JP2001308577A - Pt plate shield structure - Google Patents
Pt plate shield structureInfo
- Publication number
- JP2001308577A JP2001308577A JP2000119127A JP2000119127A JP2001308577A JP 2001308577 A JP2001308577 A JP 2001308577A JP 2000119127 A JP2000119127 A JP 2000119127A JP 2000119127 A JP2000119127 A JP 2000119127A JP 2001308577 A JP2001308577 A JP 2001308577A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- shield structure
- printed circuit
- printed board
- board
- 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
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プリント基板から
発生する電磁波の漏洩を防止するＰＴ板シールド構造に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield structure of a PT plate for preventing leakage of electromagnetic waves generated from a printed circuit board.
【０００２】[0002]
【従来の技術】従来、プリント基板から発生する電磁波
の漏洩を防止するＰＴ板シールド構造は、図４に示すよ
うに、弾性体でＺ字状に形成し、垂直方向に弾性を持た
せたオンボードコンタクト１を、図５に示すように、プ
リント基板２周縁に実装し、同オンボードコンタクト１
上にシールドケース３を載置し、同シールドケース３の
開口部周縁に前記オンボードコンタクト１を付勢して接
触し、アース電位となるようにしていた。しかし、この
構成では、プリント基板２の上方はシールドされ、電磁
波の漏洩を防ぐことができるが、プリント基板２の小口
２ａからの漏洩は防ぐことはできないという問題があっ
た。そこで、図示しないが、プリント基板２の周縁にア
ース電位に接続される多数のスルーホールを設け、プリ
ント基板２の小口２ａからの漏洩を防止するようにして
いた。しかし、プリント基板２の周縁に多数のスルーホ
ールを設けるにはそれなりのスペースが必要となるばか
りか、コスト面で不利となるという問題があった。2. Description of the Related Art Conventionally, as shown in FIG. 4, a PT plate shield structure for preventing leakage of electromagnetic waves generated from a printed circuit board is formed in a Z-shape with an elastic body and has a vertical elasticity. The board contact 1 is mounted on the periphery of the printed circuit board 2 as shown in FIG.
The shield case 3 is placed thereon, and the on-board contact 1 is urged into contact with the periphery of the opening of the shield case 3 so as to be at the ground potential. However, in this configuration, the upper part of the printed circuit board 2 is shielded, so that leakage of the electromagnetic wave can be prevented, but there is a problem that leakage from the small opening 2a of the printed circuit board 2 cannot be prevented. Therefore, although not shown, a large number of through holes connected to the ground potential are provided on the peripheral edge of the printed circuit board 2 to prevent leakage from the small opening 2a of the printed circuit board 2. However, providing a large number of through holes on the periphery of the printed circuit board 2 requires not only a certain space but also disadvantages in cost.
【０００３】[0003]
【発明が解決しようとする課題】本発明は以上述べた問
題点を解決し、プリント基板の周縁に多数のスルーホー
ルを設けることなく、プリント基板の小口からの電磁波
の漏洩を防止することのできるＰＴ板シールド構造を提
供することを目的としている。SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and can prevent leakage of electromagnetic waves from a small edge of a printed circuit board without providing a large number of through holes on the periphery of the printed circuit board. An object is to provide a PT plate shield structure.
【０００４】[0004]
【課題を解決するための手段】本発明は上述の課題を解
決するため、プリント基板周縁に弾性体でなるオンボー
ドコンタクトを実装し、同オンボードコンタクトにシー
ルドケースを接触させてシールドしてなるＰＴ板シール
ド構造において、前記オンボードコンタクトに水平方向
の弾性を持たせ、同オンボードコンタクトを前記シール
ドケースの内側面に付勢させると共に、同シールドケー
スにより前記プリント基板の小口を覆うようにしたＰＴ
板シールド構造としている。According to the present invention, in order to solve the above-mentioned problems, an on-board contact made of an elastic material is mounted on the periphery of a printed circuit board, and a shield case is brought into contact with the on-board contact to shield the printed circuit board. In the PT plate shield structure, the on-board contact has elasticity in the horizontal direction, and the on-board contact is urged to the inner surface of the shield case, and the fore-edge of the printed circuit board is covered by the shield case. PT
It has a plate shield structure.
【０００５】前記オンボードコンタクトを、Ｌ字状の剛
性部と、同剛性部の上端を外側に数回折曲して形成した
弾性部とで構成したＰＴ板シールド構造としている。[0005] The on-board contact has a PT plate shield structure composed of an L-shaped rigid portion and an elastic portion formed by bending the upper end of the rigid portion outward several times.
【０００６】前記弾性部に鉛直方向の切り込みを設けた
ＰＴ板シールド構造としている。A PT plate shield structure is provided in which a vertical cut is provided in the elastic portion.
【０００７】前記シールドケースが、前記プリント基板
を載置する板状のベースと、一方を開口する箱状に形成
され、同開口部を前記ベース上に固着され、前記プリン
ト基板を収容するケース部とでなるＰＴ板シールド構造
としている。The shield case is formed in a plate-like base on which the printed circuit board is mounted, and is formed in a box shape with one opening, and the opening is fixed on the base to accommodate the printed circuit board. And a PT plate shield structure.
【０００８】[0008]
【発明の実施の形態】以下、図面に基づいて本発明によ
るＰＴ板シールド構造を詳細に説明する。図１は本発明
によるＰＴ板シールド構造の一実施例を示す要部側断面
図、図２は同分解斜視図である。図１に示すように、板
状のベース３ａ上に、周縁に水平方向に弾性を持つオン
ボードコンタクト１を実装してアース電位としたプリン
ト基板２を載置し、その上から一方を開口する箱状のケ
ース部３ｂを被せ、前記オンボードコンタクト１を前記
シールドケース３のケース部３ｂ内側面に付勢して接触
させ、同ケース部３ｂにより前記プリント基板２の小口
２ａまでシールドするようにしている。また、図２に示
すように、前記ケース部３ｂは、ねじ４により前記ベー
ス３ａに取付けられている。上記のように構成すること
により、前記ケース３により前記プリント基板２の上
面、下面及び、小口２ａをもシールドされプリント基板
２の発生する電磁波が外部に漏れることがない。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a PT plate shield structure according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional side view showing an embodiment of a PT plate shield structure according to the present invention, and FIG. 2 is an exploded perspective view of the same. As shown in FIG. 1, a printed board 2 having a ground potential by mounting an on-board contact 1 having elasticity in the horizontal direction is mounted on a plate-shaped base 3a, and one of the openings is opened from above. A box-shaped case portion 3b is covered, and the on-board contact 1 is urged into contact with the inner surface of the case portion 3b of the shield case 3 so as to shield to the fore edge 2a of the printed circuit board 2 by the case portion 3b. ing. As shown in FIG. 2, the case portion 3b is attached to the base 3a by screws 4. With the above configuration, the upper and lower surfaces of the printed circuit board 2 and the fore-edge 2a are also shielded by the case 3, so that the electromagnetic waves generated by the printed circuit board 2 do not leak outside.
【０００９】図３は本発明によるＰＴ板シールド構造の
他の実施例を示す部品図で、（ａ）は斜視図、（ｂ）は
正立面図、（ｃ）は要部側断面図である。図に示すよう
に、前記オンボードコンタクト１を、Ｌ字状の剛性部１
ａと、同剛性部１ａの上端を外側に数回折曲して形成
し、水平方向に弾性を持たせた弾性部１ｂとで構成する
ようにしている。そして、前記弾性部１ｂに鉛直方向の
切り込み１ｃを設けることにより、同弾性部１ｂがより
適切に変形・復元されるようにしている。FIG. 3 is a component diagram showing another embodiment of the PT plate shield structure according to the present invention, wherein FIG. 3 (a) is a perspective view, FIG. 3 (b) is an upright view, and FIG. is there. As shown in the figure, the on-board contact 1 is connected to an L-shaped rigid portion 1.
a and an elastic portion 1b formed by bending the upper end of the rigid portion 1a outward several times and having elasticity in the horizontal direction. By providing a cut 1c in the vertical direction in the elastic portion 1b, the elastic portion 1b is more appropriately deformed and restored.
【００１０】[0010]
【発明の効果】以上説明したように、本発明によるＰＴ
板シールド構造によれば、オンボードコンタクトを、前
記シールドケースの内側面に接触させることができるの
で、シールドケースによりプリント基板の小口をも覆う
ことができ、従って、プリント基板全周をシールドして
何処からも電磁波が漏れないようにすることができる。
また、前記オンボードコンタクトを、Ｌ字状の剛性部
と、同剛性部の上端を外側に数回折曲して形成した弾性
部とで構成し、同弾性部に鉛直方向の切り込みを設けた
ので、同弾性部がより適切に変形・復元され良好なコン
タクトを得て、シールドケースをプリント基板のアース
電位に保つことができ、確実にシールドすることができ
る。As described above, according to the present invention, the PT
According to the plate shield structure, the on-board contact can be brought into contact with the inner surface of the shield case, so that the shield case can also cover the fore-edge of the printed circuit board. Electromagnetic waves can be prevented from leaking from anywhere.
Also, since the on-board contact is composed of an L-shaped rigid portion and an elastic portion formed by bending the upper end of the rigid portion outward several times, a vertical cut is provided in the elastic portion. In addition, the elastic portion is more appropriately deformed / restored to obtain a good contact, the shield case can be maintained at the ground potential of the printed circuit board, and the shield can be surely shielded.
【図１】本発明によるＰＴ板シールド構造の一実施例を
示す要部側断面図である。FIG. 1 is a sectional side view showing a main part of an embodiment of a PT plate shield structure according to the present invention.
【図２】本発明によるＰＴ板シールド構造の一実施例を
示す分解斜視図である。FIG. 2 is an exploded perspective view showing one embodiment of a PT plate shield structure according to the present invention.
【図３】本発明によるＰＴ板シールド構造の他の実施例
を示す部品図で、（ａ）は斜視図、（ｂ）は正立面図、
（ｃ）は要部側断面図である。FIGS. 3A and 3B are component views showing another embodiment of the PT plate shield structure according to the present invention, wherein FIG. 3A is a perspective view, FIG.
(C) is a sectional side view of a main part.
【図４】従来のＰＴ板シールド構造の要部部品を示す斜
視図である。FIG. 4 is a perspective view showing main parts of a conventional PT plate shield structure.
【図５】従来のＰＴ板シールド構造を示す斜視図であ
る。FIG. 5 is a perspective view showing a conventional PT plate shield structure.
１ オンボードコンタクト １ａ Ｌ字状の剛性部 １ｂ 弾性部 １ｃ 切り込み ２ プリント基板 ２ａ 小口 ３ シールドケース ３ａ ベース ３ｂ ケース部 ４ ねじ DESCRIPTION OF SYMBOLS 1 On-board contact 1a L-shaped rigid part 1b Elastic part 1c Notch 2 Printed circuit board 2a Edge 3 Shield case 3a Base 3b Case part 4 Screw
Claims (4)
ードコンタクトを実装し、同オンボードコンタクトにシ
ールドケースを接触させてシールドしてなるＰＴ板シー
ルド構造において、 前記オンボードコンタクトに水平方向の弾性を持たせ、
同オンボードコンタクトを前記シールドケースの内側面
に付勢させると共に、同シールドケースにより前記プリ
ント基板の小口を覆うようにしたことを特徴とするＰＴ
板シールド構造。1. A PT board shield structure in which an on-board contact made of an elastic body is mounted on a peripheral edge of a printed circuit board and a shield case is brought into contact with the on-board contact to shield the on-board contact. Have
The on-board contact is urged against the inner surface of the shield case, and the shield case covers the fore-edge of the printed circuit board.
Plate shield structure.
剛性部と、同剛性部の上端を外側に数回折曲して形成し
た弾性部とで構成したことを特徴とする請求項１記載の
ＰＴ板シールド構造。2. The on-board contact according to claim 1, wherein the on-board contact comprises an L-shaped rigid portion and an elastic portion formed by bending the upper end of the rigid portion outwardly several times. PT plate shield structure.
たことを特徴とする請求項２記載のＰＴ板シールド構
造。3. The PT plate shield structure according to claim 2, wherein a vertical cut is provided in said elastic portion.
板を載置する板状のベースと、一方を開口する箱状に形
成され、同開口部を前記ベース上に固着され、前記プリ
ント基板を収容するケース部とでなることを特徴とする
請求項１記載のＰＴ板シールド構造。4. The shield case is formed in a plate-like base on which the printed circuit board is mounted, and in a box shape with one opening, and the opening is fixed on the base to accommodate the printed circuit board. 2. The PT plate shield structure according to claim 1, wherein the PT plate shield structure comprises a case portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000119127A JP2001308577A (en) | 2000-04-20 | 2000-04-20 | Pt plate shield structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000119127A JP2001308577A (en) | 2000-04-20 | 2000-04-20 | Pt plate shield structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001308577A true JP2001308577A (en) | 2001-11-02 |
Family
ID=18630162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000119127A Pending JP2001308577A (en) | 2000-04-20 | 2000-04-20 | Pt plate shield structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001308577A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009111076A (en) * | 2007-10-29 | 2009-05-21 | Kyocera Corp | Shielding case and radio terminal apparatus |
| JP2012104741A (en) * | 2010-11-12 | 2012-05-31 | Kyoshin Kogyo Co Ltd | Shield case fixture |
| JP2014139077A (en) * | 2006-08-18 | 2014-07-31 | Delphi Technologies Inc | Lightweight audio system for automotive applications |
| CN108601299A (en) * | 2018-04-26 | 2018-09-28 | 上海移远通信技术股份有限公司 | Shielding case and shield assemblies comprising it |
| GB2569558B (en) * | 2017-12-19 | 2022-04-06 | Harwin Plc | Element, system and method for retaining a component to a surface |
-
2000
- 2000-04-20 JP JP2000119127A patent/JP2001308577A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014139077A (en) * | 2006-08-18 | 2014-07-31 | Delphi Technologies Inc | Lightweight audio system for automotive applications |
| JP2009111076A (en) * | 2007-10-29 | 2009-05-21 | Kyocera Corp | Shielding case and radio terminal apparatus |
| JP2012104741A (en) * | 2010-11-12 | 2012-05-31 | Kyoshin Kogyo Co Ltd | Shield case fixture |
| GB2569558B (en) * | 2017-12-19 | 2022-04-06 | Harwin Plc | Element, system and method for retaining a component to a surface |
| CN108601299A (en) * | 2018-04-26 | 2018-09-28 | 上海移远通信技术股份有限公司 | Shielding case and shield assemblies comprising it |
| CN108601299B (en) * | 2018-04-26 | 2020-08-21 | 上海移远通信技术股份有限公司 | Shielding case and shielding case assembly comprising same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3920786B2 (en) | Liquid crystal display | |
| US7618148B2 (en) | Projector apparatus having grounding components for protection against electromagnetic interference | |
| JPH08153986A (en) | Shield case attaching structure | |
| JP2001308577A (en) | Pt plate shield structure | |
| JPH0629684A (en) | Shield casing | |
| JPH11175191A (en) | Portable information equipment incorporating speaker | |
| JP3065107U (en) | Electromagnetic shield cover structure | |
| JPH08102592A (en) | Electromagnetic shield case for mounted circuit board | |
| JPH08107285A (en) | Connection structure and connection member | |
| JPH0412706Y2 (en) | ||
| JPH0577358B2 (en) | ||
| JP2001053482A (en) | Shielding structure of electronics | |
| JPH10322076A (en) | Structure for high-frequency shield case | |
| JPH11354966A (en) | Shield structure | |
| JP2000112568A (en) | Speaker fixing structure for electronic equipment | |
| JPH04275493A (en) | Shielding device | |
| JPH051113Y2 (en) | ||
| JPH11177270A (en) | Grounding structure of high frequency circuit device | |
| JPH0621663A (en) | Housing structure of electronic device | |
| JP2001177286A (en) | Electromagnetic shield gasket | |
| JP2885759B2 (en) | Magnetic spring | |
| JPS5827523Y2 (en) | Radio wave leakage prevention device for "ro" wave device | |
| JPH0362595A (en) | Shielding structure for electronic device | |
| JP2001168570A (en) | Shield case for high frequency apparatus | |
| JPH1141916A (en) | Switching power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20070131 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090610 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20090616 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20091020 |