JPH0636638Y2 - Printed circuit board shield structure for electronic equipment - Google Patents
Printed circuit board shield structure for electronic equipmentInfo
- Publication number
- JPH0636638Y2 JPH0636638Y2 JP192689U JP192689U JPH0636638Y2 JP H0636638 Y2 JPH0636638 Y2 JP H0636638Y2 JP 192689 U JP192689 U JP 192689U JP 192689 U JP192689 U JP 192689U JP H0636638 Y2 JPH0636638 Y2 JP H0636638Y2
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- plate
- metal plate
- shield structure
- 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
Links
- 239000002184 metal Substances 0.000 claims description 35
- 210000000078 claw Anatomy 0.000 claims description 11
- 230000000694 effects Effects 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Structure Of Printed Boards (AREA)
- Mounting Of Printed Circuit Boards And The Like (AREA)
Description
【考案の詳細な説明】 〈産業上の利用分野〉 本考案は、電子計算機，オフィスコンピュータ，ワーク
ステーション等の電子機器装置に配備されたプリント基
板のシールド構造に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a shield structure for a printed circuit board arranged in an electronic device such as an electronic computer, an office computer, and a workstation.
〈従来の技術〉 電子機器装置においては、必要機能回路を搭載したプリ
ント基板を機器ケース内に収納している。<Prior Art> In an electronic device, a printed circuit board on which necessary functional circuits are mounted is housed in a device case.
これら機器装置では、静電気ノイズによる誤動作や電波
障害を防止する為の手段としてプリント基板自体をアー
ス強化させている。しかしプリント基板上における各部
品の実装密度が高くなるに従ってアース強化を十分に取
ることができない。その為十分なアース強化を図るべ
く、従来から第５図に示す如く疑似的なアース強化手段
が講じられている。In these devices, the printed circuit board itself is grounded as a means for preventing malfunction and radio interference due to electrostatic noise. However, as the mounting density of each component on the printed circuit board becomes higher, the earth cannot be sufficiently strengthened. Therefore, in order to sufficiently strengthen the earth, a pseudo earth strengthening means has been conventionally taken as shown in FIG.
すなわち機器ケース６内にポスト８を介してプリント基
板７を止め螺子81によって固定する。このポスト８にプ
リント基板７と略平行した状態で金属板９を取付ける。
プリント基板７はアースパターン71を介してポスト８と
導通しており、更にポスト８は金属板９とも導通してい
る。その為プリント基板７と金属板９はポスト８を介し
て電気的に導通し、よって金属板９がプリント基板７に
対して疑似的にアース機能を働かせる。That is, the printed circuit board 7 is fixed in the device case 6 via the posts 8 by the set screws 81. The metal plate 9 is attached to the post 8 in a state substantially parallel to the printed circuit board 7.
The printed circuit board 7 is electrically connected to the post 8 via the ground pattern 71, and the post 8 is also electrically connected to the metal plate 9. Therefore, the printed circuit board 7 and the metal plate 9 are electrically connected to each other via the post 8, so that the metal plate 9 acts on the printed circuit board 7 in a pseudo earth function.
〈考案が解決しようとする課題〉 上記の金属板を用いた疑似的アース強化手段において
は、プリント基板と金属板とをポストを介して止め螺子
により接続する為、機器ケース内での当該取付作業は容
易でない。しかもより以上のアース強化を図る為には、
プリント基板，ポスト，金属板の接続箇所を増設しなけ
ればならず、これに伴って上述の取付作業も煩雑化す
る。更に止め螺子やポストの数がその分だけ増加するこ
とになる。又プリント基板の下側に金属板が略平行した
状態で設けられる為、プリント基板７に実装した部品72
のリード線72aが金属板９に接触することがあり好まし
いものではない。<Problems to be Solved by the Invention> In the above pseudo earth strengthening means using a metal plate, since the printed circuit board and the metal plate are connected by a set screw through a post, the mounting work in the equipment case is performed. Is not easy. Moreover, in order to further strengthen the earth,
It is necessary to increase the number of connection points for the printed circuit board, post, and metal plate, which complicates the above-mentioned mounting work. Furthermore, the number of setscrews and posts will increase accordingly. Further, since the metal plate is provided on the lower side of the printed circuit board in a substantially parallel state, the component 72 mounted on the printed circuit board 7 is mounted.
The lead wire 72a of 1 may contact the metal plate 9, which is not preferable.
〈課題を解決するための手段〉 本考案は上記の各課題に鑑み案出されたもので、金属板
と絶縁シートを重ねた状態でその端部を絶縁シート側に
折り曲げて接続金属面を形成したアース板と、パターン
回路に部品を実装し下面にアースパターンを形成したプ
リント基板と、ロック爪を内部下面に突設し、このロッ
ク爪の先端鉤部と所定間隔を成す押え突起を設けて成る
機器ケースとから成るものであって、前記アースパター
ンと前記接続金属面とを接触させた状態でアース板とプ
リント基板とを重ね合せ、このアース板を前記押え突起
上に載置するとともにプリント基板をロック爪の先端鉤
部に掛止させたものである。<Means for Solving the Problems> The present invention has been devised in view of the above problems, and in the state where the metal plate and the insulating sheet are overlapped, the end portion is bent toward the insulating sheet side to form the connecting metal surface. A grounding board, a printed circuit board on which parts are mounted on the pattern circuit and the grounding pattern is formed on the bottom surface, and a locking claw protruding from the inner bottom surface, and a pressing projection that forms a predetermined distance from the tip hook of this locking claw. A device case, which comprises a grounding plate and a printed circuit board in a state where the grounding pattern and the connecting metal surface are in contact with each other, and the grounding plate is placed on the pressing projection and printed. The board is hooked on the tip of the lock claw.
〈作用〉 プリント基板のアースパターンとアース板の接続金属面
とを接触させた状態に重ね合せて機器ケース内に配置
し、該アース板を機器ケースの内部下面に設けた押え突
起上に載置して押し下げれば、プリント基板はロック爪
の先端鉤部に掛止される。所謂ワンタッチ式にプリント
基板とアース板とが機器ケース内に収納固定される。し
かもプリント基板とアース板との接続は、押え突起とロ
ック爪の先端鉤部とによって圧締されるので十分な接触
強度が得られて、良好なアース効果を働かせる。<Function> The grounding pattern of the printed circuit board and the connecting metal surface of the grounding plate are placed in contact with each other and placed in the equipment case, and the grounding plate is placed on the presser projection provided on the inner bottom surface of the equipment case. When pushed down, the printed circuit board is hooked on the tip of the lock claw. The printed circuit board and the ground plate are housed and fixed in the equipment case in a so-called one-touch method. Moreover, the printed circuit board and the ground plate are connected to each other by being pressed by the pressing projection and the tip of the lock claw, so that sufficient contact strength can be obtained and a good ground effect can be exerted.
更にプリント基板の下面と金属板との間に絶縁シートが
介在するので実装部品と金属板の接触事故もない。Further, since the insulating sheet is interposed between the lower surface of the printed circuit board and the metal plate, there is no contact accident between the mounted component and the metal plate.
〈実施例〉 次に本考案のシールド構造を詳細に説明する。<Example> Next, the shield structure of the present invention will be described in detail.
第１図はプリント基板シールド構造を示す側面概略図で
ある。又第２図はアース板１の側面概略図、第３図はプ
リント基板４の側面概略図、更に第４図は機器ケース５
の側面概略図である。FIG. 1 is a schematic side view showing a printed circuit board shield structure. 2 is a schematic side view of the ground plate 1, FIG. 3 is a schematic side view of the printed circuit board 4, and FIG.
FIG.
アース板１は金属板２と絶縁シート３を重ね、その端部
を絶縁シート３側に折り曲げて折り曲げ部11を形成す
る。折り曲げ部11は絶縁シート３側に折り曲げられるも
ので、上面には接続金属面21が形成される。折り曲げ部
11は厚さh1を有し、且つ又金属板２の材質特性による弾
性を有する。上記折り曲げ部11によって金属板２と絶縁
シート３は特別な接着剤を介在させることなく一体的に
アース板１を構成する。又絶縁シート３には必要箇所に
予め窓31が設けられる。この窓31は後述する如く、バネ
が直接金属板２に当接できる様にしたものである。The ground plate 1 is formed by stacking the metal plate 2 and the insulating sheet 3 and bending the end portion thereof toward the insulating sheet 3 side to form a bent portion 11. The bent portion 11 is bent toward the insulating sheet 3 side, and a connecting metal surface 21 is formed on the upper surface. Bent section
11 has a thickness h 1 and also has elasticity due to the material characteristics of the metal plate 2. The bent portion 11 forms the earth plate 1 integrally with the metal plate 2 and the insulating sheet 3 without interposing a special adhesive. Further, the insulating sheet 3 is provided with a window 31 in advance at a necessary position. As will be described later, the window 31 is designed so that the spring can directly contact the metal plate 2.
プリント基板４は基板上に図示しない回路パターンが形
成されており、この回路パターンに各種の部品41が実装
される。更にアース板１の接続金属面21と対応するプリ
ント基板４の下面にはアースパターン42が形成される。
又上記アース板１の窓31と対応する位置にバネ43が取付
けられる。The printed circuit board 4 has a circuit pattern (not shown) formed on the circuit board, and various components 41 are mounted on the circuit pattern. Further, a ground pattern 42 is formed on the lower surface of the printed circuit board 4 corresponding to the connecting metal surface 21 of the ground plate 1.
A spring 43 is attached to the ground plate 1 at a position corresponding to the window 31.
一方機器ケース５はその内部下面51に先端鉤部52aを有
するロック爪52と、当該先端鉤部52aと所定の間隔Ｈを
有する押え突起53が設けられる。間隔Ｈはアース板１の
折り曲げ部11が成す厚さh1とプリント基板４の厚さh
2（第２図参照）との和（h1＋h2）に略等しいか、それ
よりも幾分小さい寸法に形成されている。更に内部下面
51の上記バネ43及び窓31と対応する位置に突起54が設け
られる。On the other hand, the device case 5 is provided with a lock claw 52 having a tip hook portion 52a and a pressing projection 53 having a predetermined distance H from the tip hook portion 52a on the inner lower surface 51 thereof. The interval H is the thickness h 1 formed by the bent portion 11 of the ground plate 1 and the thickness h of the printed circuit board 4.
2 (see FIG. 2 ) and is approximately equal to or slightly smaller than the sum (h 1 + h 2 ). Furthermore, the inner bottom surface
A protrusion 54 is provided at a position of 51 corresponding to the spring 43 and the window 31.
斯かる構造のアース板1,プリント基板４を機器ケース５
内に収納するには、先ず第１図に示す様にアース板１の
上方にプリント基板４を配置して夫々接続金属面21とア
ースパターン42とを接触させる。そしてアース板１の端
部下面、すなわち折り曲げ部11の下面を押え突起53上に
載置する。この状態にてプリント基板４の各端部を押圧
すれば、折り曲げ部11の弾性に抗してプリント基板４の
端部は先端鉤部52aに掛止される。換言すればアース板
１とプリント基板４は、押え突起53と先端鉤部52a間に
圧締状態で保持される。The earth plate 1 and the printed circuit board 4 having such a structure are attached to the equipment case 5
In order to store them inside, first, as shown in FIG. 1, the printed circuit board 4 is arranged above the earth plate 1 and the connecting metal surface 21 and the earth pattern 42 are brought into contact with each other. Then, the lower surface of the end portion of the ground plate 1, that is, the lower surface of the bent portion 11 is placed on the pressing protrusion 53. If each end of the printed circuit board 4 is pressed in this state, the end of the printed circuit board 4 is hooked on the tip hook 52a against the elasticity of the bent portion 11. In other words, the ground plate 1 and the printed circuit board 4 are held in a clamped state between the pressing protrusion 53 and the tip hook portion 52a.
上述した如く先端鉤部52aと押え突起53の成す間隔Ｈ
は、折り曲げ部の厚さh1とプリント基板の厚さh2の和と
略等しいか若しくは僅かに小さい為、しかも折り曲げ部
11は金属板２による弾性を有するので、アース板１とプ
リンタ基板４とを十分に圧締する。よって接続金属面21
とアースパターン42は、極めて良好な接触状態を維持す
ることになる。As described above, the distance H formed by the tip hook portion 52a and the pressing protrusion 53
Is approximately equal to or slightly smaller than the sum of the thickness h 1 of the bent portion and the thickness h 2 of the printed circuit board.
Since 11 has elasticity due to the metal plate 2, the earth plate 1 and the printer substrate 4 are sufficiently clamped. Therefore connecting metal surface 21
The ground pattern 42 and the ground pattern 42 maintain a very good contact state.
更に上記接続金属面21とアースパターン42との接触をよ
り確実のものとする為、バネ43を絶縁シート３の窓31か
ら金属板２に当接させる。金属板２の当該当接裏面には
突起54が存在するのでバネ43による反力は大きく、よっ
てプリント基板４のアースパターン42と接続金属面21と
をより十分に圧締させ得る。Further, in order to secure the contact between the connecting metal surface 21 and the ground pattern 42, the spring 43 is brought into contact with the metal plate 2 through the window 31 of the insulating sheet 3. Since the protrusion 54 is present on the contacting back surface of the metal plate 2, the reaction force by the spring 43 is large, and thus the ground pattern 42 of the printed circuit board 4 and the connecting metal surface 21 can be more sufficiently clamped.
〈考案の効果〉 上述した如く本考案のシールド構造は、機器ケース内に
てアース板とプリント基板等を押圧すれば、所謂ワンタ
ッチ式に収納固定させることができ、極めて取付施工性
のよいものとなる。<Effect of the Invention> As described above, the shield structure of the present invention can be stored and fixed in a so-called one-touch type by pressing the earth plate and the printed circuit board in the equipment case, and the installation workability is extremely good. Become.
しかも機器ケース内にロック爪，押え突起を一体的に形
成しておけばよく、従来の如く止め螺子やポストを別個
に設ける必要もない。更にプリント基板とアース板との
間に絶縁シートが介在する為、プリント基板に実装され
た部品のリード線が金属板と接触することがない等、電
子機器装置において極めて好適なプリント基板シールド
構造である。Moreover, the locking claw and the pressing projection may be integrally formed in the device case, and it is not necessary to separately provide a set screw and a post as in the conventional case. Further, since the insulating sheet is interposed between the printed circuit board and the ground plate, the lead wire of the component mounted on the printed circuit board does not come into contact with the metal plate. is there.
第１図は、本考案のプリント基板シールド構造を示す側
面概略図、 第２図は、アース板の側面概略図、 第３図は、プリント基板の側面概略図、 第４図は、機器ケースの側面概略図、 第５図は、従来のプリント基板シールド構造を示す側面
概略図である。 １……アース板,2……金属板， ３……絶縁シート,11……折り曲げ部， 21……接続金属板,4……プリント基板， 42……アースパターン,5……機器ケース， 51……内部下面,52……ロック爪， 52a……先端鉤部,53……押え突起。FIG. 1 is a schematic side view showing a printed circuit board shield structure of the present invention, FIG. 2 is a schematic side view of a ground plate, FIG. 3 is a schematic side view of a printed circuit board, and FIG. FIG. 5 is a schematic side view showing a conventional printed circuit board shield structure. 1 …… Ground plate, 2 …… Metal plate, 3 …… Insulation sheet, 11 …… Bent part, 21 …… Connecting metal plate, 4 …… Printed circuit board, 42 …… Ground pattern, 5 …… Device case, 51 ...... Inner bottom surface, 52 ...... Lock claw, 52a ...... Tip hook part, 53 ...... Presser projection.
Claims (1)
部を該絶縁シート側に折り曲げて接続金属面を形成した
アース板と、 パターン回路に部品を実装し、下面にアースパターンを
形成したプリント基板と、 ロック爪を内部下面に突設し、該ロック爪の先端鉤部と
所定の間隔を成す押え突起を同下面に設けて成る機器ケ
ースとから成るものであって、 前記アースパターンと前記接続金属面とを接触させた状
態で前記アース板と前記プリント基板とを重ね合せ、該
アース板を前記押え突起上に載置するとともに該プリン
ト基板を前記ロック爪の先端鉤部にて掛止させたことを
特徴とする電子機器装置のプリント基板シールド構造。1. A grounding plate in which a metal plate and an insulating sheet are superposed on each other and an end portion of the metal plate is bent toward the insulating sheet to form a connecting metal surface, and a component is mounted on a pattern circuit to form a grounding pattern on the lower surface. A printed circuit board and a device case in which a lock claw is provided on the inner lower surface so as to project, and a pressing projection that forms a predetermined distance from the tip hook portion of the lock claw is provided on the lower surface. And the connection metal surface are in contact with each other, the ground plate and the printed circuit board are overlapped with each other, the ground plate is placed on the pressing protrusion, and the printed circuit board is held by the tip hook portion of the lock claw. A printed circuit board shield structure for electronic devices characterized by being hooked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP192689U JPH0636638Y2 (en) | 1989-01-11 | 1989-01-11 | Printed circuit board shield structure for electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP192689U JPH0636638Y2 (en) | 1989-01-11 | 1989-01-11 | Printed circuit board shield structure for electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0292993U JPH0292993U (en) | 1990-07-24 |
| JPH0636638Y2 true JPH0636638Y2 (en) | 1994-09-21 |
Family
ID=31202243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP192689U Expired - Lifetime JPH0636638Y2 (en) | 1989-01-11 | 1989-01-11 | Printed circuit board shield structure for electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0636638Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6222752B2 (en) * | 2016-02-09 | 2017-11-01 | Ｎｅｃプラットフォームズ株式会社 | Conductive sheet mounting structure and electronic device |
| JP2018060991A (en) * | 2016-09-28 | 2018-04-12 | 住友ベークライト株式会社 | Film for sealing, sealing method for electronic component mounting substrate, and film-covered electronic component mounting substrate for sealing |
-
1989
- 1989-01-11 JP JP192689U patent/JPH0636638Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0292993U (en) | 1990-07-24 |
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