通型フィルタ １１…リード線 １２…コンデンサ部 １３…アース部 １４…樹脂部 １５…端子台 ２０〜２２…半田 Ａ…入力側 Ｂ…出力側 DESCRIPTION OF SYMBOLS 1 ... Printed circuit board 2 ... Ferrite 3 ... Copper foil 4 ... Through hole seat 10 ... Penetration type filter 11 ... Lead wire 12 ... Capacitor part 13 ... Ground part 14 ... Resin part 15 ... Terminal block 20-22 ... Solder A ... Input side B ... Output side
Claims (2)
板において、該プリント基板に前記貫通型フィルタのリ
ード線を取り付けるためのスルーホール部を設けるとと
もに、該スルーホール部をフェライトの密封構造とした
ことを特徴とするプリント基板。1. A printed circuit board to which a through-type filter is attached, wherein a through-hole portion for mounting a lead wire of the through-type filter is provided on the printed circuit board, and the through-hole portion has a ferrite sealing structure. And printed circuit board.
する請求項１記載のプリント基板。2. The printed circuit board according to claim 1, wherein the through-type filter is surface-mounted on the printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4086520A JP2768128B2 (en) | 1992-03-10 | 1992-03-10 | Printed board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4086520A JP2768128B2 (en) | 1992-03-10 | 1992-03-10 | Printed board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05259688A true JPH05259688A (en) | 1993-10-08 |
| JP2768128B2 JP2768128B2 (en) | 1998-06-25 |
Family
ID=13889267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4086520A Expired - Lifetime JP2768128B2 (en) | 1992-03-10 | 1992-03-10 | Printed board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2768128B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5839189A (en) * | 1995-04-03 | 1998-11-24 | Emerson Electric Co. | Bracket for attaching pin-in-hole components to a surface mount board |
| KR100484827B1 (en) * | 2002-11-26 | 2005-04-22 | 엘지전자 주식회사 | High frequency niose removing apparatus of circuit board |
| JP2012095030A (en) * | 2010-10-26 | 2012-05-17 | Kojima Press Industry Co Ltd | On-vehicle noise suppression filter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0210622U (en) * | 1988-07-01 | 1990-01-23 | ||
| JPH02116796U (en) * | 1989-03-07 | 1990-09-19 |
-
1992
- 1992-03-10 JP JP4086520A patent/JP2768128B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0210622U (en) * | 1988-07-01 | 1990-01-23 | ||
| JPH02116796U (en) * | 1989-03-07 | 1990-09-19 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5839189A (en) * | 1995-04-03 | 1998-11-24 | Emerson Electric Co. | Bracket for attaching pin-in-hole components to a surface mount board |
| KR100484827B1 (en) * | 2002-11-26 | 2005-04-22 | 엘지전자 주식회사 | High frequency niose removing apparatus of circuit board |
| JP2012095030A (en) * | 2010-10-26 | 2012-05-17 | Kojima Press Industry Co Ltd | On-vehicle noise suppression filter |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2768128B2 (en) | 1998-06-25 |
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