JP3085865B2 - Circuit unit shielding device - Google Patents
Circuit unit shielding deviceInfo
- Publication number
- JP3085865B2 JP3085865B2 JP06273190A JP27319094A JP3085865B2 JP 3085865 B2 JP3085865 B2 JP 3085865B2 JP 06273190 A JP06273190 A JP 06273190A JP 27319094 A JP27319094 A JP 27319094A JP 3085865 B2 JP3085865 B2 JP 3085865B2
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- printed circuit
- shield case
- lower edge
- 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 - Fee Related
Links
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、プリント基板にシール
ドケースを組み合わせ、回路ユニットの電磁遮蔽をする
シールド装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield device for electromagnetically shielding a circuit unit by combining a printed board with a shield case.
【０００２】[0002]
【従来の技術】一般に電子機器における回路ユニットは
電磁遮蔽をする必要があり、そのシールド装置としてた
とえば特開昭６０−５２０９８号公報に記載されたもの
が知られている。このシールド装置は図５および図６に
示すように枠状をなした金属製のシールドケース１の側
板に、プリント基板２の当り部３と、プリント基板２を
押え止める切り起し片４を形成し、シールドケース１内
に嵌め込まれた前記プリント基板２の外縁部を固定して
いる。また、プリント基板２を正規の位置とするため
に、シールドケース１の側板の内側にプリント基板当て
５を形成している。2. Description of the Related Art Generally, a circuit unit in an electronic device needs to be shielded from electromagnetic waves, and a shield device disclosed in, for example, Japanese Patent Application Laid-Open No. 60-52098 is known. In this shield device, as shown in FIGS. 5 and 6, a contact portion 3 of a printed board 2 and a cut-and-raised piece 4 for holding down the printed board 2 are formed on a side plate of a metal-made shield case 1 having a frame shape. The outer edge of the printed circuit board 2 fitted in the shield case 1 is fixed. Further, a printed circuit board contact 5 is formed inside the side plate of the shield case 1 in order to position the printed circuit board 2 at a regular position.
【０００３】[0003]
【発明が解決しようとする課題】前記従来のシールド装
置は、シールドケース１の板厚が厚い場合、切り起し片
４のばね性が堅く、プリント基板２をシールドケース１
に挿入しにくく、したがって、シールドケース１の板厚
が制限される問題がある。また、シールドケース１にプ
リント基板当て５を形成するため、前記シールドケース
１の製造のための金型が複雑になり、金型費がかさむ問
題がある。In the above-mentioned conventional shield device, when the plate thickness of the shield case 1 is large, the cut-and-raised piece 4 has a strong spring property, and the printed circuit board 2 is connected to the shield case 1.
Therefore, there is a problem that the plate thickness of the shield case 1 is limited. Further, since the printed circuit board contact 5 is formed on the shield case 1, a mold for manufacturing the shield case 1 is complicated, and there is a problem that the mold cost is increased.
【０００４】本発明は前記従来の問題に留意し、シール
ドケースのプリント基板への組立が容易で、また、簡単
な構成でプリント基板の位置だしができる回路ユニット
のシールド装置を提供することを目的とする。An object of the present invention is to provide a shield device for a circuit unit which can easily assemble a shield case to a printed circuit board and can locate the printed circuit board with a simple structure, taking the above conventional problems into consideration. And
【０００５】[0005]
【課題を解決するための手段】本発明は前記目的を達成
するため、シールドケースの下縁にＬ状切溝によって横
方向に長い弾性片を形成し、この弾性片の先端に内方向
に切り起こした舌片を設け、前記シールドケースの下縁
をプリント基板のスリット状の挿入孔に挿入し、前記舌
片をプリント基板の裏面に係止させる回路ユニットのシ
ールド装置の構成とする。According to the present invention, in order to achieve the above-mentioned object, an elastic piece which is long in the lateral direction is formed at the lower edge of a shield case by an L-shaped notch, and the elastic piece is cut inward at the tip thereof. A raised tongue is provided, a lower edge of the shield case is inserted into a slit-shaped insertion hole of the printed circuit board, and the tongue is engaged with a back surface of the printed circuit board to form a shield device of a circuit unit.
【０００６】[0006]
【作用】上記構成において、シールドケースの下縁をプ
リント基板の挿入孔に挿入するとき、舌片は挿入孔に縁
によって押される。このとき、舌片を設けた弾性片がた
わみ、前記舌片および弾性片を大きな力を要することな
く挿入孔に容易に通すことができ、前記挿入孔を通った
舌片は復元し、プリント基板の裏面に係止し、プリント
基板を確実に保持することとなる。In the above construction, when the lower edge of the shield case is inserted into the insertion hole of the printed circuit board, the tongue piece is pushed by the edge into the insertion hole. At this time, the elastic piece provided with the tongue piece is bent, and the tongue piece and the elastic piece can be easily passed through the insertion hole without requiring a large force. And the printed circuit board is securely held.
【０００７】[0007]
【実施例】以下に本発明の一実施例の回路ユニットを図
１〜図４を参照して説明する。図において６は金属製の
枠形をしたシールドケースであり、７は電子部品（図示
せず）を実装し、前記シールドケース６を組み合わせる
プリント基板である。前記シールドケース６の側板８の
下縁には、複数のＬ状切溝９によって横方向に長い複数
の弾性片１０を形成してあり、前記各弾性片１０の先端
部には内側方向に切り起こされた舌片１１を設けてい
る。また、前記シールドケース６の各側板８の下縁には
台形状の切欠部１２を形成している。DESCRIPTION OF THE PREFERRED EMBODIMENTS A circuit unit according to an embodiment of the present invention will be described below with reference to FIGS. In the drawing, reference numeral 6 denotes a metal frame-shaped shield case, and reference numeral 7 denotes a printed circuit board on which electronic components (not shown) are mounted and the shield case 6 is combined. On the lower edge of the side plate 8 of the shield case 6, a plurality of elastic pieces 10 which are long in the lateral direction are formed by a plurality of L-shaped grooves 9, and the distal end of each of the elastic pieces 10 is cut inward. A raised tongue 11 is provided. A trapezoidal cutout 12 is formed at the lower edge of each side plate 8 of the shield case 6.
【０００８】一方、プリント基板７には、前記シールド
ケース６の下縁が挿入できるスリット状の挿入孔１３を
形成してあり、隣接する２つの挿入孔１３の端部間に位
置する無孔部１４は、位置規制部として前記シールドケ
ース６の台形状の切欠部１２に対応する関係をもってい
る。On the other hand, a slit-shaped insertion hole 13 into which the lower edge of the shield case 6 can be inserted is formed in the printed board 7, and a non-porous portion located between the ends of two adjacent insertion holes 13 is formed. Reference numeral 14 has a relationship corresponding to the trapezoidal notch 12 of the shield case 6 as a position restricting portion.
【０００９】上記構成において、図１に示す状態よりシ
ールドケース６の下縁部を図２に示すようにプリント基
板７の挿入孔１３に挿入する。この挿入において、シー
ルドケース６の舌片１１は、挿入孔１３の縁によって一
旦、外方に押し込まれる。このとき、舌片１１をもつ弾
性片１０は細長いので、押圧によってたわみ、したがっ
てシールドケース６の下縁は大きな力を要することなく
容易にプリント基板７の挿入孔１３に挿入できる。前記
シールドケース６の下縁がプリント基板７の挿入孔７に
挿入されると、弾性片１０および舌片１１は復元し、舌
片１１がプリント基板７の下面に当たり、プリント基板
７を固定できる。In the above configuration, the lower edge of the shield case 6 is inserted into the insertion hole 13 of the printed circuit board 7 as shown in FIG. 2 from the state shown in FIG. In this insertion, the tongue piece 11 of the shield case 6 is once pushed outward by the edge of the insertion hole 13. At this time, since the elastic piece 10 having the tongue piece 11 is elongated, the elastic piece 10 is bent by pressing, and therefore the lower edge of the shield case 6 can be easily inserted into the insertion hole 13 of the printed circuit board 7 without requiring a large force. When the lower edge of the shield case 6 is inserted into the insertion hole 7 of the printed circuit board 7, the elastic piece 10 and the tongue piece 11 are restored, and the tongue piece 11 hits the lower surface of the printed circuit board 7, and the printed circuit board 7 can be fixed.
【００１０】また、前記プリント基板７の挿入孔１３に
シールドケース６の下縁を挿入するとき、図３で示すプ
リント基板６の隣接する２つの挿入孔１３間の無孔部１
４は、シールドケース６の下縁に形成した台形状の切欠
部１２に入り込む。ここで切欠部１２の両内側はテーパ
ーを有しているので、前記無孔部１４の端部がテーパー
に案内され、すなわち左右にプリント基板７が位置規制
されることになり、正常な位置におかれる。When the lower edge of the shield case 6 is inserted into the insertion hole 13 of the printed circuit board 7, the non-porous portion 1 between two adjacent insertion holes 13 of the printed circuit board 6 shown in FIG.
4 enters a trapezoidal cutout 12 formed on the lower edge of the shield case 6. Here, since both inner sides of the cutout portion 12 have a taper, the end of the non-porous portion 14 is guided by the taper, that is, the position of the printed circuit board 7 is regulated right and left, so that the normal position is obtained. I will put it.
【００１１】つぎにプリント基板７の下面の配線をディ
ップ半田する場合、シールドケース６の下縁はプリント
基板６のアース回路と半田付けされるが、図４に示すよ
うに同時にシールドケース６の下縁に形成されたＬ状切
溝９を半田で塞ぐことができるので、プリント基板６の
下面に実装した電子部品、回路のシールドをより良くす
ることができる。Next, when the wiring on the lower surface of the printed circuit board 7 is subjected to dip soldering, the lower edge of the shield case 6 is soldered to the ground circuit of the printed circuit board 6, but at the same time as shown in FIG. Since the L-shaped incision 9 formed on the edge can be closed with solder, the shielding of the electronic components and circuits mounted on the lower surface of the printed circuit board 6 can be improved.
【００１２】[0012]
【発明の効果】前記実施例の説明より明らかなように、
本発明の回路ユニットのシールド装置は、シールドケー
スの下縁にＬ状の切溝によって横方向に長い弾性片を形
成し、この弾性片の先端に内方向に切り起した舌片を設
け、これら固定部材をもつシールドケースの下縁をプリ
ント基板の挿入孔に挿入してシールドケースを固定する
ようにしたため、前記シールドケースの挿入が強い力を
要することなく容易に挿入でき、また、確実な固定がで
きる。また、シールドケースの下縁に台形状の切欠部を
設け、プリント基板の２つの挿入孔間の無孔部を前記切
欠部に嵌め込むようにしたため、プリント基板が切欠部
のテーパー部に案内されて左右の位置を調整されながら
正規位置に固定できるものであり、その価値は大きい。As is clear from the description of the above embodiment,
In the shield device of the circuit unit of the present invention, an elastic piece long in the lateral direction is formed on the lower edge of the shield case by an L-shaped groove, and a tongue piece cut and raised inward at the tip of the elastic piece is provided. The lower edge of the shield case having the fixing member is inserted into the insertion hole of the printed circuit board to fix the shield case. Therefore, the shield case can be easily inserted without requiring a strong force, and the secure fixation is possible. Can be. Also, a trapezoidal cutout is provided at the lower edge of the shield case, and the non-hole portion between the two insertion holes of the printed board is fitted into the cutout, so that the printed board is guided by the tapered portion of the cutout. It can be fixed to the normal position while adjusting the left and right positions, and its value is great.
【図１】本発明の一実施例の回路ユニットのシールド装
置の分解斜視図FIG. 1 is an exploded perspective view of a shield unit of a circuit unit according to an embodiment of the present invention.
【図２】同回路ユニットのシールド装置の要部断面図FIG. 2 is a sectional view of a main part of a shield device of the circuit unit.
【図３】同回路ユニットのシールド装置の一部分の分解
斜視図FIG. 3 is an exploded perspective view of a part of a shield device of the circuit unit.
【図４】同回路ユニットのシールド装置の斜視図FIG. 4 is a perspective view of a shield device of the circuit unit.
【図５】従来の回路ユニットのシールド装置の斜視図FIG. 5 is a perspective view of a conventional circuit unit shielding device.
【図６】同回路ユニットのシールド装置の断面図FIG. 6 is a sectional view of a shield device of the circuit unit.
６ シールドケース ７ プリント基板 ８ 側板 ９ Ｌ状切溝 １０ 弾性片 １１ 舌片 １２ 台形状の切欠部 １３ スリット状の挿入孔 １４ 無孔部 Reference Signs List 6 shield case 7 printed circuit board 8 side plate 9 L-shaped notch 10 elastic piece 11 tongue piece 12 trapezoidal cutout 13 slit-shaped insertion hole 14 non-hole
フロントページの続き (56)参考文献 特開 平５−82983（ＪＰ，Ａ) 特開 平６−132689（ＪＰ，Ａ) 実開 昭59−52696（ＪＰ，Ｕ) 実開 昭50−71764（ＪＰ，Ｕ) 実開 昭57−98056（ＪＰ，Ｕ) 実開 昭54−173606（ＪＰ，Ｕ) 実開 昭53−113017（ＪＰ，Ｕ) 実開 昭63−153598（ＪＰ，Ｕ) 実開 平３−6897（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H05K 9/00 Continuation of the front page (56) References JP-A-5-82983 (JP, A) JP-A-6-132689 (JP, A) Fully open sho 59-52696 (JP, U) Really open sho 50-71764 (JP , U) Actually open 1979-98056 (JP, U) Actually open 1979-173606 (JP, U) Actually open 1979-113017 (JP, U) Actually open 1988-JP 163598 (JP, U) 3-6897 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H05K 9/00
Claims (3)
て横方向に長い弾性片を形成するとともに前記弾性片の
先端に内方向に切り起した舌片を設け、プリント基板に
は前記シールドケースの下縁に対応したスリット状の挿
入孔を形成し、前記シールドケースの下縁部をプリント
基板の挿入孔に挿入し、前記舌片をプリント基板の下面
に係止させた回路ユニットのシールド装置。1. An elastic piece which is long in the lateral direction is formed by an L-shaped groove at a lower edge of a shield case, and a tongue piece which is cut and raised inward at an end of the elastic piece is provided on a printed circuit board. A shield-shaped insertion hole corresponding to a lower edge of the printed circuit board, a lower edge of the shield case is inserted into an insertion hole of the printed circuit board, and the tongue piece is locked on a lower surface of the printed circuit board. .
を有し、プリント基板は２つの挿入孔間に位置し、前記
切欠部に挿入される無孔部を有する請求項１記載の回路
ユニットのシールド装置。2. The circuit according to claim 1, wherein the shield case has a notch formed in the lower edge at the lower edge, and the printed circuit board has a non-porous portion located between the two insertion holes and inserted into the notch. Unit shield device.
ルドケースの下縁部におけるＬ状切溝を半田で埋めてな
る請求項１記載の回路ユニットのシールド装置。3. The shield device for a circuit unit according to claim 1, wherein the L-shaped notch at the lower edge of the shield case inserted into the insertion hole of the printed board is filled with solder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06273190A JP3085865B2 (en) | 1994-11-08 | 1994-11-08 | Circuit unit shielding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06273190A JP3085865B2 (en) | 1994-11-08 | 1994-11-08 | Circuit unit shielding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08139482A JPH08139482A (en) | 1996-05-31 |
| JP3085865B2 true JP3085865B2 (en) | 2000-09-11 |
Family
ID=17524360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06273190A Expired - Fee Related JP3085865B2 (en) | 1994-11-08 | 1994-11-08 | Circuit unit shielding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3085865B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4972391B2 (en) * | 2006-12-13 | 2012-07-11 | 新光電気工業株式会社 | Package with shield case and method of manufacturing package with shield case |
| JP5289712B2 (en) * | 2007-01-30 | 2013-09-11 | 三菱電機株式会社 | Shield cover mounting structure and display device |
| JP5197435B2 (en) * | 2009-02-25 | 2013-05-15 | 京セラ株式会社 | Electronics |
-
1994
- 1994-11-08 JP JP06273190A patent/JP3085865B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08139482A (en) | 1996-05-31 |
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