JPH0715105A - Flexible printed board and its connection method - Google Patents
Flexible printed board and its connection methodInfo
- Publication number
- JPH0715105A JPH0715105A JP15492493A JP15492493A JPH0715105A JP H0715105 A JPH0715105 A JP H0715105A JP 15492493 A JP15492493 A JP 15492493A JP 15492493 A JP15492493 A JP 15492493A JP H0715105 A JPH0715105 A JP H0715105A
- Authority
- JP
- Japan
- Prior art keywords
- printed circuit
- circuit board
- flexible printed
- rigid printed
- rigid
- 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
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/03—Use of materials for the substrate
- H05K1/0393—Flexible materials
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/36—Assembling printed circuits with other printed circuits
- H05K3/361—Assembling flexible printed circuits with other printed circuits
- H05K3/363—Assembling flexible printed circuits with other printed circuits by soldering
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、リジッドプリント基板
とフレキシブルプリント基板とを接続してなるフレキシ
ブルプリント基板及びその接続方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible printed circuit board in which a rigid printed circuit board and a flexible printed circuit board are connected to each other, and a connecting method thereof.
【０００２】[0002]
【従来の技術】一般に、リジッドプリント基板Ａにフレ
キシブルプリント基板Ｂを接続する場合、図９及び図１
０に示すように、はんだ付けされた接続部Ｃの補強とし
て、両面粘着テープや熱圧着シートなどの補強部材Ｄが
使われている。2. Description of the Related Art Generally, when a flexible printed board B is connected to a rigid printed board A, as shown in FIGS.
As shown in FIG. 0, a reinforcing member D such as a double-sided adhesive tape or a thermocompression bonding sheet is used to reinforce the soldered connection portion C.
【０００３】しかるに、近時、パソコンやワープロの小
形化・薄形化に伴い、一対のリジッドプリント基板を一
枚のフレキシブルプリント基板ではんだ接続して、筐体
内に組込み、３次元構造とすることが行われている。し
かしながら、この場合、リジッドプリント基板が重い
と、両面粘着テープや熱圧着シートの補強だけでは、製
品の製造工程におけるハンドリングでの外力、特にねじ
り方向に外力が作用した場合、リジッドプリント基板と
フレキシブルプリント基板との接続部に剥がれが生じる
可能性があり、継手強度の向上が望まれている。However, in recent years, along with the miniaturization and thinning of personal computers and word processors, a pair of rigid printed circuit boards are soldered and connected to one flexible printed circuit board to be incorporated in a housing to form a three-dimensional structure. Is being done. However, in this case, when the rigid printed circuit board is heavy, the reinforcement of the double-sided adhesive tape or the thermocompression bonding sheet alone causes the rigid printed circuit board and the flexible printed circuit board to flex when the external force in the handling in the manufacturing process of the product, particularly the external force in the twisting direction acts. There is a possibility that peeling may occur at the connection with the substrate, and improvement in joint strength is desired.
【０００４】[0004]
【発明が解決しようとする課題】以上のように、従来の
フレキシブルプリント基板及びその接続方法では、信頼
性の高い継手強度を得ることは困難であった。この発明
は、上記事情を勘案してなされたもので、上記欠点を解
決することのできるフレキシブルプリント基板及びその
接続方法を提供することを目的とする。As described above, it has been difficult to obtain a highly reliable joint strength with the conventional flexible printed circuit board and its connecting method. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a flexible printed circuit board and a connecting method thereof that can solve the above-mentioned drawbacks.
【０００５】[0005]
【課題を解決するための手段】本発明は、リジッドプリ
ント基板にはんだ付けにより接続されるフレキシブルプ
リント基板において、可撓性部材からなり一側縁部から
他側縁部にかけて配線パターンが形成された本体部と、
上記本体部の一側縁部と他側縁部のうち少なくとも一方
に形成され上記リジッドプリント基板に接続されるはん
だ接続部と、このはんだ接続部の両端部にて上記リジッ
ドプリント基板に対して反対方向に延設された舌片状の
補強部とを具備し、これによりリジッドプリント基板に
対して接続するようにしたものである。According to the present invention, in a flexible printed circuit board connected to a rigid printed circuit board by soldering, a wiring pattern is formed from one side edge portion to the other side edge portion made of a flexible member. Body part,
A solder connection portion formed on at least one of the one side edge portion and the other side edge portion of the main body portion and connected to the rigid printed circuit board, and opposite to the rigid printed circuit board at both ends of the solder connection portion. And a tongue-shaped reinforcing portion extending in the direction, so that it is connected to the rigid printed circuit board.
【０００６】[0006]
【作用】本発明は、補強部によりフレキシブルプリント
基板とリジッドプリント基板との継手強度が増大するの
で、取扱いの自由度が増す。また、接続部を強化するた
めの副資材が不必要になるため、コストダウンを図るこ
とができる。さらに、フレキシブルプリント基板とリジ
ッドプリント基板と間の電気的接続の信頼性も向上する
ことにより、歩留りも改善することが可能となる。According to the present invention, since the joint strength between the flexible printed circuit board and the rigid printed circuit board is increased by the reinforcing portion, the degree of freedom in handling is increased. In addition, since a secondary material for strengthening the connecting portion is unnecessary, it is possible to reduce the cost. Further, the reliability of the electrical connection between the flexible printed circuit board and the rigid printed circuit board is improved, so that the yield can be improved.
【０００７】[0007]
【実施例】以下、本発明の一実施例を図面を参照して詳
述する。図１は、この実施例のフレキシブルプリント基
板１を示している。このプリント基板１は、長方形をな
し、可撓性の例えばポリイミドなどの合成樹脂薄板部材
からなり図示せぬ配線パターンが形成された本体部２
と、その互いに対向する長辺側の端縁部に設けられたは
んだ接続部３，３と、その互いに対向する短辺側に設け
られた補強部４…とからなっている。しかして、補強部
４…は、本体部２の四隅に形成された舌片状のものであ
って、本体部２の短辺側中央に設けられた長方形をなす
欠落部５，５と、この欠落部５，５の基底部両側に設け
られた切欠部６…とにより形成されている。そして、補
強部４…は、切欠部６…により図１の破線部分Ｆ…を折
り目として図２の矢印７方向に折り曲げられるようにな
っている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a flexible printed circuit board 1 of this embodiment. The printed circuit board 1 has a rectangular shape and is made of a flexible synthetic resin thin plate member such as polyimide and has a wiring pattern (not shown) formed thereon.
, And solder connecting portions 3 and 3 provided on the long side edges facing each other, and reinforcing portions 4 provided on the short side sides facing each other. The reinforcing portions 4 ... Are tongue-shaped members formed at the four corners of the main body 2, and are rectangular cutouts 5 and 5 provided at the center of the short side of the main body 2. It is formed by notches 6 provided on both sides of the base of the cutouts 5, 5. .. can be bent in the direction of arrow 7 in FIG. 2 with the notches 6 ...
【０００８】つぎに、上記構成のフレキシブルプリント
基板１を用いてこの発明のプリント基板の接続方法につ
いて述べる。この実施例のプリント基板の接続方法は、
フレキシブルプリント基板１をそのはんだ接続部３，３
を介してリジッドプリント基板８，８の配線パターン
９，９に接続するはんだ付け工程（図３）と、このはん
だ付け工程後にフレキシブルプリント基板１の補強部４
…を矢印７方向に折り曲げリジッドプリント基板８，８
に密着させる折り曲げ工程（図４）と、この折り曲げ工
程後に折り曲げた補強部４…とリジッドプリント基板
８，８とを接着剤Ｓにより接着し補強部４…をリジッド
プリント基板８，８に固定する接着工程（図５）とから
なっている。Next, a method of connecting the printed circuit boards of the present invention using the flexible printed circuit board 1 having the above structure will be described. The printed circuit board connection method of this embodiment is
The flexible printed circuit board 1 has its solder connection parts 3, 3
Soldering step (FIG. 3) for connecting to the wiring patterns 9, 9 of the rigid printed circuit boards 8, 8 through the reinforcing portion 4 of the flexible printed circuit board 1 after this soldering step.
Is bent in the direction of arrow 7 to form a rigid printed circuit board 8, 8
4 and the rigid printed boards 8 and 8 which are bent after this bending step are adhered to each other with an adhesive S to fix the reinforced portions 4 to the rigid printed boards 8 and 8. It consists of a bonding process (Fig. 5).
【０００９】このようなフレキシブルプリント基板１
は、以下のような顕著な作用効果を奏する。すなわち、
補強部４…によりフレキシブルプリント基板１とリジッ
ドプリント基板８，８との継手強度が増大するので、フ
レキシブルプリント基板１とリジッドプリント基板８，
８の取扱いの自由度が増す。すなわち、これらのフレキ
シブルプリント基板１とリジッドプリント基板８，８を
例えばパソコンやワープロなどの筐体に組み込む場合、
図６に示すように、ねじり方向の外力が作用しても接続
部３，３が破壊する虞がなくなる。また、接続部３，３
を強化するための副資材が不必要になるため、コストダ
ウンを図ることができる。さらに、フレキシブルプリン
ト基板１とリジッドプリント基板８，８と間の電気的接
続の信頼性も向上することにより、歩留りも改善するこ
とが可能となる。Such a flexible printed circuit board 1
Has the following remarkable effects. That is,
Since the joint strength between the flexible printed circuit board 1 and the rigid printed circuit boards 8, 8 is increased by the reinforcing portions 4, ..., The flexible printed circuit board 1, the rigid printed circuit board 8,
The degree of freedom in handling 8 is increased. That is, when the flexible printed circuit board 1 and the rigid printed circuit boards 8 and 8 are incorporated into a case such as a personal computer or a word processor,
As shown in FIG. 6, even if an external force in the twisting direction is applied, there is no possibility that the connecting portions 3 and 3 will be broken. Also, the connection parts 3, 3
Since auxiliary materials for strengthening are unnecessary, cost can be reduced. Further, the reliability of the electrical connection between the flexible printed circuit board 1 and the rigid printed circuit boards 8 and 8 is improved, so that the yield can be improved.
【００１０】なお、上記実施例においては、一対のリジ
ッドプリント基板８，８間にフレキシブルプリント基板
１を介設した場合を例示しているが、図７に示すよう
に、フレキシブルプリント基板１の一端部をリジッドプ
リント基板８に接続し、他端部を例えばコネクタなどの
電子部品９に接続する場合にもこの発明を適用すること
ができる。Although the flexible printed circuit board 1 is provided between the pair of rigid printed circuit boards 8 and 8 in the above embodiment, one end of the flexible printed circuit board 1 is provided as shown in FIG. The present invention can also be applied to a case where a part is connected to the rigid printed circuit board 8 and the other end is connected to an electronic component 9 such as a connector.
【００１１】さらに、上記実施例において、継手強度を
さらに増強するために、図８に示すように、補強部４…
を介装部材１０を介してボルト１１などによりねじ締め
してもよい。Further, in the above embodiment, in order to further enhance the joint strength, as shown in FIG.
It may be screwed with a bolt 11 or the like via the interposition member 10.
【００１２】[0012]
【発明の効果】本発明は、補強部によりフレキシブルプ
リント基板とリジッドプリント基板との継手強度が増大
するので、フレキシブルプリント基板とリジッドプリン
ト基板の取扱いの自由度が増す。また、接続部を強化す
るための副資材が不必要になるため、コストダウンを図
ることができる。さらに、フレキシブルプリント基板と
リジッドプリント基板と間の電気的接続の信頼性も向上
することにより、歩留りも改善することが可能となる。According to the present invention, since the joint strength between the flexible printed circuit board and the rigid printed circuit board is increased by the reinforcing portion, the flexibility of handling the flexible printed circuit board and the rigid printed circuit board is increased. In addition, since a secondary material for strengthening the connecting portion is unnecessary, it is possible to reduce the cost. Further, the reliability of the electrical connection between the flexible printed circuit board and the rigid printed circuit board is improved, so that the yield can be improved.
【図１】本発明の一実施例のフレキシブルプリント基板
の平面図である。FIG. 1 is a plan view of a flexible printed circuit board according to an embodiment of the present invention.
【図２】本発明の一実施例のフレキシブルプリント基板
の要部拡大説明図である。FIG. 2 is an enlarged explanatory view of a main part of a flexible printed circuit board according to an embodiment of the present invention.
【図３】本発明の一実施例のフレキシブルプリント基板
の接続方法のはんだ付け工程の説明図である。FIG. 3 is an explanatory diagram of a soldering step of the method for connecting a flexible printed circuit board according to an embodiment of the present invention.
【図４】本発明の一実施例のフレキシブルプリント基板
の折り曲げ工程の説明図である。FIG. 4 is an explanatory diagram of a bending process of the flexible printed circuit board according to the embodiment of the present invention.
【図５】本発明の一実施例のフレキシブルプリント基板
の接着工程の説明図である。FIG. 5 is an explanatory diagram of a process for adhering a flexible printed circuit board according to an embodiment of the present invention.
【図６】本発明の一実施例のフレキシブルプリント基板
の作用説明図である。FIG. 6 is an operation explanatory view of the flexible printed circuit board according to the embodiment of the present invention.
【図７】本発明の一実施例のフレキシブルプリント基板
の接続方法の変形例を示す説明図である。FIG. 7 is an explanatory diagram showing a modified example of the method for connecting the flexible printed circuit boards according to the embodiment of the present invention.
【図８】本発明の一実施例のフレキシブルプリント基板
の接続方法の変形例を示す説明図である。FIG. 8 is an explanatory diagram showing a modification of the method of connecting the flexible printed circuit boards according to the embodiment of the present invention.
【図９】従来のフレキシブルプリント基板の斜視図であ
る。FIG. 9 is a perspective view of a conventional flexible printed circuit board.
【図１０】従来のフレキシブルプリント基板の要部断面
図である。FIG. 10 is a cross-sectional view of a main part of a conventional flexible printed circuit board.
１：フレキシブルプリント基板，２：本体部，３：接続
部，４：補強部，８：リジッドプリント基板。1: Flexible printed circuit board, 2: Main body part, 3: Connection part, 4: Reinforcing part, 8: Rigid printed circuit board.
Claims (2)
接続されるフレキシブルプリント基板において、可撓性
部材からなり一側縁部から他側縁部にかけて配線パター
ンが形成された本体部と、上記本体部の一側縁部と他側
縁部のうち少なくとも一方に形成され上記リジッドプリ
ント基板に接続されるはんだ接続部と、このはんだ接続
部の両端部にて上記リジッドプリント基板に対して反対
方向に延設された舌片状の補強部とを具備し、上記補強
部は折曲自在に設けられ且つ上記はんだ接続部に接続さ
れたリジッドプリント基板に固定されることにより上記
リジッドプリント基板との接続を補強することを特徴と
するフレキシブルプリント基板。1. A flexible printed circuit board, which is connected to a rigid printed circuit board by soldering, comprising a flexible member, a main body portion having a wiring pattern formed from one side edge portion to the other side edge portion, and the main body portion. Solder connection portions formed on at least one of the one side edge portion and the other side edge portion and connected to the rigid printed circuit board, and extending in opposite directions to the rigid printed circuit board at both ends of the solder connection portion. A tongue-shaped reinforcing portion, the reinforcing portion being provided in a bendable manner and being fixed to the rigid printed circuit board connected to the solder connection section to reinforce the connection with the rigid printed circuit board. A flexible printed circuit board characterized by being.
にかけて配線パターンが形成された本体部と、上記本体
部の一側縁部と他側縁部のうち少なくとも一方に形成さ
れたはんだ接続部と、このはんだ接続部の両端部に設け
られた舌片状の補強部とを具備するフレキシブルプリン
ト基板をリジッドプリント基板に接続するフレキシブル
プリント基板の接続方法において、上記フレキシブルプ
リント基板の配線パターンを上記はんだ接続部を介して
上記リジッドプリント基板の配線パターンに接続するは
んだ付け工程と、このはんだ付け工程後に上記フレキシ
ブルプリント基板の補強部を折り曲げ上記リジッドプリ
ント基板に密着させる折り曲げ工程と、この折り曲げ工
程後に折り曲げた補強部を上記リジッドプリント基板に
固着する固着工程とを具備することを特徴とするフレキ
シブルプリント基板の接続方法。2. A main body portion made of a flexible member and having a wiring pattern formed from one side edge portion to the other side edge portion, and formed on at least one of the one side edge portion and the other side edge portion of the main body portion. Flexible printed circuit board connecting method to a rigid printed circuit board, wherein the flexible printed circuit board is provided with a tongue-shaped reinforcing section provided at both ends of the soldered connection section. A soldering step of connecting the wiring pattern of the wiring pattern to the wiring pattern of the rigid printed circuit board through the solder connection part, and a bending step of bending the reinforcing part of the flexible printed circuit board after the soldering step and closely contacting the rigid printed circuit board. A fixing step of fixing the bent reinforcing portion to the rigid printed circuit board after the bending step Method of connecting a flexible printed circuit board, characterized by comprising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15492493A JPH0715105A (en) | 1993-06-25 | 1993-06-25 | Flexible printed board and its connection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15492493A JPH0715105A (en) | 1993-06-25 | 1993-06-25 | Flexible printed board and its connection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0715105A true JPH0715105A (en) | 1995-01-17 |
Family
ID=15594930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15492493A Pending JPH0715105A (en) | 1993-06-25 | 1993-06-25 | Flexible printed board and its connection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0715105A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002016336A (en) * | 2000-06-28 | 2002-01-18 | Japan Aviation Electronics Industry Ltd | Electrical connection structure and its forming jig |
| CN102098875A (en) * | 2011-02-16 | 2011-06-15 | 华为终端有限公司 | Jointed board connecting structure of flexible printed circuit (FPC) and printed circuit board (PCB) in flexible/rigid printed board |
| JP2017216408A (en) * | 2016-06-01 | 2017-12-07 | 日本オクラロ株式会社 | Optical module and flexible substrate |
-
1993
- 1993-06-25 JP JP15492493A patent/JPH0715105A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002016336A (en) * | 2000-06-28 | 2002-01-18 | Japan Aviation Electronics Industry Ltd | Electrical connection structure and its forming jig |
| CN102098875A (en) * | 2011-02-16 | 2011-06-15 | 华为终端有限公司 | Jointed board connecting structure of flexible printed circuit (FPC) and printed circuit board (PCB) in flexible/rigid printed board |
| JP2017216408A (en) * | 2016-06-01 | 2017-12-07 | 日本オクラロ株式会社 | Optical module and flexible substrate |
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