JPH071835Y2 - Electronic device shield structure - Google Patents
Electronic device shield structureInfo
- Publication number
- JPH071835Y2 JPH071835Y2 JP1989050157U JP5015789U JPH071835Y2 JP H071835 Y2 JPH071835 Y2 JP H071835Y2 JP 1989050157 U JP1989050157 U JP 1989050157U JP 5015789 U JP5015789 U JP 5015789U JP H071835 Y2 JPH071835 Y2 JP H071835Y2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- cover
- shield plate
- electronic device
- shield
- 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
- 238000002788 crimping Methods 0.000 claims description 9
- 230000000994 depressogenic effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案はチューナやモジュレータ等の電子機器に使用さ
れるシールド構造に係わり、特に枠とカバーとの接触を
強固な構造にした電子機器のシールド構造に関する。[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a shield structure used in electronic devices such as tuners and modulators, and more particularly to a shield for electronic devices in which a frame and a cover have a strong contact structure. Regarding the structure.
［考案の概要］ 本考案は、シールド板に設けた枠かしめ部をカバー上面
に突出させ、この枠かしめ部を捻ってこの部分のカバー
を陥没させ、内部のシールド板に当接させることにより
シールドを行なおうとするものにおいて、シールド板の
上端を一部傾斜させることによってカバーの陥没部分と
シールド板との接触を良好にしようとするものである。[Summary of the Invention] In the present invention, a shield is provided by projecting a frame caulking portion provided on a shield plate to the upper surface of the cover, twisting the frame caulking portion to cause the cover of this portion to be depressed, and abutting against the internal shield plate. In order to improve the contact between the recessed portion of the cover and the shield plate, the upper end of the shield plate is partially inclined.
［従来の技術］ 電子機器等において、シールド効果を大きくするため第
３図のような枠シールド板が使われている。[Prior Art] In electronic devices and the like, a frame shield plate as shown in FIG. 3 is used in order to increase the shield effect.
図において電子機器１は、内部の電子回路を枠２により
囲い、この上からカバー４を被せた構造を有するもの
で、この場合枠２の内部には枠かしめ部５を有する枠シ
ールド板３が設けられており、上記枠かしめ部５をカバ
ー４の透孔4aに挿通し、枠かしめ部５を捻って固定する
ようになされている。In the figure, an electronic device 1 has a structure in which an internal electronic circuit is surrounded by a frame 2 and a cover 4 is covered from above, and in this case, a frame shield plate 3 having a frame caulking portion 5 is provided inside the frame 2. The frame caulking portion 5 is inserted into the through hole 4a of the cover 4, and the frame caulking portion 5 is twisted and fixed.
第４図に枠かしめ部５とカバー４の透孔4aとの係合関係
を詳細に示す。図において枠かしめ部５は、枠シールド
板３の切欠3aの中央部よりさかずき状に突き出た形状を
有するもので、下部5aが斜面状になされ、カバー４を被
せたときカバー４の表面が斜面状の下部5aの中腹の高さ
になるようになされている。またカバー４の透孔4aは枠
かしめ部５がやっと入る程度の幅及び長さを有する細長
い透孔である。FIG. 4 shows the engagement relationship between the frame crimping portion 5 and the through hole 4a of the cover 4 in detail. In the figure, the frame caulking portion 5 has a shape projecting like a skirt from the central portion of the cutout 3a of the frame shield plate 3, and the lower portion 5a has an inclined surface, and when the cover 4 is covered, the surface of the cover 4 is an inclined surface. The lower part 5a of the shape is formed so as to have the middle height. The through hole 4a of the cover 4 is an elongated through hole having a width and a length such that the frame caulking portion 5 is barely inserted.
上述のように、枠２にカバー４が取付けられた状態で、
カバー４から突出する枠かしめ部５の頭部を、枠シール
ド板３と斜交する方向に捻る。すると第５図に示すよう
に透孔4aの周囲が、枠かしめ部５の下部5aの傾斜により
内側へ押圧されて陥没し、枠シールド板３の切欠3aの両
側角部3bに接触し、シールド効果を向上させることがで
きる。As described above, with the cover 4 attached to the frame 2,
The head of the frame caulking portion 5 protruding from the cover 4 is twisted in a direction oblique to the frame shield plate 3. Then, as shown in FIG. 5, the periphery of the through hole 4a is pressed inward by the inclination of the lower portion 5a of the frame caulking portion 5 and is depressed, and contacts both side corner portions 3b of the notch 3a of the frame shield plate 3 to shield the shield. The effect can be improved.
［考案が解決しようとする課題］ ところが透孔4aの周囲を押圧されたカバーは、第５図に
示すように、枠シールド板３の両側角部3bを支点にして
反り、カバー４と枠シールド板３の上端部3cとの間に隙
間６ができてしまう。従ってカバー４と枠シールド板３
との接触面積が少なく、シールド効果が不充分であり、
また捻りの強弱によってカバー４と枠シールド板３との
隙間も微妙に変化し、振動等により電気的性能が不安定
になり易い問題点があった。[Problems to be Solved by the Invention] However, as shown in FIG. 5, the cover pressed around the through hole 4a warps with the corners 3b on both sides of the frame shield plate 3 as fulcrums, and the cover 4 and the frame shield are bent. A gap 6 is formed between the upper end portion 3c of the plate 3. Therefore, the cover 4 and the frame shield plate 3
The contact area with is small and the shielding effect is insufficient,
There is also a problem that the gap between the cover 4 and the frame shield plate 3 is subtly changed depending on the strength of the twist, and the electric performance is likely to be unstable due to vibration or the like.
本考案はこのような問題点を解決することを目的として
なされたものである。The present invention has been made for the purpose of solving such problems.
［課題を解決するための手段］ 本考案による電子機器のシールド構造は、枠シールド板
の上端に立設した枠かしめ部をカバー上面に突出させ、
この枠かしめ部を捻って前記カバーの下面を前記枠シー
ルド板の上端に押圧させるようにした電子機器等のシー
ルド板において、前記枠シールド板の上端に前記枠かし
め部に向けて傾斜する傾斜部を備え、前記カバーの、前
記傾斜部端面に対向した部分を塞がれていることを特徴
とするものである。[Means for Solving the Problems] In the shield structure for an electronic device according to the present invention, a frame caulking portion erected on the upper end of the frame shield plate is projected onto the upper surface of the cover,
A shield plate for an electronic device or the like in which the lower face of the cover is pressed against the upper end of the frame shield plate by twisting the frame crimp part, and an inclined part that is inclined toward the frame crimp part at the upper end of the frame shield plate. And a portion of the cover facing the end surface of the inclined portion is closed.
［作用］ 本考案は以上のような構成を有するものであるから、カ
バーを取付けてその透孔から枠かしめ部を突出させた状
態でこれを捻ると、カバーは枠かしめ部により透孔の周
辺が押し下げられて陥没し、その下面が枠シールド板の
傾斜部に押圧されて電気的接続が保たれる。[Operation] Since the present invention has the above-described structure, when the cover is attached and the frame caulking portion is projected from the through hole, when twisted, the cover is surrounded by the frame caulking portion around the through hole. Are depressed and depressed, and the lower surface thereof is pressed by the inclined portion of the frame shield plate to maintain electrical connection.
［実施例］ 第１図、第２図は本考案の要部を示す断面図である。図
中、第３図〜第５図の従来例と同様の部分には同一の符
号を付けてその説明を省略する。[Embodiment] FIG. 1 and FIG. 2 are sectional views showing a main part of the present invention. In the figure, the same parts as those in the conventional example shown in FIGS. 3 to 5 are designated by the same reference numerals and the description thereof will be omitted.
図において、枠シールド板３の上端3cには、枠かしめ部
５に近づくほど次第に低くなる傾斜部3dが設けられ、上
端3cと傾斜部3dの境界部分はゆるやかな曲線状に形成さ
れている。In the figure, an upper end 3c of the frame shield plate 3 is provided with an inclined portion 3d which is gradually lowered toward the frame crimp portion 5, and a boundary portion between the upper end 3c and the inclined portion 3d is formed in a gentle curved shape.
以上の構成による電子機器等の枠シールド板についてそ
の作用を以下詳細に説明する。The operation of the frame shield plate of the electronic device having the above configuration will be described in detail below.
前述の従来例と同様に、電子機器１にカバー４を被せる
と、第１図のように枠シールド板３の枠かしめ部５がカ
バー４の透孔4aから突出する。この状態は傾斜部3dの端
面の上にカバー４の、枠シールド板３の傾斜部3dの端面
に対向した部分を塞がれているので枠かしめ部５を捻る
と、第２図のように枠かしめ部５の下部5aがシールドカ
バー４の透孔4aの長辺側部分を押圧しその周辺が陥没す
る。この場合カバー４は、枠シールド板３の傾斜部3dに
沿って陥没するので、枠シールド板３の上端3c及び傾斜
部3dと隙間を生ずることなく接触するので、充分な電気
的接続が得られる。Similar to the above-mentioned conventional example, when the electronic device 1 is covered with the cover 4, the frame caulking portion 5 of the frame shield plate 3 projects from the through hole 4a of the cover 4 as shown in FIG. In this state, since the portion of the cover 4 facing the end surface of the inclined portion 3d of the frame shield plate 3 is closed on the end surface of the inclined portion 3d, twisting the frame crimping portion 5 as shown in FIG. The lower portion 5a of the frame crimping portion 5 presses the long side portion of the through hole 4a of the shield cover 4 and the periphery thereof is depressed. In this case, since the cover 4 is depressed along the inclined portion 3d of the frame shield plate 3, it comes into contact with the upper end 3c of the frame shield plate 3 and the inclined portion 3d without forming a gap, so that sufficient electrical connection can be obtained. .
また、枠シールド板３の切欠3aの全長Ｌは透孔4aの全長
ｌより短くなるように設定すると、切欠3aの両側角部3b
とカバー４とは接触しないので、第５図のような隙間６
が生ずるようなことがない。If the total length L of the cutout 3a of the frame shield plate 3 is set to be shorter than the total length l of the through hole 4a, both side corners 3b of the cutout 3a are set.
And the cover 4 do not come into contact with each other, the gap 6 as shown in FIG.
Will never occur.
［考案の効果］ 以上のように本考案によれば、枠シールド板に設けられ
た枠かしめ部の両側の枠シールド板上端部分が枠かしめ
部に向けて内側に傾斜しているので、枠かしめ部により
カバーを陥没させた時に、カバーと枠シールド板上端部
との接触が極めて良好に保たれる。[Advantage of Invention] As described above, according to the present invention, since the upper end portions of the frame shield plate on both sides of the frame crimping portion provided on the frame shield plate are inclined inward toward the frame crimping portion, the frame crimping is performed. When the cover is depressed by the portion, the contact between the cover and the upper end of the frame shield plate can be kept very well.
第１図は本考案の一実施例を示す要部断面図、第２図は
その動作説明に供する要部断面図、第３図は本考案を適
用しうる従来の電子機器の組立図、第４図は従来例を示
す要部断面図、第５図はその動作説明に供する要部断面
図である。 １……電子機器、２……枠、３……枠シールド板、3c…
…上端、3d……傾斜部、４……カバー、５……枠かしめ
部。1 is a sectional view of an essential part showing an embodiment of the present invention, FIG. 2 is a sectional view of an essential part for explaining the operation thereof, and FIG. 3 is an assembly view of a conventional electronic device to which the present invention can be applied. FIG. 4 is a cross-sectional view of the main part showing a conventional example, and FIG. 5 is a cross-sectional view of the main part used for explaining the operation thereof. 1 ... Electronic device, 2 ... Frame, 3 ... Frame shield plate, 3c ...
… Upper end, 3d …… Inclined part, 4 …… Cover, 5 …… Frame caulking part.
Claims (1)
をカバー上面に突出させ、前記枠かしめ部を捻って前記
カバーの下面を前記枠シールド板の上端に押圧させるよ
うにした電子機器等のシールド板において、前記枠シー
ルド板の上端に前記枠かしめ部に向けて傾斜する傾斜部
を備え、前記カバーの、前記傾斜部端面に対向した部分
を塞がれていることを特徴とする電子機器のシールド構
造。1. An electronic device in which a frame crimping portion erected on an upper end of a frame shield plate is projected to an upper surface of a cover, and the frame crimping portion is twisted so that a lower surface of the cover is pressed against an upper end of the frame shield plate. In the shield plate such as the above, the frame shield plate is provided with an inclined portion inclined toward the frame crimping portion at an upper end thereof, and a portion of the cover facing the inclined portion end surface is closed. Shield structure for electronic devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989050157U JPH071835Y2 (en) | 1989-04-27 | 1989-04-27 | Electronic device shield structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989050157U JPH071835Y2 (en) | 1989-04-27 | 1989-04-27 | Electronic device shield structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02140897U JPH02140897U (en) | 1990-11-26 |
| JPH071835Y2 true JPH071835Y2 (en) | 1995-01-18 |
Family
ID=31568464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989050157U Expired - Lifetime JPH071835Y2 (en) | 1989-04-27 | 1989-04-27 | Electronic device shield structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH071835Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0514556Y2 (en) * | 1985-08-21 | 1993-04-19 |
-
1989
- 1989-04-27 JP JP1989050157U patent/JPH071835Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02140897U (en) | 1990-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |