JPH02229496A - Electronic apparatus case - Google Patents
Electronic apparatus caseInfo
- Publication number
- JPH02229496A JPH02229496A JP4949189A JP4949189A JPH02229496A JP H02229496 A JPH02229496 A JP H02229496A JP 4949189 A JP4949189 A JP 4949189A JP 4949189 A JP4949189 A JP 4949189A JP H02229496 A JPH02229496 A JP H02229496A
- Authority
- JP
- Japan
- Prior art keywords
- shield
- case
- base frame
- contact pieces
- shield lid
- 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
- 230000000694 effects Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は内部に電子回路が収納される電子機器ケース
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic device case in which an electronic circuit is housed.
この種のケースとしては、例えば特開昭61−2070
97号公報に示されているように、基枠とそれに被せ付
けるようにしたシールド蓋とから構成されると共に、シ
ールド蓋はその四周に夫々基枠の側壁における外面に弾
接させる為の弾接片を備えているものがある。Examples of this type of case include, for example, Japanese Patent Application Laid-Open No. 61-2070
As shown in Publication No. 97, it is composed of a base frame and a shield lid that is placed over the base frame, and the shield lid has elastic contacts on each of its four peripheries to make it come into elastic contact with the outer surface of the side wall of the base frame. Some have pieces.
この従来ケースではシールド蓋を基枠に被せ付けた状態
でのシールド性は非常に良好であるが、その被せ付けを
行おうとする場合に、四周の弾接片を全て同時に基粋の
側壁の外面に沿わせねばならず、その作業が非常に行い
難い問題点があった.本発明は以上のような点に鑑みて
なされたもので、その目的とするところは、シールド蓋
の被せ付け作業を非常に簡易に行なえ、しかも被せ付け
状態でのシールド性は非常に良好となるようにした電子
機器ケースを提供することである。In this conventional case, the shielding performance is very good when the shield cover is placed on the base frame, but when trying to do so, all four circumferential elastic contact pieces are simultaneously attached to the outer surface of the base side wall. The problem was that this work was extremely difficult to perform. The present invention has been made in view of the above points, and its purpose is to make it possible to perform the work of putting the shield lid on very easily, and to provide very good shielding properties in the put-on state. It is an object of the present invention to provide an electronic device case that has the following features.
上記目的を達成する為に、本願発明は前記請求の範囲記
載の通りの手段を講じたものであって、その作用は次の
通りである.
〔作用〕
基枠にシールド蓋を閉着する場合、弾接片を基枠におけ
る一方の相対向する側壁の外面に弾接させる。この場合
、両接触片は他の相対向する側壁間に容易に入り込む.
シールド蓋を閉着した基枠を外ケース内に収納すると、
への字状のシールド蓋は押伸ばされて、両接触片が上記
他の相対向する側壁の内面に夫々圧接する.
〔実施例〕
以下本願の実施例を示す図面について説明する.図面に
は高周波電子機器の一例としてBSコンバータが示され
る.このBSコンバータは導電材製例えばアルミダイカ
スト成形品の外ケースlと、その内部に納めるシールド
ケース2とを有する。In order to achieve the above object, the present invention takes the measures as described in the claims above, and its effects are as follows. [Operation] When closing the shield lid to the base frame, the elastic contact piece is brought into elastic contact with the outer surface of one opposing side wall of the base frame. In this case, both contact pieces easily fit between the other opposing side walls.
When the base frame with the shield lid closed is stored inside the outer case,
The square-shaped shield lid is stretched out, and both contact pieces are brought into pressure contact with the inner surfaces of the other opposing side walls. [Example] Drawings showing examples of the present application will be explained below. The drawing shows a BS converter as an example of high-frequency electronic equipment. This BS converter has an outer case l made of a conductive material, for example, an aluminum die-cast molded product, and a shield case 2 housed inside the outer case l.
以下上記シールドケース2について説明する。3は基枠
で、導電材例えばアルミダイカスト成形品をもって構成
されている.この基枠3は第3図に明示される如く互い
に反対側の面に開口する二つの電子回路収納用凹部を有
している。尚その凹部は一方が設けられているだけのも
のであってもよい.第4図に示す4は該基枠3に備えさ
せた一次放射器連結用のフランジで、信号導入部として
示す導波管5を備える。6は基枠3の凹部内に収納した
電子回路を示し、回路基板(例えばプリント基板) 6
aに種々の電子部品6bを装着して構成してある.該電
子回路6の内、例えば6Cは高周波増幅及び周波数変換
回路、6dは局部発振器、6eは中間周波増幅回路であ
る。7は基枠3に取付けた出力部として示す接栓座であ
る.次に8はシールドケース2におけるシールド蓋を示
し、導電性が良く且つ弾力性の良好な金属板例えば0.
2N厚の錫メッキ鉄板(他に燐青銅板でもよい)をプレ
ス加工して形成されている.該シールド蓋8における主
体部8aは、上記基枠3における凹部の開口部3aを閉
着するに充分な大きさに形成してあり、第1図及び第4
図に示される如く中間部においてへの字状に屈曲させて
ある。9.9はシールド蓋8における一方の相対する縁
部に備えられた弾接片で、上記凹部の開口縁3bにおけ
る一方の相対向する側壁3b’,3b’ の外面3c
, 3cに弾接させる為のものであり、充分なばね効果
が得られるよう第3図に示されるような断面形状に形成
してある。またこの弾接片9は短かい幅寸法のものが相
互に間隔を隔てて多数備えてあるが、それに代えて、長
寸法のものを第1図にイ、口で示す各々の部分に備えて
もよい. 10. 10はシールド蓋8における他方の
相対する縁部に備えられた接触片で、上記開口縁3bに
おける他方の相対向する側壁3b”, 3b”の内面3
d,3dに接触させる為のものである.これらの接触片
相互間の距離は、上記シールド蓋8の主体部8aがへの
字状に屈曲されることによって、上記内面3d,3d相
互間の距離よりも小さくしてある. 11は中間部に備
えられた突片で、主体部8aの一部を図示の如く切り起
こして形成してあり、その上面が外ケースlの内面に押
圧される被押部11aとなっている。該突片l1は両端
が主体部8aと連結しておって、耐押圧強度が高く (
座屈し難いように)なっている。該突片11は充分に小
さく形成(例えば幅が1.8lで長さが9am)されて
、その切り起こしによる孔を通しての高周波の実質的な
漏洩が少なくなるようにしてある。該突片1lの高さは
、外ケース1内番ε基枠3を挿入した状態における外ケ
ースlの内面1bと基枠3との間の隙間に対応する寸法
よりも僅かに大きく形成されて、被押部11aの高さが
後述の如き作用を得るに充分な高さとなるようにしてあ
る。尚第1図に示される符号13は外ケースlに対して
シールドケ,−ス2の基枠3を固定する為の止具を示し
、例えば図示される如きねじ棒が用いられる. 14は
止具13に装着した防水パノキンである。The shield case 2 will be explained below. Reference numeral 3 denotes a base frame, which is made of a conductive material such as an aluminum die-cast molded product. As clearly shown in FIG. 3, the base frame 3 has two recesses for accommodating electronic circuits that open on opposite sides. Note that the recess may be provided only on one side. Reference numeral 4 shown in FIG. 4 is a flange for connecting the primary radiator provided on the base frame 3, and is provided with a waveguide 5 shown as a signal introduction section. 6 indicates an electronic circuit housed in the recess of the base frame 3, and is a circuit board (for example, a printed circuit board) 6
It is constructed by attaching various electronic parts 6b to a. Among the electronic circuits 6, for example, 6C is a high frequency amplification and frequency conversion circuit, 6d is a local oscillator, and 6e is an intermediate frequency amplification circuit. 7 is a plug seat shown as an output part attached to the base frame 3. Next, reference numeral 8 indicates a shield lid in the shield case 2, which is a metal plate with good conductivity and elasticity, such as 0.
It is formed by pressing a 2N thick tin-plated iron plate (phosphor bronze plate may also be used). The main body portion 8a of the shield lid 8 is formed to be large enough to close the opening 3a of the recess in the base frame 3, as shown in FIGS. 1 and 4.
As shown in the figure, it is bent in a U-shape at the middle portion. Reference numeral 9.9 denotes an elastic contact piece provided on one opposing edge of the shield lid 8, and the outer surface 3c of one opposing side wall 3b', 3b' at the opening edge 3b of the recess.
, 3c, and is formed to have a cross-sectional shape as shown in FIG. 3 to obtain a sufficient spring effect. In addition, the elastic contact pieces 9 are provided with a large number of short width pieces spaced apart from each other, but instead, long size pieces are provided at each part indicated by ``a'' and ``mouth'' in Fig. 1. Good too. 10. Reference numeral 10 denotes a contact piece provided on the other opposing edge of the shield lid 8, and the inner surface 3 of the other opposing side wall 3b'', 3b'' at the opening edge 3b.
This is for contacting d and 3d. The distance between these contact pieces is made smaller than the distance between the inner surfaces 3d, 3d by bending the main body portion 8a of the shield lid 8 into a square shape. Reference numeral 11 denotes a protruding piece provided in the intermediate part, which is formed by cutting and raising a part of the main body part 8a as shown in the figure, and its upper surface serves as a pressed part 11a that is pressed against the inner surface of the outer case l. . The projecting piece l1 has both ends connected to the main body part 8a, and has high pressure resistance (
(so that it is difficult to buckle). The projecting piece 11 is formed to be sufficiently small (for example, 1.8 l in width and 9 am in length) so that substantial leakage of high frequency waves through the hole formed by cutting and raising it is reduced. The height of the protruding piece 1l is formed to be slightly larger than the dimension corresponding to the gap between the inner surface 1b of the outer case 1 and the base frame 3 when the inner number ε base frame 3 of the outer case 1 is inserted. The height of the pressed portion 11a is set to be a height sufficient to obtain the functions described below. The reference numeral 13 shown in FIG. 1 indicates a stopper for fixing the base frame 3 of the shield case 2 to the outer case l, and for example, a threaded rod as shown in the figure is used. 14 is a waterproof panokin attached to the stopper 13.
次に上記構成の電子機器の組立てについて説明する。先
ず基枠3内に周知の如《電子回路6を装着する.次に第
4図に示される如く、その基枠3の開口部3aにシール
ド蓋8を被せ付ける.この場合、両接触片10. 10
相互間の距離が側壁3b”, 3b“の内面3d, 3
d相互間の距離よりも小さくなっている為、両接触片1
0. 10はそれら内面3d, 3d相互の間に容易に
位置する。従って、一方の相対向する縁部の弾接片9を
側壁3b’ の外面3cに至らせることのみに専念すれ
ば良く、シールド蓋8の被せ付け作業は容易である.上
記のような作業によって基枠3の両開口部3a, 3a
に夫々シールド蓋8を被せてシールドケース2が完成さ
れたならば、そのシールドケース2を外ケースl内にそ
の開口部1aから第2図に示されるように挿入し、止具
l3でもって外ケースlと固定する。これでもってBS
コンバータの組立てが完了する.
上記のような組立状態では、突片11の被押部11aが
外ケースlの内面tbに押圧されて、主体部8aは平坦
な状態に伸ばされる.この為、第3図の如く両縁部近く
の内面が側壁3b’ の端面に接触してそこでの電気的
導通が良好となり、また第2図の如く両接触片10.
loハ側壁3b”, 3b’ノ内面3d, 3tH.:
夫々圧接してそこでの電気的導通が良好となる.また当
然のことながら、多数の弾接片9は側壁3b゛ の外面
3Cに夫々の弾力性をもって圧接し、両者間は良好な電
気的導通状態となる.これらのことにより、基枠3とシ
ールドM8とは高周波的に完全に一体化し、内部の電子
回路6は極めて良好なシールド状態となる.それのみな
らず、突片11と外ケース1の内面1bとの接触によっ
てシールド蓋8と外ケースlとの間の電気的導通もより
良好となる。この点においても上記電子回路6のシール
ド状態はより良好となる。Next, the assembly of the electronic device having the above configuration will be explained. First, the electronic circuit 6 is mounted inside the base frame 3 as is well known. Next, as shown in FIG. 4, a shield lid 8 is placed over the opening 3a of the base frame 3. In this case, both contact pieces 10. 10
The distance between them is the inner surfaces 3d, 3 of the side walls 3b'', 3b''
d is smaller than the distance between each other, so both contact pieces 1
0. 10 is easily located between the inner surfaces 3d and 3d. Therefore, it is only necessary to concentrate on bringing the elastic contact piece 9 of one opposing edge to the outer surface 3c of the side wall 3b', and the work of fitting the shield lid 8 is easy. Both openings 3a, 3a of the base frame 3 are removed by the above-mentioned work.
Once the shield case 2 is completed by covering each of the shield lids 8, insert the shield case 2 into the outer case l through the opening 1a as shown in FIG. 2, and remove it with the stopper l3. Fix it to case l. This is BS
Assembly of the converter is completed. In the assembled state as described above, the pressed portion 11a of the projecting piece 11 is pressed against the inner surface tb of the outer case l, and the main body portion 8a is stretched into a flat state. Therefore, as shown in FIG. 3, the inner surfaces near both edges come into contact with the end surfaces of the side wall 3b', resulting in good electrical continuity there, and as shown in FIG. 2, both contact pieces 10.
LO side wall 3b'', 3b' inner surface 3d, 3tH.:
They are pressed together and have good electrical continuity there. Also, as a matter of course, the large number of elastic contact pieces 9 come into pressure contact with the outer surface 3C of the side wall 3b' with their respective elasticity, and good electrical continuity is established between the two. As a result, the base frame 3 and the shield M8 are completely integrated in terms of high frequency, and the internal electronic circuit 6 is in an extremely good shielding state. Not only this, but the contact between the protruding piece 11 and the inner surface 1b of the outer case 1 also improves the electrical continuity between the shield lid 8 and the outer case l. In this respect as well, the shielding condition of the electronic circuit 6 becomes better.
次に第5〜7図は夫々シールド蓋の異なる実施例を示す
もので、第5、6図はシールドfi8eの中間部におけ
る突片lieの配設位置及びその数の異なる例を示し、
第7図はシールロIeの屈曲位置の異なる例を示すもの
である。Next, Figs. 5 to 7 show different embodiments of the shield lid, and Figs. 5 and 6 show examples in which the positions and number of protrusions lie are arranged in the middle part of the shield fi8e,
FIG. 7 shows examples of different bending positions of the seal lower Ie.
なお、機能上前図のものと同一又は均等構成と考えられ
る部分には、前図と同一の符号にアルファへ7}のeを
付して重複する説明を省略した.〔発明の効果〕
以上のように本発明にあっては、シールド蓋8における
一対の接触片10. 10相互間の距離が基枠3におけ
る一対の側壁3b”, 3ビの内面3d, 3d相互間
の距離よりも小さくなっているので、基枠3にシールド
蓋8を被せ付ける場合、シールドM8における一対の弾
接片9,9を基枠における一対の側壁3b”, 3b”
の外面3c, 3cに弾接させることに気を遣うだけで
、上記一対の接触片10. 10は上記内面3d, 3
d相互の間に自然にすうつと入れてしまうことができ、
シールド蓋8の被せ付け作業を非常に簡単に行い得る効
果がある.
しかも上記のような寸法関係の為、シールド蓋8を被せ
付けた状態では上記接触片10と内面3dとの間に隙間
が生じているものであっても、シールドケース2を外ケ
ースl内に収納した状態では、シールド蓋8の被押部i
taが外ケース1の内面1dに押されることによりシー
ルド蓋8が押し伸ばされて上記接触片10が上記内面3
dに圧接し、シールドケース2内は良好なシールド状態
となる効果がある。In addition, for parts that are considered to be functionally the same or equivalent to those in the previous figure, the same reference numerals as in the previous figure are appended with an e (alpha to 7}), and redundant explanations are omitted. [Effects of the Invention] As described above, in the present invention, the pair of contact pieces 10. 10 is smaller than the distance between the pair of side walls 3b" and the inner surfaces 3d of the base frame 3, 3d, so when the shield lid 8 is placed on the base frame 3, the distance between the shield M8 A pair of elastic contact pieces 9, 9 are attached to a pair of side walls 3b'', 3b'' of the base frame.
The above-mentioned pair of contact pieces 10. 10 is the inner surface 3d, 3
d can be inserted naturally between each other,
This has the effect of making the work of putting the shield lid 8 on very easy. Moreover, due to the above-mentioned dimensional relationship, even if there is a gap between the contact piece 10 and the inner surface 3d when the shield lid 8 is attached, the shield case 2 cannot be inserted into the outer case l. In the stored state, the pressed part i of the shield lid 8
ta is pushed against the inner surface 1d of the outer case 1, the shield lid 8 is pushed and stretched, and the contact piece 10 is pushed against the inner surface 3.
d, and the inside of the shield case 2 is effectively shielded.
図面は本願の実施例を示すもので、第1図は電子機器の
分解斜視図、第2図は同一部破断側面図、第3図は■一
■線断面図、第4図はシールド蓋を被せ付ける状態を示
す断面図、第5、6、7図は夫々シールド蓋の異なる実
施例を示す斜視図.l・・・外ケース、2・・・シール
ドケース、3・・・基枠、8・・・シールド蓋.
第
図The drawings show an embodiment of the present application, and Fig. 1 is an exploded perspective view of an electronic device, Fig. 2 is a partially cutaway side view of the same, Fig. 3 is a cross-sectional view taken along the line ■, and Fig. 4 shows a shield lid. Figures 5, 6, and 7 are perspective views showing different embodiments of the shield lid. l...outer case, 2...shield case, 3...base frame, 8...shield lid. Diagram
Claims (1)
から成り、上記シールドケースは、電子回路収納用の凹
部を備えている基枠と、上記基枠における凹部の開口部
を閉着する為のシールド蓋とから成る電子機器ケースに
おいて、上記シールド蓋は、上記開口部における一方の
相対向する側壁の外面に夫々弾接させる為の弾接片と、
他方の相対向する側壁の内面に夫々圧接させる為の接触
片とを夫々対応する端縁に備えていると共に、上記接触
片相互間の距離は上記他方の相対向する側壁の内面相互
間の距離よりも小さくしてあり、上記シールド蓋は上記
一対の接触片相互の中間部においてへの字状に屈曲され
ていると共に、該シールド蓋の中間部には、上記開口部
に対する閉着状態で上記外ケース内に収納されたときに
、外ケースの内面によって押圧されるようにした被押部
を備えてあり、しかも該被押部の高さは、上記外ケース
の内面による押圧状態では上記への字状のシールド蓋が
押し伸ばされて、上記一対の接触片が上記他方の相対向
する側壁内面に夫々圧接する状態となる高さにしてある
ことを特徴とする電子機器ケース。It consists of an outer case and a shield case that is housed inside the outer case, and the shield case includes a base frame having a recess for housing an electronic circuit, and a shield for closing the opening of the recess in the base frame. In an electronic device case comprising a lid, the shield lid includes elastic contact pieces for making elastic contact with outer surfaces of one opposing side wall of the opening, respectively;
Contact pieces for press-contacting the inner surfaces of the other opposing side walls are provided at corresponding edges, and the distance between the contact pieces is equal to the distance between the inner surfaces of the other opposing side walls. The shield lid is bent in a U-shape at an intermediate portion between the pair of contact pieces, and the intermediate portion of the shield lid has the aforementioned one in a closed state with respect to the opening. It is provided with a pressed part that is pressed by the inner surface of the outer case when stored in the outer case, and the height of the pressed part is lower than the height above when pressed by the inner surface of the outer case. An electronic device case characterized in that the square-shaped shield lid is stretched to a height such that the pair of contact pieces are in pressure contact with the inner surfaces of the other opposing side walls.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4949189A JPH02229496A (en) | 1989-03-01 | 1989-03-01 | Electronic apparatus case |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4949189A JPH02229496A (en) | 1989-03-01 | 1989-03-01 | Electronic apparatus case |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02229496A true JPH02229496A (en) | 1990-09-12 |
Family
ID=12832620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4949189A Pending JPH02229496A (en) | 1989-03-01 | 1989-03-01 | Electronic apparatus case |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02229496A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100285811B1 (en) * | 1996-11-20 | 2001-05-02 | 가타오카 마사타카 | Electronic apparatus |
JP2010182928A (en) * | 2009-02-06 | 2010-08-19 | Alps Electric Co Ltd | High-frequency unit |
JP2011209683A (en) * | 2010-03-12 | 2011-10-20 | Sumitomo Electric Device Innovations Inc | Optical transceiver |
-
1989
- 1989-03-01 JP JP4949189A patent/JPH02229496A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100285811B1 (en) * | 1996-11-20 | 2001-05-02 | 가타오카 마사타카 | Electronic apparatus |
JP2010182928A (en) * | 2009-02-06 | 2010-08-19 | Alps Electric Co Ltd | High-frequency unit |
JP2011209683A (en) * | 2010-03-12 | 2011-10-20 | Sumitomo Electric Device Innovations Inc | Optical transceiver |
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