JPH03224298A - Device for grounding circuit board - Google Patents
Device for grounding circuit boardInfo
- Publication number
- JPH03224298A JPH03224298A JP1991790A JP1991790A JPH03224298A JP H03224298 A JPH03224298 A JP H03224298A JP 1991790 A JP1991790 A JP 1991790A JP 1991790 A JP1991790 A JP 1991790A JP H03224298 A JPH03224298 A JP H03224298A
- Authority
- JP
- Japan
- Prior art keywords
- circuit board
- main body
- board
- connector
- grounding
- 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
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Mounting Of Printed Circuit Boards And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は機器本体に対して着脱自在となっているＣＰＵ
−ＲＯＭ−ＲＡＭ等の回路基板を接地する接地装置に関
するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a CPU that is detachable from a device body.
- It relates to a grounding device for grounding circuit boards such as ROM-RAM.
パーソナルコンピュータなどの電子機器では、多機能化
や大容量化を図るためＣＰＵやＲＯＭやＲＡＭなどの回
路基板の増設や組み替えが可能となっている。かかる回
路基板は機器本体内に挿入されて本体との電気的接続が
行なわれるが、この接続にあっては回路基板をグランド
状態とする必要があり、回路基板を接地する構造が従来
より採用されている。In electronic devices such as personal computers, circuit boards such as CPUs, ROMs, and RAMs can be added or rearranged in order to increase functionality and increase capacity. Such a circuit board is inserted into the main body of the device and electrically connected to the main body, but for this connection it is necessary to ground the circuit board, and a structure in which the circuit board is grounded has traditionally been adopted. ing.
第７図はその接地構造の従来例を示し、電子機器の本体
７１が導電性のケースとなっており、この本体７１に対
して回路基板７２が上方から垂直方向に挿入されること
により本体のコネクタ接続が行なわれると共に、回路基
板７２の装着が行なわれる。この回路基板７２の両側上
部には導電材で成形された基板取付板７３がねし止めさ
れている。この基板取付板７３は回路基板７２の幅方向
に延びており、回路基板７２を本体７１に挿入すると、
本体７１上面に接触するようになっている。FIG. 7 shows a conventional example of the grounding structure, in which a main body 71 of an electronic device is a conductive case, and a circuit board 72 is vertically inserted into the main body 71 from above. The connector connection is made, and the circuit board 72 is also attached. Board mounting plates 73 made of a conductive material are screwed onto both upper sides of the circuit board 72. This board mounting plate 73 extends in the width direction of the circuit board 72, and when the circuit board 72 is inserted into the main body 71,
It comes into contact with the upper surface of the main body 71.
そして、このアース板７３の延出端部を本体７１上面に
ねじ止めすることにより回路基板７２の取付けと接地が
行なわれる。The circuit board 72 is attached and grounded by screwing the extending end of the ground plate 73 to the upper surface of the main body 71.
従来技術では基板取付板７３を本体７１に連結するため
、ねじを必要としている。このため、このねじの締め付
は作業が面倒になっており、多数の回路基板の頻繁な交
換には不向きとなっている。In the prior art, screws are required to connect the board mounting plate 73 to the main body 71. For this reason, tightening the screws is a cumbersome task, making it unsuitable for frequent replacement of a large number of circuit boards.
また、回路基板７２を使用可能状態とするには、本体７
１への挿入によるコネクタ接続、基板取付板７３のねじ
止めによる固定と、本体７１との電気的接続を順に行な
う必要があり、作業が慎雑となっていた。またねじの使
用は、作業時にねじを本体７１内に落としてしまってこ
れを回収し忘れたときに、短絡による素子の破壊等の原
因ともなる。さらに、接地面積は基板取付板７３の大き
さで制限されるが、スペースの関係で基板取付板７３は
むやみに大きくできずおのずと接地面積に限界があった
。In addition, in order to make the circuit board 72 usable, the main body 7
It is necessary to connect the connector by inserting it into the main body 71, fixing the board mounting plate 73 with screws, and electrically connecting it to the main body 71 in this order, making the work complicated. Further, the use of screws may cause damage to the element due to short circuits if the screws are dropped into the main body 71 during work and are forgotten to be retrieved. Further, the ground contact area is limited by the size of the board mounting plate 73, but due to space limitations, the board mounting plate 73 cannot be made unnecessarily large, which naturally limits the ground contact area.
本発明はこのような事情を考慮してなされたものであり
、ねじ止めを不要とし、また本体への挿入たけで本体と
の十分な接地および７は気的接続を行なうことができる
回路基板の接地装置を提供することをその１，１的とし
ている。The present invention has been made in consideration of these circumstances, and provides a circuit board that does not require screws and can provide sufficient grounding and electrical connection to the main body simply by inserting it into the main body. One of its objectives is to provide a grounding device.
上記ｌ］的を達成するため本発明は、アース側となる機
器本体に挿入され、機器本体とコネクタ接続される回路
基板と、機、器本体の両側内面に設けられ、回路基板の
機器本体内への挿入を案内する左右一対のガイド板と、
−側が機器本体内面に接触すると共に、他側がガイド板
から抜け出て回路基板のアース部に圧接する導電性のス
プリング部材とを備えていることを特徴とする。In order to achieve the above objective, the present invention includes a circuit board that is inserted into the equipment main body serving as the ground side and connected to the equipment main body with a connector, and a circuit board that is provided on the inner surfaces of both sides of the equipment main body, and A pair of left and right guide plates that guide the insertion into the
The present invention is characterized in that it includes an electrically conductive spring member whose - side contacts the inner surface of the device main body, and whose other side comes out of the guide plate and comes into pressure contact with the ground portion of the circuit board.
この場合、アース部は、ブロック形状に形成され、回路
基板に単一のねじで係止されており、アース部の端部に
は、アース部から回路基板に、回路基板の挿脱用の取手
部材の軸支のためのピンが亘されているのが好ましい。In this case, the grounding part is formed in the shape of a block and is fixed to the circuit board with a single screw, and the end of the grounding part has a handle for inserting and removing the circuit board from the grounding part to the circuit board. Preferably, a pin for pivoting the member is spanned.
スプリング部材はガイド板と一体となっており、ガイド
板を機器の本体内に挿入することにより、スプリング部
材のセットが同時に行なわれる。このスプリング部材は
一側が本体に接触する一方、他側が本体に挿入される回
路基板のアース部に圧接されるため、回路基板の挿入操
作だけで回路基板を接地構造とすることができる。また
、スプリング部材はガイド板と共に左右一対に設けられ
、回路基板に左右両側から均等に圧接するため、本体側
のコネクタ接続における回路基板の位置決めを行なえる
ようになっている。The spring member is integrated with the guide plate, and by inserting the guide plate into the main body of the device, the spring members are set at the same time. One side of this spring member is in contact with the main body, while the other side is pressed into contact with the ground portion of the circuit board inserted into the main body, so that the circuit board can be made into a grounded structure simply by inserting the circuit board. Further, the spring members are provided in a pair on the left and right together with the guide plate, and are evenly pressed against the circuit board from both the left and right sides, so that the circuit board can be positioned when connecting the connector on the main body side.
また、請求項２の如く構成すれば、アース部は２点で回
路基板に係止され、アース部の廻り止めと取手部材の軸
支とを兼ねることが可能となる。Further, if configured as in claim 2, the ground portion is latched to the circuit board at two points, and can serve both as a rotation stopper of the ground portion and as a pivot support for the handle member.
第１図〜第３図は本発明の一実施例を示し、ＣＰＵ、Ｒ
ＯＭ、ＲＡＭなどの回路基板１と、回路基板１が挿入さ
れる機器本体２と、機器本体２内に設けられるガイド板
３およびスプリング部材４を備えている。回路基板１は
機器本体２に対して上方から差し込まれることにより、
その装着が行なわれる。また、この回路基板１の下端部
の適宜位置には基板コネクタ５が取り付けられている。1 to 3 show an embodiment of the present invention, in which the CPU, R
The device includes a circuit board 1 such as OM or RAM, a device main body 2 into which the circuit board 1 is inserted, and a guide plate 3 and a spring member 4 provided inside the device main body 2. By inserting the circuit board 1 into the device body 2 from above,
The installation is performed. Further, a board connector 5 is attached to an appropriate position on the lower end of the circuit board 1.
機器本体２は導電性金属で全体が構成されるが、導電性
金属メツキ表面に施されており、回路基板１に対してア
ース倶１となっている。The device main body 2 is entirely made of conductive metal, and the surface is plated with conductive metal, and serves as a ground 1 for the circuit board 1.
この機器本体２の底面の所定位置には回路基板１の基板
コネクタ５が接続される本体コネクタ６が設けられてい
る。ガイド板３はその機器本体２の両側の内面に一対設
けられて、機器本体２に挿入される回路基板１の案内を
行なう。そのためガイド板３は回路基板１が摺接するガ
イドレール７が上下方向に形成されている。また、この
ガイド板３はスプリング部材４を保持する保持部材とし
て作用する。スプリング部材４は導電性を有する細長形
状に成形されており、左右一対の各ガイド板３にそれぞ
れ組み付けられて使用される。A main body connector 6 to which a board connector 5 of the circuit board 1 is connected is provided at a predetermined position on the bottom surface of the device main body 2. A pair of guide plates 3 are provided on both inner surfaces of the device main body 2 to guide the circuit board 1 inserted into the device main body 2. Therefore, the guide plate 3 has guide rails 7 formed in the vertical direction on which the circuit board 1 slides. Further, this guide plate 3 acts as a holding member that holds the spring member 4. The spring member 4 is formed into an elongated electrically conductive shape, and is used by being assembled to each of the pair of left and right guide plates 3, respectively.
次に、このスプリング部材４およびガイド板３の構造と
その組み付は構造を説明する。Next, the structure of the spring member 4 and guide plate 3 and their assembly will be explained.
第３図に示すように、ガイド板３は上部４分にアース窓
８が形成される一方、下部部分にはフック窓９が形成さ
れており、フック窓９には楔形状のフック突起１０が側
面部分に形成されている。As shown in FIG. 3, the guide plate 3 has a grounding window 8 formed in its upper quarter, while a hook window 9 is formed in its lower part, and the hook window 9 has a wedge-shaped hook protrusion 10. It is formed on the side part.
スプリング部材４は縦長の側板部１１と、側板部１１と
上端部から前方に折り返された圧接部１２とが一体的に
形成されている。また、側板部１１の所定位置には鉤形
状に屈曲されたフック片１３が形成されている。圧接部
１２は、ガイド板３方向に突出するように折り返されて
おり、ガイド板３のアース窓８に挿入され、この挿入に
により、圧接部１２はばね性を有した状態でアース窓８
から反対側に抜け出るようになっている（第２図参照）
。The spring member 4 is integrally formed with a vertically long side plate portion 11 and a pressure contact portion 12 folded back forward from the upper end portion of the side plate portion 11. Further, a hook piece 13 bent into a hook shape is formed at a predetermined position of the side plate portion 11. The pressure contact portion 12 is folded back so as to protrude in the direction of the guide plate 3, and is inserted into the ground window 8 of the guide plate 3. Due to this insertion, the pressure contact portion 12 has a spring property and closes to the ground window 8.
(See Figure 2)
.
フック片１３にはフックスリット１４が形成されており
、ガイド板３のフック窓９に挿入される。A hook slit 14 is formed in the hook piece 13, and the hook piece 13 is inserted into the hook window 9 of the guide plate 3.
この挿入によりフックスリット１４がフック突起１０に
嵌め合わされ、これによりスプリング部材４はガイド板
３に外れ止め状態で組み付けられる。By this insertion, the hook slit 14 is fitted into the hook protrusion 10, and thereby the spring member 4 is assembled to the guide plate 3 without coming off.
そして、この組み付は状態でガイド板３を機器本体２内
面に接するように挿入すると、その側板部１１で機器本
体２内面に接触する。In this assembled state, when the guide plate 3 is inserted so as to come into contact with the inner surface of the device main body 2, the side plate portion 11 comes into contact with the inner surface of the device main body 2.
このようなガイド板３およびスプリング部材４を機器本
体２の左右両側の内面に取り付けた状態において、回路
基板１を第２図のように、機器本体２内に挿入する。With the guide plate 3 and spring member 4 attached to the left and right inner surfaces of the device main body 2, the circuit board 1 is inserted into the device main body 2 as shown in FIG.
第１図および第２図において、１５は回路基板１の上部
両側に取り付けられた回路基板１のアース部である導電
性のブロック突起であり、スプリング部月４の圧接部１
２との対応位置に設けられている。回路基板１の挿入に
より、このブロック突起１５はスプリング部材４の圧接
部１２に達し、同圧接部１２はそのばね力によりブロッ
ク突起１５に圧接される。これにより回路基板１はスプ
リング部材４を介して機器本体２とのアース接続が行な
われる。In FIGS. 1 and 2, reference numeral 15 denotes conductive block protrusions which are the grounding parts of the circuit board 1 and are attached to both sides of the upper part of the circuit board 1.
It is provided at a position corresponding to 2. When the circuit board 1 is inserted, the block protrusion 15 reaches the pressure contact portion 12 of the spring member 4, and the pressure contact portion 12 is pressed against the block protrusion 15 by the spring force. As a result, the circuit board 1 is grounded to the device main body 2 via the spring member 4.
また、スプリング部材４が左右一対設けられており、そ
の圧接部１２は回路基板１を左右両側から圧接している
。この両側からの圧接によって回路基板１の位置決めが
行なわれ、その基板コネクタ５が本体コネクタ６と合致
する。このため回路基板１を機器本体２に挿入するだけ
で、基板コネクタ５と本体コネクタ６との接続が無理な
く行なわれる。Further, a pair of left and right spring members 4 are provided, and the pressure contact portions 12 of the spring members 4 press the circuit board 1 from both the left and right sides. The circuit board 1 is positioned by pressure contact from both sides, and the board connector 5 matches the main body connector 6. Therefore, simply by inserting the circuit board 1 into the device main body 2, the connection between the board connector 5 and the main body connector 6 can be easily performed.
このような本実施例は回路基板１の挿入操作だけで接地
を行なうことができると共に、機器本体２とのコネクタ
接続を行なうことができるため、回路基板の一連の取付
操作を簡単に行なうことができる。さらにはスプリング
部材４がばね力で回路基板１のブロック突起１５に圧接
する構造であり、接地を確実に行なうことができると共
に、接地面積も十分に確保することができる。In this embodiment, it is possible to perform grounding simply by inserting the circuit board 1, and also to connect the connector to the main body 2 of the device, making it easy to perform a series of circuit board installation operations. can. Furthermore, the structure is such that the spring member 4 is pressed against the block protrusion 15 of the circuit board 1 by spring force, so that grounding can be ensured and a sufficient grounding area can be secured.
第４図〜第６図は本発明の別の実施例を示す。4-6 show another embodiment of the invention.
ブロック突起１５はその上部にブラケット１６を備え、
このブラケット１６にはビン１７が設けられている。一
方、回路基板１にはビン１７が挿入されるビン穴１８が
形成されており、ブロック突起１５は回路基板１に対し
て係止される構造となっている。The block protrusion 15 has a bracket 16 on its upper part,
This bracket 16 is provided with a bin 17. On the other hand, a bottle hole 18 into which a bottle 17 is inserted is formed in the circuit board 1, and the block protrusion 15 is structured to be locked to the circuit board 1.
１９は取手部材であり、このようなブロック突起１５と
共に、回路基板１に係止される。取手部材１９は操作片
２０と当接片２１とが一体的に形成されており、ブロッ
ク突起１５のビン１７が挿入されることにより回路基板
１に回動可能に取り付けられる。この取手部材１９の操
作片２０は回路基板１の脱却時に指等が引掛けられるも
のである。一方、当接片２１はガイド板３の上端面に当
接するようになっており（第５図（ａ）） 、操作片２
０を引き起こすように取手部材１９を回動させると、当
接片２１はガイド板３の上端面を摺接する。このテコの
原理を応用した摺接により回路基板１が上方に引き上げ
られ、機器本体２とのコネクタ接続から解放されるよう
になっている。逆に回路基板１の挿入時には、この取手
部材１９は図示のように倒れていて、上方に突出しない
構造となっている。なお、ブロック突起１５は回路基板
１に対しては、ねじ２２によって取り付けられるもので
ある（第５図（ｂ））。Reference numeral 19 denotes a handle member, which is secured to the circuit board 1 together with such a block protrusion 15. The handle member 19 has an operation piece 20 and an abutment piece 21 integrally formed, and is rotatably attached to the circuit board 1 by inserting the pin 17 of the block protrusion 15. The operating piece 20 of the handle member 19 is used to hook a finger or the like when the circuit board 1 is removed. On the other hand, the contact piece 21 is adapted to come into contact with the upper end surface of the guide plate 3 (FIG. 5(a)), and the operation piece 2
When the handle member 19 is rotated so as to cause 0, the contact piece 21 comes into sliding contact with the upper end surface of the guide plate 3. The circuit board 1 is pulled upward by the sliding contact applying the lever principle, and is released from the connector connection with the device main body 2. On the contrary, when the circuit board 1 is inserted, the handle member 19 is tilted down as shown in the figure, and has a structure in which it does not protrude upward. Note that the block protrusion 15 is attached to the circuit board 1 with screws 22 (FIG. 5(b)).
以上の構成では取手部材１９への操作によって回路基板
１と機器本体２とのコネクタ接続を解くことができるた
め、回路基板１の引き抜きを円滑且つ簡単に行なうこと
ができる。また、ブロック突起１５はビン１７とねじ２
２とによって回路基板１に回り止め状態で取り付けられ
るため、スプリング部材４の圧接部１２が圧接しても回
動することがなく、接地を良好に行なうことができる。In the above configuration, the connector connection between the circuit board 1 and the device main body 2 can be released by operating the handle member 19, so that the circuit board 1 can be pulled out smoothly and easily. In addition, the block protrusion 15 is connected to the bottle 17 and the screw 2.
Since the spring member 2 is attached to the circuit board 1 in a non-rotating state, even if the pressure contact portion 12 of the spring member 4 is pressed against the spring member 4, the spring member 4 does not rotate, and good grounding can be achieved.
本発明は上記実施例に限定されるものではなく、種々変
更が可能であり、例えばブロック突起１５を省いて、ス
プリング部材４を回路基板の側端面に直接に圧接するよ
うにしても良い。The present invention is not limited to the above-mentioned embodiment, and various modifications are possible. For example, the block protrusion 15 may be omitted and the spring member 4 may be directly pressed against the side end surface of the circuit board.
本発明は以上の通り、左右一対のスプリング部材が回路
基板を圧接して本体との接地を行なうため、回路基板の
挿入だけで本体コネクタ接続を行なうことができ、作業
性が向上する。As described above, according to the present invention, since the pair of left and right spring members press the circuit board to ground the main body, connection to the main body connector can be made simply by inserting the circuit board, improving work efficiency.
しかも、接地面積を広くとれ良好な接地状態を得ること
ができる効果を有する。Moreover, it has the effect of increasing the ground contact area and obtaining a good ground contact condition.
第１図は本発明の一実施例の断面図、第２図はその斜視
図、第３図はスプリング板とガイド板の構造を示す分解
斜視図、第４図は他の実施例の分解斜視図、第５図（ａ
）、（ｂ）はその部分正面図および断面図、第６図は装
着状態の斜視図、第７図は従来例の斜視図である。
１・・・回路基板、２・・・本体、３・・・ガイド板、
４・・・スプリング部材、５・・・基板コネクタ、６・
・・本体コネクタ、１５・・・ブロック突起、１７・・
・ピン、１９・・・増手部材。Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a perspective view thereof, Fig. 3 is an exploded perspective view showing the structure of the spring plate and guide plate, and Fig. 4 is an exploded perspective view of another embodiment. Figure, Figure 5 (a
) and (b) are a partial front view and a sectional view thereof, FIG. 6 is a perspective view of the installed state, and FIG. 7 is a perspective view of a conventional example. 1... Circuit board, 2... Main body, 3... Guide plate,
4... Spring member, 5... Board connector, 6...
...Body connector, 15...Block protrusion, 17...
・Pin, 19...Additional member.
Claims (2)
とコネクタ接続される回路基板と、当該機器本体の両側
内面に設けられ、当該回路基板の当該機器本体内への挿
入を案内する左右一対のガイド板と、 一側が当該機器本体内面に接触すると共に、他側が当該
ガイド板から抜け出て当該回路基板のアース部に圧接す
る導電性のスプリング部材とを備えていることを特徴と
する回路基板の接地装置。1. A circuit board that is inserted into the device body that is the ground side and is connected to the device body with a connector, and a pair of left and right guides that are provided on both inner surfaces of the device body and guide the insertion of the circuit board into the device body. Grounding of a circuit board characterized by comprising: a plate; and a conductive spring member having one side in contact with the inner surface of the main body of the device and the other side coming out of the guide plate and coming into pressure contact with the grounding part of the circuit board. Device.
路基板に単一のねじで係止されており、当該アース部の
端部には、当該アース部から当該回路基板に、当該回路
基板の挿脱用の取手部材の軸支のためのピンが亘されて
いることを特徴とする請求項１記載の回路基板の接地装
置。2. The grounding part is formed in a block shape and is fixed to the circuit board with a single screw, and the end of the grounding part is provided with a screw for inserting and removing the circuit board from the grounding part to the circuit board. 2. The grounding device for a circuit board according to claim 1, further comprising a pin for pivoting a handle member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991790A JPH03224298A (en) | 1990-01-30 | 1990-01-30 | Device for grounding circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991790A JPH03224298A (en) | 1990-01-30 | 1990-01-30 | Device for grounding circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03224298A true JPH03224298A (en) | 1991-10-03 |
Family
ID=12012573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991790A Pending JPH03224298A (en) | 1990-01-30 | 1990-01-30 | Device for grounding circuit board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03224298A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5398822A (en) * | 1992-06-04 | 1995-03-21 | Digital Equipment Corporation | Enclosure for electronic modules |
| US5463532A (en) * | 1994-04-15 | 1995-10-31 | Hubbell Incorporated | Electrical circuit card with EMI shielding strip adapted to make contact with non-outwardly facing surface of card-receiving housing |
| US5467254A (en) * | 1993-11-04 | 1995-11-14 | Synoptics Communications, Inc. | Supportive guide for circuit-card grounding including tracks having staggered protrusions at the proximal end of the tracks |
| EP0720135A2 (en) * | 1994-10-27 | 1996-07-03 | Seiko Epson Corporation | Information processing apparatus |
| US6172880B1 (en) | 1998-07-31 | 2001-01-09 | Hubbell Incorporated | Faceplate for an electronic circuit card for reducing EMI emissions between circuit cards inserted in a circuit card housing |
-
1990
- 1990-01-30 JP JP1991790A patent/JPH03224298A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5398822A (en) * | 1992-06-04 | 1995-03-21 | Digital Equipment Corporation | Enclosure for electronic modules |
| US5535099A (en) * | 1992-06-04 | 1996-07-09 | Digital Equipment Corporation | Enclosure for electronic modules |
| US5638259A (en) * | 1992-06-04 | 1997-06-10 | Digital Equipment Corporation | Enclosure for electronic modules |
| US5467254A (en) * | 1993-11-04 | 1995-11-14 | Synoptics Communications, Inc. | Supportive guide for circuit-card grounding including tracks having staggered protrusions at the proximal end of the tracks |
| US5463532A (en) * | 1994-04-15 | 1995-10-31 | Hubbell Incorporated | Electrical circuit card with EMI shielding strip adapted to make contact with non-outwardly facing surface of card-receiving housing |
| EP0720135A2 (en) * | 1994-10-27 | 1996-07-03 | Seiko Epson Corporation | Information processing apparatus |
| EP0720135B1 (en) * | 1994-10-27 | 2005-08-31 | Seiko Epson Corporation | Information processing apparatus |
| US6172880B1 (en) | 1998-07-31 | 2001-01-09 | Hubbell Incorporated | Faceplate for an electronic circuit card for reducing EMI emissions between circuit cards inserted in a circuit card housing |
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