【０００１】[0001]
【産業上の利用分野】本発明は、複数のプリント配線基
板を電気的に接続するための接続構造に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for electrically connecting a plurality of printed wiring boards.
【０００２】[0002]
【従来の技術】図６に示されるような表面のカバーフィ
ルム抜き部１１，１２内に金メッキされた接続パターン
１３，１４を有するベースプリント配線板１０に、図７
に示される裏側の面にカバーフィルムの抜き部２１，３
１と、露出される金メッキされた接続パターン２２，３
２を有するフレキシブルプリント配線板２０，３０を、
接続パターン１３と２２、１４と３２を位置合わせして
対向させて、図９に示すように、弾性ゴム４０と、押さ
え板５０とにより圧力を加え、電気的な導通を得る場
合、従来は、本体等の固定部６０に、設けられた第１〜
第４の位置決めピン６１〜６４により、２枚のフレキシ
ブルプリント配線板２０，３０とベースプリント配線板
１０を位置決めし、圧接される第１の接続パターン１３
と接続パターン２２、及び第２の接続パターン１４と接
続パターン３２の、それぞれ対向するパターン間の位置
ずれを少なくし、１ピッチずれた隣り合う接続パターン
との導通する不良をなくし、圧接導通信頼性を得てい
た。この場合、ベースプリント配線板１０に設けた２枚
のフレキシブルプリント配線板２０，３０位置決め用の
穴１５〜１８のうち、上記第１〜第４の位置決めピン６
１〜６４のピン外径に対し高精度に穴孔けされるのは、
通常、第１の位置決め穴１５の丸穴と、第２の位置決め
穴１６（但しこの穴１６は、第１の位置決め穴１５に対
して結ばれる線方向に対しては遊びをもち、他の方向は
角度ブレ防止をする長穴）のみであり、第３の位置決め
穴１７は、他の位置決め穴との間ではめこみ許容のため
のガタを必要とするため、第３の位置決めピン６３に対
しほぼひとまわり大きな径の位置決め穴となり、同様に
第４の位置決め穴１８も第３の位置決め穴１７と同じ理
由でひとまわり大きな径の穴として設けられていた。2. Description of the Related Art As shown in FIG. 6, a base printed wiring board 10 having gold-plated connection patterns 13 and 14 in cover film removal portions 11 and 12 on the surface thereof is used.
The cover film cutouts 21, 3 on the back surface shown in FIG.
1 and exposed gold-plated connection patterns 22, 3
Flexible printed wiring boards 20 and 30 having
When the connection patterns 13 and 22, 14 and 32 are aligned and opposed to each other and pressure is applied by the elastic rubber 40 and the pressing plate 50 to obtain electrical conduction, as shown in FIG. The fixed parts 60 such as the main body
The first connection pattern 13 that positions and press-contacts the two flexible printed wiring boards 20 and 30 and the base printed wiring board 10 with the fourth positioning pins 61 to 64.
And the connection pattern 22, and the second connection pattern 14 and the connection pattern 32, the misalignment between the patterns facing each other is reduced, the defect of conduction between the adjacent connection patterns that are offset by one pitch is eliminated, and the pressure conduction reliability is improved. Was getting. In this case, the first to fourth positioning pins 6 among the two positioning holes 15 to 18 for positioning the flexible printed wiring boards 20 and 30 provided on the base printed wiring board 10 are used.
The holes that are drilled with high accuracy for the pin outer diameters of 1 to 64 are
Usually, the round hole of the first positioning hole 15 and the second positioning hole 16 (however, this hole 16 has a play in the direction of the line connected to the first positioning hole 15 and the other direction). Is a long hole for preventing angular blurring), and the third positioning hole 17 requires a backlash for allowing engagement with other positioning holes. The positioning hole has a slightly larger diameter, and similarly, the fourth positioning hole 18 is also provided as a hole having a larger diameter for the same reason as the third positioning hole 17.
【０００３】[0003]
【発明が解決しようとする課題】上記により、ベースプ
リント配線板１０と、第１のフレキシブルプリント配線
板２０との位置決めは、第１，第２の位置決め穴１５，
１６とフレキシブルプリント配線板２０の位置決めピン
６１の外径に対して高精度にあけられた丸穴２３と長穴
２４によって位置決めされ、接続パターン間の位置ずれ
も少なく抑えることが可能であり、隣り合うパターン間
での誤導通を防ぐことができた。しかし、ベースプリン
ト配線板１０と第２のフレキシブルプリント配線板３０
との位置決めは、第３〜４の位置決め穴１７，１８が、
位置決めピン６３，６４に対し、ひとまわり大きな外径
の丸穴となっているため、ベースプリント配線板１０は
本体固定部６０に対して、正確な位置決めができないた
め、第２のフレキシブルプリント配線板３０の丸穴３３
と、長穴３４に対しても高精度に位置決めすることが不
可能であった。そのため、接続パターン間の１ピッチず
れの導通不良を起しやすく、信頼性低下をまねいてい
た。又、接続信頼性を高めるため、図６に示したように
一方の、接続パターンピッチＰ１に対して、他方のＰ２
を、位置決めピンとの位置ずれ分を見込んで広くとるな
どの導通不良対策を必要としていた。As described above, the positioning of the base printed wiring board 10 and the first flexible printed wiring board 20 is performed by the first and second positioning holes 15,
16 and the positioning pin 61 of the flexible printed wiring board 20 are positioned with respect to the outer diameter of the positioning pin 61 by the round hole 23 and the elongated hole 24 with high accuracy, and the positional deviation between the connection patterns can be suppressed to a small extent. It was possible to prevent erroneous conduction between matching patterns. However, the base printed wiring board 10 and the second flexible printed wiring board 30
The positioning of the 3rd to 4th positioning holes 17 and 18
Since the base printed wiring board 10 cannot be accurately positioned with respect to the main body fixing portion 60 because the positioning pins 63 and 64 are round holes having a slightly larger outer diameter, the second flexible printed wiring board is not accurately positioned. 30 round holes 33
Therefore, it is impossible to position the elongated hole 34 with high accuracy. For this reason, a conduction defect of one pitch shift between the connection patterns is likely to occur, leading to a decrease in reliability. Further, in order to improve the connection reliability, as shown in FIG. 6, one of the connection pattern pitches P1 and the other P2 is connected.
However, it is necessary to take measures against the conduction failure such as widening in consideration of the positional deviation from the positioning pin.
【０００４】[0004]
【課題を解決する手段及び作用】本発明者は、上記の信
頼性低下や、導通不良対策の無駄を解消するために、上
記特許請求の範囲に記載した本発明を完成した。The present inventor has completed the present invention set forth in the appended claims in order to eliminate the above-mentioned deterioration of reliability and waste of countermeasures against conduction defects.
【０００５】本発明によれば、ベース（主）プリント配
線板と、複数のフレキシブルプリント配線板の圧接導通
部の位置決めを精度よく行うことができるため、圧接端
子パターン間のピッチ幅を狭くすることが可能となっ
て、例えば本発明を適用するカメラ等の小型精密機器等
では、狭いスペースでの圧接導通形成に非常に有利であ
る。According to the present invention, the base (main) printed wiring board and the pressure contact conducting portions of the plurality of flexible printed wiring boards can be accurately positioned, so that the pitch width between the pressure contact terminal patterns is narrowed. Therefore, in a small precision device such as a camera to which the present invention is applied, it is very advantageous for forming pressure contact conduction in a narrow space.
【０００６】[0006]
【実施例】図１〜４は本発明の実施例を示し、図１は、
ベースプリント配線板１の正面外形パターン図、図２は
２枚のフレキシブルプリント配線板２，３の正面外形
図、図３は、上記図１，図２の各配線板を重ねた状態の
正面図、図４は、圧接状態の断面図である。図５は、本
発明で使用した弾性ゴムの断面図である。1 to 4 show an embodiment of the present invention, and FIG.
FIG. 2 is a front external view of the base printed wiring board 1, FIG. 2 is a front external view of two flexible printed wiring boards 2 and 3, and FIG. 3 is a front view of the wiring boards of FIGS. FIG. 4 is a cross-sectional view in a pressure contact state. FIG. 5 is a sectional view of the elastic rubber used in the present invention.
【０００７】図１〜４で、１はベースプリント配線板で
あり、このベースプリント配線板１が組付される本体９
上の一対の第１、第２位置決めピン９Ａ，９Ｂに嵌合し
て位置決めされる位置決め穴１Ａ，１Ｂが設けられてい
る。ここで位置決め穴１Ａは、第１の位置決めピン９Ａ
の外径に対して精度が高い丸穴であり、１Ｂはベースプ
リント配線板１の角度ずれ防止用の長穴（すなわち１
Ａ，１Ｂの中心を結んだ線に対して平行な長穴）であ
る。この長穴１Ｂの形状は、組付本体９上の一対のピン
９Ａ，９Ｂ間の寸法に数十μ程度のバラツキが必要とな
るためである。パターン１Ｃ，１Ｄは、表面が金メッキ
された圧接用パターンであり、パターン１Ｃ，１Ｄとも
に等ピッチで設けられている。１Ｅ，１Ｆはカバーフィ
ルム抜き穴で、この囲まれた範囲内においてパターン１
Ｃ，１Ｄが金メッキされており、電気的導通が行われ
る。1 to 4, reference numeral 1 denotes a base printed wiring board, and a main body 9 to which the base printed wiring board 1 is assembled.
Positioning holes 1A and 1B for fitting and positioning the upper pair of first and second positioning pins 9A and 9B are provided. Here, the positioning hole 1A is the first positioning pin 9A.
1B is a long hole for preventing the angular displacement of the base printed wiring board 1 (that is, 1).
It is a long hole parallel to the line connecting the centers of A and 1B. This is because the shape of the elongated hole 1B requires that the dimension between the pair of pins 9A and 9B on the assembly main body 9 has a variation of about several tens of μ. The patterns 1C and 1D are pressure-bonding patterns whose surfaces are plated with gold, and both patterns 1C and 1D are provided at equal pitches. 1E and 1F are cover film punching holes, and the pattern 1 is formed within the enclosed area.
C and 1D are plated with gold, and electrical conduction is performed.
【０００８】２は、第１のフレキシブルプリント配線板
であり、上記ベースプリント配線板１と同様に、一対の
第１の位置決め穴２Ａ，２Ｂ、図示裏面に第１パターン
２Ｃ、第１カバーフィルム抜き穴２Ｄが設けられてい
る。Reference numeral 2 denotes a first flexible printed wiring board, which is similar to the base printed wiring board 1 and has a pair of first positioning holes 2A and 2B, a first pattern 2C on the back surface in the drawing, and a first cover film removed. A hole 2D is provided.
【０００９】３は、第２のフレキシブルプリント配線板
であり、同じく一対の第２の位置決め穴３Ａ，３Ｂ、図
示裏面に第２パターン３Ｃ、第２カバーフィルム抜き穴
３Ｄが設けられている４は圧接用、弾性ゴム、５はビス
締め等で弾性ゴム４を通じて、ベースプリント配線板１
と第１、第２フレキシブルプリント配線板２，３との圧
接力を与えるコの字状に曲げられた押さえ板である。Reference numeral 3 is a second flexible printed wiring board, and similarly, a pair of second positioning holes 3A and 3B, a second pattern 3C on the back surface in the drawing, and a second cover film punching hole 3D are provided at 4. For pressure contact, elastic rubber, 5 is screwed or the like through elastic rubber 4, and base printed wiring board 1
And a pressing plate bent in a U-shape for giving a pressure contact force with the first and second flexible printed wiring boards 2 and 3.
【００１０】上記のような構成部品を用いて、図３、図
４のようにベースプリント配線板１、第１フレキシブル
プリント配線板２、第２フレキシブルプリント配線板３
のそれぞれの位置決め穴を、組付本体９の一対のピン９
Ａ，９Ｂを共通の位置決め用ピンとして挿入し重ねあわ
せる。この時ベースプリント配線板１のパターン１Ｃと
第１フレキシブルプリント配線板２のパターン２Ｃが対
向して圧接される第１の圧接部となり、ベースプリント
配線板１のパターン１Ｄと第２フレキシブルプリント配
線板３のパターン３Ｃが対向して圧接される第２の圧接
部となる。Using the above-mentioned components, as shown in FIGS. 3 and 4, the base printed wiring board 1, the first flexible printed wiring board 2, and the second flexible printed wiring board 3 are used.
Each positioning hole of the pair of pins 9 of the assembly body 9
Insert A and 9B as common positioning pins and overlap. At this time, the pattern 1C of the base printed wiring board 1 and the pattern 2C of the first flexible printed wiring board 2 serve as a first pressure contact portion which is pressed against each other, and the pattern 1D of the base printed wiring board 1 and the second flexible printed wiring board. The pattern 3C of No. 3 is a second press-contact portion that is opposed and press-contacted.
【００１１】そして、第１、第２の圧接部の向かい合わ
せのパターンにそれぞれのカバーフィルム抜き穴部より
も大きな範囲で圧接力を与えることが可能な大きさを有
する弾性ゴム４を３枚の配線板上に載せ、押さえ板５に
よって圧接力を加えてビス等により保持する。Then, three elastic rubbers 4 each having a size capable of giving a pressure contact force to the pattern of the first and second pressure contact portions facing each other in a range larger than each cover film punched hole portion are provided. It is placed on a wiring board, and a pressing force is applied by the pressing plate 5 to hold it with screws or the like.
【００１２】これによりベースプリント配線板１と第１
フレキシブルプリント配線板２のパターン間、及びベー
スプリント配線板１と第２フレキシブルプリント配線板
３のパターン間が電気的に導通される。その状態は図４
の断面で示した。As a result, the base printed wiring board 1 and the first
Electrical connection is established between the patterns of the flexible printed wiring board 2 and between the patterns of the base printed wiring board 1 and the second flexible printed wiring board 3. The state is shown in Figure 4.
The cross section is shown.
【００１３】なお、この場合、ベースプリント配線板１
に対して、一対のピン９Ａ，９Ｂを第１、第２のフレキ
シブルプリント配線板２，３の共通の位置決め用ピンと
して重ね合わせるため、図４のように、第２フレキシブ
ルプリント配線板３の位置決め部３Ｅが、ベースプリン
ト配線板１と第１フレキシブルプリント配線板２の第１
の圧接部でフレキシブルプリント配線板１枚分、余分に
重ねられるため積み重ね厚さに段差Ｘが生じてしまう。
そこでこの２カ所の圧接部の圧接力のバラツキをなくす
ため、弾性ゴム４の配線板側圧接面に圧接力がほぼ均等
となるように、第１圧接部に対する圧接面４ａ、第２圧
接部に対する圧接面４ｂを設け、圧接面４ａと４ｂの間
は段差４ｃが設けられる。この段差４ｃにより２カ所の
圧接接続部に弾性ゴム４による圧接力がほぼ均等に加え
られる。In this case, the base printed wiring board 1
On the other hand, since the pair of pins 9A and 9B are overlapped as common positioning pins for the first and second flexible printed wiring boards 2 and 3, the second flexible printed wiring board 3 is positioned as shown in FIG. The portion 3E is the first of the base printed wiring board 1 and the first flexible printed wiring board 2.
Since one flexible printed wiring board is additionally stacked at the pressure contact portion, a step X occurs in the stacking thickness.
Therefore, in order to eliminate the variation in the pressure contact force at the two pressure contact portions, the pressure contact surface 4a with respect to the first pressure contact portion and the second pressure contact portion with respect to the wiring board side pressure contact surface of the elastic rubber 4 are made substantially equal. A pressure contact surface 4b is provided, and a step 4c is provided between the pressure contact surfaces 4a and 4b. Due to this step 4c, the pressure contact force of the elastic rubber 4 is applied almost uniformly to the two pressure contact connection portions.
【００１４】このように３枚のプリント配線板１〜３
を、組付本体９の１対の位置決め用ピン９Ａ，９Ｂに対
して共通に位置決めすることにより、ベースプリント配
線板１と、第１、第２のフレキシブルプリント配線板
２，３、それぞれとの位置決めが高精度で行うことが可
能となり、それぞれ第１、第２の圧接部での隣り合うパ
ターン間での位置ずれによる誤導通の接触不良がなくな
り、高い信頼性の圧接導通が行えるようになった。Thus, the three printed wiring boards 1 to 3 are
Are commonly positioned with respect to the pair of positioning pins 9A and 9B of the assembly main body 9 so that the base printed wiring board 1 and the first and second flexible printed wiring boards 2 and 3, respectively. Positioning can be performed with high accuracy, and contact failure due to erroneous conduction due to misalignment between adjacent patterns at the first and second pressure contact portions is eliminated, and highly reliable pressure contact conduction can be performed. It was
【００１５】[0015]
【発明の効果】本発明によれば、３枚のプリント基板の
位置決め穴に対し組付本体の一対のピンを共通の位置決
め用ピンとして使用することにより、２組のプリント配
線板の圧接導通されるパターン間で生ずる位置ズレによ
る導通不良を少なくすることが可能となり、これにより
信頼性の高い圧接接続ができる。又、２枚のプリント配
線板間のパターンずれが少ないため、パターンピッチ幅
を狭くすることが可能となり、圧接パターン数が多い接
続時、配線板上の圧接部必要面積の削減にも効果的であ
る。又、位置決めピンを複数の配線板との位置決めとし
て共通化したことにより、従来３枚のプリント配線板で
２組の圧接導通部をそれぞれ異なる一対の位置決めピン
により位置決めしていた時より、位置決め用に必要なピ
ン設置スペースも削減でき、より有効なプリント配線板
上のパターン配線が可能となる。According to the present invention, by using the pair of pins of the assembly main body as the common positioning pins for the positioning holes of the three printed circuit boards, the two sets of the printed wiring boards are brought into pressure contact with each other. It is possible to reduce the conduction failure due to the positional deviation between the patterns, which enables highly reliable pressure contact connection. Further, since the pattern displacement between the two printed wiring boards is small, it is possible to narrow the pattern pitch width, and it is also effective in reducing the area required for the pressure contact portion on the wiring board when connecting with a large number of pressure contact patterns. is there. Further, since the positioning pin is commonly used for positioning with a plurality of wiring boards, it is possible to perform positioning from the time when two pairs of pressure contact conducting portions are conventionally positioned by a pair of different positioning pins on three printed wiring boards. The pin installation space required for this can be reduced, and more effective pattern wiring on the printed wiring board becomes possible.
【図１】図１は、本発明のベースプリント配線板のパタ
ーンを含む外形図。FIG. 1 is an outline view including a pattern of a base printed wiring board of the present invention.
【図２】図２は、本発明の第１、第２のフレキシブルプ
リント配線板のパターン外形図。FIG. 2 is a pattern outline drawing of the first and second flexible printed wiring boards of the present invention.
【図３】図３は、ベースプリント配線板と第１、第２の
フレキシブルプリント配線板を重ね合わせた正面図。FIG. 3 is a front view in which a base printed wiring board and first and second flexible printed wiring boards are superposed on each other.
【図４】図４は、図３の断面図。FIG. 4 is a cross-sectional view of FIG.
【図５】図５は、本発明に使用する弾性ゴムの断面図。FIG. 5 is a cross-sectional view of elastic rubber used in the present invention.
【図６】図６は、従来のベースプリント配線板のパター
ン外形図。FIG. 6 is a pattern outline drawing of a conventional base printed wiring board.
【図７】図７は、従来の第１、第２のフレキシブルプリ
ント配線板のパターン外形図。FIG. 7 is a pattern outline drawing of conventional first and second flexible printed wiring boards.
【図８】図８は、ベースプリント配線板と第１、第２の
フレキシブルプリント配線板を重ね合わせた正面図。FIG. 8 is a front view in which a base printed wiring board and first and second flexible printed wiring boards are superposed on each other.
【図９】図９は、図８の断面図。9 is a sectional view of FIG.
１…ベースプリント配線板 ２…第１のフレキシ
ブルプリント配線板 ３…第２のフレキシブルプリント配線板 ４…弾性ゴム ５…押さえ板DESCRIPTION OF SYMBOLS 1 ... Base printed wiring board 2 ... 1st flexible printed wiring board 3 ... 2nd flexible printed wiring board 4 ... Elastic rubber 5 ... Pressing board
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18782591AJPH0537112A (en) | 1991-07-26 | 1991-07-26 | Printed wiring board |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18782591AJPH0537112A (en) | 1991-07-26 | 1991-07-26 | Printed wiring board |
| Publication Number | Publication Date |
|---|---|
| JPH0537112Atrue JPH0537112A (en) | 1993-02-12 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18782591APendingJPH0537112A (en) | 1991-07-26 | 1991-07-26 | Printed wiring board |
| Country | Link |
|---|---|
| JP (1) | JPH0537112A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011102152A1 (en)* | 2010-02-17 | 2011-08-25 | シャープ株式会社 | Substrate set, electronic device, and method for manufacturing substrate set |
| CN102593626A (en)* | 2011-01-14 | 2012-07-18 | 富士康(昆山)电脑接插件有限公司 | Flexible flat cable assembly and assembling method thereof |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011102152A1 (en)* | 2010-02-17 | 2011-08-25 | シャープ株式会社 | Substrate set, electronic device, and method for manufacturing substrate set |
| CN102593626A (en)* | 2011-01-14 | 2012-07-18 | 富士康(昆山)电脑接插件有限公司 | Flexible flat cable assembly and assembling method thereof |
| Publication | Publication Date | Title |
|---|---|---|
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