JP2004327173A - Connector for circuit board and circuit board mounting it - Google Patents

Connector for circuit board and circuit board mounting it Download PDF

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Publication number
JP2004327173A
JP2004327173A JP2003118630A JP2003118630A JP2004327173A JP 2004327173 A JP2004327173 A JP 2004327173A JP 2003118630 A JP2003118630 A JP 2003118630A JP 2003118630 A JP2003118630 A JP 2003118630A JP 2004327173 A JP2004327173 A JP 2004327173A
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Japan
Prior art keywords
circuit board
connector
board connector
housing
mounting hole
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
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JP2003118630A
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Japanese (ja)
Inventor
Tokihiko Mori
時彦 森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
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Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP2003118630A priority Critical patent/JP2004327173A/en
Publication of JP2004327173A publication Critical patent/JP2004327173A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a circuit board in which a high density design is possible and which is used for an electronic apparatus with a high reliability, and to provide the circuit board mounting it. <P>SOLUTION: In the connector mounted on the circuit board having a plurality of mounting holes, a protrusion adhered to a bottom face of the connector is formed. The protrusion is buried in a housing of the connector, and has a flange-shaped stem and a tip protruding from the stem, and is inserted into the mounting hole of the circuit board to solder the tip to the mounting hole of the circuit board. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、一般に、電気コネクタに係わり、特に、回路配線基板の表面に実装される回路基板用コネクタ及びそれを実装する回路基板に関する。
【0002】
【従来の技術】
コンピュータ等の電子機器では、最近の軽量・軽薄化の要求と共に、電気コネクタの機構部分に対しても小型化を実現する表面実装化が望まれている。この電気コネクタの種類として、ケーブルと回路基板を接続するケーブル対ボードコネクタや回路基板同士を接続するスタッキングコネクタなどが存在する。特に、スタッキングコネクタを使用することで電子機器内の回路基板を立体的に配置できるようになり、電子機器の小型化を一層図ることが可能となった。
【0003】
また、コネクタは、脱着を目的とするため、外部力に耐えられる機構も要求されている。上記ケーブル対ボードコネクタは、コネクタの挿抜時のみにコネクタのはんだ部に外部から力が加わる。しかしながら、電子機器の小型化を一層図るために開発された上記スタッキングコネクタは、常時コネクタのはんだ部に外部から力が加わる。従来のスタッキングコネクタでは、外力に対して、細長いハウジングの各端に1つづつそして中心線の各側に配置され、コネクタの取り付け面から突出する一対の一体形成の位置合わせを兼ね備えた取り付けペグやボス(突起物)を使用していた(例えば、特許文献1参照)。この取り付けペグは、小さな長手方向リブを有し、これらは回路基板の取り付け穴に挿入したときにペグと穴との間に緊密な締りばねを形成するように潰すことができていた。
【0004】
【特許文献1】
特開2000−123894号公報(第4頁〜第5、第1図及び第2図)
【0005】
【発明が解決しようとする課題】
上記した従来技術のスタッキングコネクタでは、回路基板の取り付け穴に挿入した時、ペグと穴との間に緊密な締りばねを形成するように潰すリブを使用していた。しかしながら、電子機器の組み立て後、サブ回路基板に僅かな外力が長期間加わることで、スタッキングコネクタのはんだ部にクラックが発生し、リードがはがれて電気的に導通不良を引き起こす問題が生じていた。
【0006】
そこで、本発明は上記の問題を解決するためになされたものであり、高密度設計が可能でかつ信頼性の高い電子機器に使用される回路基板用コネクタ及びそれを実装する回路基板を提供することを目的とする。
【0007】
【課題を解決するための手段】
本発明の複数の装着孔を有する回路基板に実装されるコネクタは、前記コネクタの底面に固着した突起物を形成し、前記突起物は、前記コネクタのハウジング内に埋設され、フランジ状の基部と、前記基部から突出した先端部とを有し、前記回路基板の装着孔に挿入し、前記先端部と前記回路基板の装着孔とをはんだ付けすることを特徴とする。
【0008】
また、本発明の回路基板用コネクタを実装する回路基板は、複数の装着孔を有する回路基板と、前記回路基板に実装される回路基板用コネクタと、前記回路基板用コネクタは当該コネクタの底面に固着した突起物を形成し、前記突起物は、前記コネクタのハウジング内に埋設され、フランジ状の基部と、前記基部から突出した先端部とを有し、更に、前記回路基板用コネクタを前記回路基板の装着孔に挿入し、前記先端部と前記回路基板の装着孔とをはんだ付けられたことを特徴とする。
【0009】
このような構成によれば、スタッキングコネクタのはんだ部にクラックが発生し、リードがはがれて電気的に導通不良を引き起こすことを未然に防止でき、高密度設計が可能でかつ信頼性の高い電子機器に使用される回路基板用コネクタ及びそれを実装する回路基板を提供することができる。
【0010】
【発明の実施の形態】
以下、図面を参照してこの発明の実施形態を説明する。
【0011】
図1は、本実施形態の回路基板用コネクタの斜視図である。図2は、図1の回路基板用コネクタと相手の回路基板用コネクタとを示す正面図である。図3は、図2の回路基板用コネクタを側方から見た断面図である。図4は、図2の回路基板用コネクタの導入部の断面図である。
【0012】
図1に示す通り、本実施形態の回路基板用コネクタ10は、表面実装コネクタであり、ハウジング11の外形が比較的薄型で略直方体をなしており、中央に島状の突部12を有している。
【0013】
回路基板用コネクタ10は、周壁面13の両端部にそれぞれ固着されたL字型のホールダウン8などを有している。当該ホールダウン8は、回路基板用コネクタ10と回路基板との全体としてのはんだ付け強度を向上させるために使用される。図1及び図2に示す通り、両端部に固着される直立部分7と、これから略直角に延在する回路基板接続部分5とから構成されている。また、回路基板接続部5の底面は、通常、平面となっている。
【0014】
更に、本実施形態に於いては、回路基板用コネクタ10のハウジング11の底面の対角線上に回路基板用コネクタ10と一体にガイド突起物1、2を形成すると共に、この突起物1、2を回路基板に予め形成した装着孔35、37に挿入する構成としている。この突起物1、2は、絶縁性部材で形成され、基部が太径とされてフランジ状であり、ハウジング11に埋設されるとしっかりと固定できるようにしてある。突起物1、2の先端部は、AL等の金属部材で形成され、フランジ状の基部から突出した円柱形状を成している。ガイド突起1、2の寸法は、回路基板の円形状の装着孔35、37の大きさ(径)や回路基板厚などに応じて適宜選択される。例えば、図2に示される通り、ガイド突起物1、2が、装着孔1、2に装着された状態では、ガイド突起物1、2の先端部は、回路基板より少し突き出る状態となる。
【0015】
尚、本実施形態では、ガイド突起物1、2は、太径のフランジ形状の基部と円柱形状の先端部から構成されているが、このような形状に限らず、所定の厚さを有した舌状、又は、板状の形状部から構成しても良い。この場合、回路基板の装着孔も楕円状を有している。
【0016】
また、回路基板用コネクタ10のハウジング11は、島状の突部12と周壁部13との間に、該突部12をとり囲むように開口した凹部をなす嵌合空間14が形成されている。該嵌合空間14は、図2に示す通り相手の回路基板用コネクタ30が嵌合する空間として機能する。
【0017】
上記ハウジング11には、島状の突部12の両端において複数の接触20が配列されている。接触子20は、所定の金属シートから抜き加工により作られている。配列の接触子20は、図3に示す通り、同一に作られ、対称となるように位置づけられており、中央に固定部21、外側に脚部22、そしてその端部に接続部22A、さらに内側に接触部をもつ弾性腕部23を有している。固定部21は縦方向にほぼまっすぐに延びており、その縁部には係止突起21Aを有している。脚部22はハウジング外へ横方向に延びクランク状に屈曲した形状を成し、その端部をなす接続部22Aがハウジングのほぼ底面と同じか、もしくは若干下方に位置している。弾性腕部23は固定部21の基部からハウジングの内方へ延びた後にC状に湾曲し、その先端部に接触部24を有している。かかる接触子20の接続部22Aは、回路基板用コネクタ10が回路基板の所定のパッド上に配置された後、はんだ等により回路基板の対応回路部と接続されている。
【0018】
ハウジング11には、上記接触子20のための収容溝15が形成されている。この収容溝15は、周壁面13の下部にて下方へ開口するよう形成されて、接触子20の固定部21、脚部22そして弾性腕部23の三つの部分が連結されている領域を収容する入口部15Aと、接触子20の固定部21が圧入される固定溝部15Bと、弾性腕部23の弾性変形を許容する空間を提供するように突部12に形成された開放溝部15Cとを有している。このような収容溝15のそれぞれに、上記の接触子20が下方から収容される。該接触子20の固定部21は固定溝部15B内へ圧入され、その係止突起21Aが溝内面に喰い込むことにより、抜けが防止される。上記接触子20の接触部24は、ハウジングの凹部14内へ突出している。
【0019】
回路基板用コネクタ10のハウジング11の前面は、接触子20の配列方向に対し、深さ方向に導入部17を形成している。該導入部17は、ハウジング11の各端部で「口」字状に形成されており、その内縁には、導入斜面18が形成されている。
【0020】
一方、図2及び図3に示される相手の回路基板用コネクタ30は、回路基板へ表面実装され、回路基板用コネクタ30のハウジング31の外形面32が回路基板用コネクタ10のハウジング11の嵌合空間14の対応内面に合致するように形成され、中央部には、回路基板用コネクタ10の突部12を受入れる凹部33が形成されている。該凹部33の内側面には、接触子40が植接されている。接触子40は、回路基板用コネクタ10の接触子20と同様に金属シートを抜き加工して作られており、回路基板用コネクタ30のハウジング31の凹部33の内面で支持される接触部41と、凹部33の奥部位置で屈曲されてハウジングへ延出する脚部42とを有している。該脚部42は、ハウジング外へ横方向に延びクランク状に屈曲した形状を成し、その端部をなす接続部がハウジング31の底面とほぼ同一レベルもしくは若干上方に位置している。かかる相手の回路基板用コネクタ30は、回路基板用コネクタ30のハウジング31の底面が回路基板の所定のパッド上に配置され、接続部が対応回路部とはんだにより表面実装される。
【0021】
また、更に、回路基板用コネクタ10は、相手の回路基板用コネクタ30と嵌合するため、導入斜面18も大きく確保している。大きな導入斜面18は、相手の回路基板用コネクタ30を容易に導入し、いわゆる「さそい込み」が簡単になされる。特に、両回路基板用コネクタが回路基板に取り付けられている状態で嵌合する場合、嵌合がきわめてやりずらいので、上記さそい込みを容易にする。
【0022】
又、本実施形態にあっては、回路基板用コネクタ10の突部12は必須ではなく、ハウジング11が周壁部13と相手の回路基板用コネクタ30を受入れる凹部を有していれば、十分である。
【0023】
尚、本実施形態では、相手の回路基板用コネクタ30のさそい込みを行う導入斜面18を当該回路基板用コネクタ10のハウジング11の導入部に設けなくとも、この導入斜面18を相手の回路基板用コネクタ30に設けてもよい。例えば、図4は、回路基板用コネクタ10の導入部17と相手の回路基板用コネクタ30のハウジング31に形成された導入斜面32とを示している。また、当該導入斜面は、両コネクタに設けることもできる。
【0024】
尚、本実施形態では、接触子20、40は所定の金属シートから抜き加工により作られているが、曲げ加工により作られたものでも良い。
【0025】
次に、本発明の回路基板用コネクタ10を回路基板に搭載する製造手順は、以下の通りである。
【0026】
先ず、回路基板上のパッド(図示せず)にはんだをスクリーン印刷した後、突起物1、2を回路基板の所定の装着孔35、37に挿入する。次に、当該装着孔35、37にはんだが装填される。図示しないリフロー炉に回路基板用コネクタ10が回路基板に搭載実装された状態で搬入し、所定のパッド上のはんだと脚部22、突起物1、2の先端部と装着孔35、37のはんだがそれぞれ固着し、回路基板上のパッドと回路基板コネクタの脚部及び突起物と装着孔を機械的に接続する。
【0027】
この様な構成にすることにより、位置決め用突起物1、2が、回路基板の装着孔にはんだ付けされるので、回路基板用コネクタ10と回路基板とのはんだ付け結合強度を高めることができる。従って、電子機器の組み立て後、相手の回路基板用コネクタが実装された回路基板に僅かな外力が長期間加わることで、当該回路基板用コネクタ10のはんだ部にクラックが発生し、リードがはがれて電気的に導通不良を引き起こすことを未然に防止できる。
【0028】
尚、本実施形態では、前記突起物1、2は、円柱状の先端部の中心軸に沿って所定の深さの溝を細長く形成することにより、はんだとの接続をより強固に保つ事ができる。
【0029】
更に、本実施形態では、突起物1、2を回路用基板コネクタ10の底面の対角線上に形成したが、回路用基板コネクタ10の底面の四隅に夫々に形成することもできる。
【0030】
また、更に、本実施形態では、回路用基板コネクタ10の底面に突起物1、2を形成したが、例えば、図2に示す通り、相手の回路基板用コネクタ30の底面に突起物3、4を回路用基板コネクタ10の底面に突起物1、2と同様に形成し、回路基板の装着孔に挿入し、はんだ付けしても良いことは言うまでもない。
【0031】
【発明の効果】
以上説明したように、この発明によれば、スタッキングコネクタのはんだ部にクラックが発生し、リードがはがれて電気的に導通不良を引き起こすことを未然に防止でき、高密度設計が可能でかつ信頼性の高い電子機器に使用される回路基板用コネクタ及びそれを実装する回路基板を提供することができる。
【図面の簡単な説明】
【図1】本発明の一実施形態に係わる回路基板用コネクタの斜視図。
【図2】同実施形態に係わる回路基板用コネクタと相手コネクタの嵌合前を示す正面図。
【図3】同実施形態に係わる回路基板用コネクタを側方から見た断面図。
【図4】同実施形態に係わる回路基板用コネクタの導入部の断面図。
【符号の説明】
1、2、3、4・・・突起物、5・・・回路基板接続部分、7・・・直立部分、
8・・・ホールダウン、12・・・突部、13・・・周壁部、14・・・嵌合空間、
17・・・導入部、18・・・導入斜面、10、30・・・回路基板用コネクタ、
11・・・ハウジング、15・・・収容溝、20、40・・・接触子、21・・・固定部、
22・・・脚部、23・・・弾性腕部、24・・・接触部、31・・・ハウジング、
32・・・外形面、33・・・凹部、35、37・・・装着孔、41・・・接触部、
42・・・脚部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention generally relates to an electrical connector, and more particularly to a circuit board connector mounted on a surface of a circuit wiring board and a circuit board mounting the same.
[0002]
[Prior art]
In electronic devices such as computers, with the recent demand for lighter and thinner devices, there is a demand for surface mounting that realizes downsizing of the mechanical portion of the electrical connector. As the types of the electric connector, there are a cable-to-board connector for connecting a cable and a circuit board, a stacking connector for connecting circuit boards, and the like. In particular, by using the stacking connector, the circuit board in the electronic device can be three-dimensionally arranged, and the size of the electronic device can be further reduced.
[0003]
Further, the connector is required to have a mechanism capable of withstanding an external force for the purpose of attachment and detachment. In the cable-to-board connector, an external force is applied to the solder portion of the connector only when the connector is inserted or removed. However, in the stacking connector developed to further reduce the size of the electronic device, an external force is constantly applied to the solder portion of the connector. Conventional stacking connectors include mounting pegs, one at each end of the elongate housing and on each side of the centerline, which provide a pair of integrally formed alignments that protrude from the mounting surface of the connector against external forces. A boss (projection) has been used (for example, see Patent Document 1). The mounting pegs had small longitudinal ribs which could be crushed to form a tight tightening spring between the pegs and the holes when inserted into the mounting holes in the circuit board.
[0004]
[Patent Document 1]
JP-A-2000-123894 (pages 4 to 5, FIGS. 1 and 2)
[0005]
[Problems to be solved by the invention]
In the above-described stacking connector of the related art, a rib that is crushed so as to form a tight tightening spring between the peg and the hole when inserted into the mounting hole of the circuit board is used. However, when a small external force is applied to the sub-circuit board for a long period of time after assembling the electronic device, a crack occurs in the solder portion of the stacking connector, and the lead is peeled off, resulting in a problem of causing electrical conduction failure.
[0006]
The present invention has been made in order to solve the above-described problem, and provides a circuit board connector used for an electronic device that can be designed with high density and has high reliability, and a circuit board on which the connector is mounted. The purpose is to:
[0007]
[Means for Solving the Problems]
A connector mounted on a circuit board having a plurality of mounting holes according to the present invention forms a projection fixed to a bottom surface of the connector, and the projection is embedded in a housing of the connector, and has a flange-like base. And a tip protruding from the base, inserted into the mounting hole of the circuit board, and soldering the tip and the mounting hole of the circuit board.
[0008]
Further, a circuit board on which the circuit board connector of the present invention is mounted is a circuit board having a plurality of mounting holes, a circuit board connector mounted on the circuit board, and the circuit board connector is provided on a bottom surface of the connector. A fixed projection is formed, and the projection is embedded in a housing of the connector, has a flange-shaped base, and a tip protruding from the base, and further connects the circuit board connector to the circuit. It is characterized in that it is inserted into a mounting hole of the board, and the tip portion and the mounting hole of the circuit board are soldered.
[0009]
According to such a configuration, it is possible to prevent the occurrence of cracks in the solder portion of the stacking connector, the detachment of the leads and the occurrence of electrical continuity failure, and the high-density design and highly reliable electronic device. And a circuit board for mounting the same.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
FIG. 1 is a perspective view of the circuit board connector of the present embodiment. FIG. 2 is a front view showing the circuit board connector of FIG. 1 and a mating circuit board connector. FIG. 3 is a sectional view of the circuit board connector of FIG. 2 as viewed from the side. FIG. 4 is a sectional view of an introduction portion of the circuit board connector of FIG.
[0012]
As shown in FIG. 1, a circuit board connector 10 of the present embodiment is a surface mount connector, and the outer shape of a housing 11 is relatively thin and has a substantially rectangular parallelepiped shape, and has an island-shaped protrusion 12 in the center. ing.
[0013]
The circuit board connector 10 has L-shaped hole-downs 8 fixed to both ends of the peripheral wall surface 13 and the like. The hole-down 8 is used to improve the overall soldering strength of the circuit board connector 10 and the circuit board. As shown in FIG. 1 and FIG. 2, it is composed of an upright portion 7 fixed to both ends and a circuit board connecting portion 5 extending substantially at a right angle therefrom. Further, the bottom surface of the circuit board connecting portion 5 is usually a flat surface.
[0014]
Further, in the present embodiment, the guide projections 1 and 2 are formed integrally with the circuit board connector 10 on a diagonal line on the bottom surface of the housing 11 of the circuit board connector 10 and the projections 1 and 2 are formed. It is configured to be inserted into mounting holes 35 and 37 formed in advance on the circuit board. The projections 1 and 2 are formed of an insulating member, have a large diameter at the base and have a flange shape, and can be firmly fixed when embedded in the housing 11. The distal ends of the protrusions 1 and 2 are formed of a metal member such as AL, and have a cylindrical shape protruding from a flange-like base. The dimensions of the guide projections 1 and 2 are appropriately selected according to the size (diameter) of the circular mounting holes 35 and 37 of the circuit board and the thickness of the circuit board. For example, as shown in FIG. 2, when the guide projections 1 and 2 are mounted in the mounting holes 1 and 2, the tips of the guide projections 1 and 2 slightly protrude from the circuit board.
[0015]
In the present embodiment, the guide projections 1 and 2 are formed of a base portion having a large-diameter flange shape and a tip portion having a columnar shape. However, the present invention is not limited to such a shape, and has a predetermined thickness. A tongue-shaped or plate-shaped portion may be used. In this case, the mounting hole of the circuit board also has an elliptical shape.
[0016]
Further, in the housing 11 of the circuit board connector 10, a fitting space 14 is formed between the island-shaped protrusion 12 and the peripheral wall 13 so as to form a concave portion opened so as to surround the protrusion 12. . The fitting space 14 functions as a space into which the mating circuit board connector 30 is fitted as shown in FIG.
[0017]
The housing 11 has a plurality of contacts 20 arranged at both ends of the island-shaped protrusion 12. The contact 20 is made by punching a predetermined metal sheet. As shown in FIG. 3, the contacts 20 in the arrangement are identically made and positioned symmetrically, with a fixed part 21 in the center, a leg 22 on the outside, and a connecting part 22A at the end, and It has an elastic arm 23 having a contact portion inside. The fixing portion 21 extends substantially straight in the vertical direction, and has a locking projection 21A at an edge thereof. The leg 22 extends laterally out of the housing and has a shape bent in a crank shape, and a connecting portion 22A forming an end thereof is substantially the same as or slightly below the bottom surface of the housing. The elastic arm portion 23 extends from the base of the fixed portion 21 to the inside of the housing and then bends in a C-shape, and has a contact portion 24 at the tip thereof. The connection portion 22A of the contact 20 is connected to a corresponding circuit portion of the circuit board by soldering or the like after the circuit board connector 10 is arranged on a predetermined pad of the circuit board.
[0018]
A housing groove 15 for the contact 20 is formed in the housing 11. The accommodation groove 15 is formed so as to open downward at a lower portion of the peripheral wall surface 13 and accommodates a region where the three parts of the fixed part 21, the leg 22, and the elastic arm 23 of the contact 20 are connected. 15A, a fixing groove 15B into which the fixing part 21 of the contact 20 is press-fitted, and an open groove 15C formed in the protrusion 12 so as to provide a space for allowing elastic deformation of the elastic arm 23. Have. The contact 20 is accommodated in each of the accommodation grooves 15 from below. The fixing portion 21 of the contact 20 is press-fitted into the fixing groove 15B, and the locking projection 21A bites into the groove inner surface, thereby preventing the contact 20 from coming off. The contact portion 24 of the contact 20 projects into the recess 14 of the housing.
[0019]
The front surface of the housing 11 of the circuit board connector 10 forms an introduction portion 17 in the depth direction with respect to the arrangement direction of the contacts 20. The introduction portion 17 is formed in a “mouth” shape at each end of the housing 11, and an introduction slope 18 is formed at an inner edge thereof.
[0020]
On the other hand, the mating circuit board connector 30 shown in FIGS. 2 and 3 is surface-mounted on the circuit board, and the outer surface 32 of the housing 31 of the circuit board connector 30 is fitted to the housing 11 of the circuit board connector 10. A concave portion 33 is formed so as to match the corresponding inner surface of the space 14 and receives the projection 12 of the circuit board connector 10 at the center. A contact 40 is implanted on the inner surface of the recess 33. The contact 40 is formed by punching a metal sheet in the same manner as the contact 20 of the circuit board connector 10, and includes a contact portion 41 supported by the inner surface of the concave portion 33 of the housing 31 of the circuit board connector 30. And a leg portion 42 which is bent at a position inside the concave portion 33 and extends to the housing. The leg 42 has a shape that extends laterally out of the housing and is bent in the shape of a crank, and a connecting portion forming an end thereof is located at substantially the same level as or slightly above the bottom surface of the housing 31. In the mating circuit board connector 30, the bottom surface of the housing 31 of the circuit board connector 30 is disposed on a predetermined pad of the circuit board, and the connection portion is surface-mounted with the corresponding circuit portion by soldering.
[0021]
Further, since the circuit board connector 10 is fitted with the mating circuit board connector 30, the introduction slope 18 is also large. The large introduction slope 18 easily introduces the mating circuit board connector 30, and so-called “sagging” is easily performed. In particular, when both circuit board connectors are fitted in a state where they are attached to the circuit board, the fitting is extremely difficult, so that the above-mentioned sneaking is facilitated.
[0022]
Further, in the present embodiment, the protrusion 12 of the circuit board connector 10 is not essential, and it is sufficient if the housing 11 has a recess for receiving the peripheral wall portion 13 and the mating circuit board connector 30. is there.
[0023]
In the present embodiment, even if the introduction slope 18 for inserting the mating circuit board connector 30 into the housing 11 of the circuit board connector 10 is not provided at the introduction portion of the mating circuit board connector 30, the introduction slope 18 is not used. The connector 30 may be provided. For example, FIG. 4 shows the introduction portion 17 of the circuit board connector 10 and the introduction slope 32 formed on the housing 31 of the mating circuit board connector 30. Further, the introduction slope can be provided on both connectors.
[0024]
In the present embodiment, the contacts 20 and 40 are made by punching from a predetermined metal sheet, but may be made by bending.
[0025]
Next, a manufacturing procedure for mounting the circuit board connector 10 of the present invention on a circuit board is as follows.
[0026]
First, solder is screen-printed on pads (not shown) on the circuit board, and then the protrusions 1 and 2 are inserted into predetermined mounting holes 35 and 37 of the circuit board. Next, solder is loaded into the mounting holes 35 and 37. The circuit board connector 10 is carried into a reflow furnace (not shown) with the circuit board connector being mounted on the circuit board, and the solder on a predetermined pad and the tip of the legs 22, the protrusions 1 and 2 and the solder of the mounting holes 35 and 37 are soldered. Respectively, and mechanically connect the pads on the circuit board, the legs of the circuit board connector, and the projections to the mounting holes.
[0027]
With such a configuration, since the positioning projections 1 and 2 are soldered to the mounting holes of the circuit board, it is possible to increase the soldering strength between the circuit board connector 10 and the circuit board. Therefore, after assembling the electronic device, a slight external force is applied to the circuit board on which the mating circuit board connector is mounted for a long period of time, so that a crack occurs in the solder portion of the circuit board connector 10 and the lead is detached. It is possible to prevent electrical conduction failure from occurring.
[0028]
In the present embodiment, the protrusions 1 and 2 can maintain the connection with the solder more firmly by forming a groove having a predetermined depth along the center axis of the columnar tip. it can.
[0029]
Further, in the present embodiment, the protrusions 1 and 2 are formed diagonally on the bottom surface of the circuit board connector 10, but may be formed at four corners of the bottom surface of the circuit board connector 10.
[0030]
Further, in the present embodiment, the protrusions 1 and 2 are formed on the bottom surface of the circuit board connector 10. However, for example, as shown in FIG. It is needless to say that the same may be formed on the bottom surface of the circuit board connector 10 in the same manner as the projections 1 and 2 and inserted into the mounting hole of the circuit board and soldered.
[0031]
【The invention's effect】
As described above, according to the present invention, it is possible to prevent the occurrence of cracks in the solder portion of the stacking connector, the detachment of the leads and the occurrence of electrical continuity failure, and the high density design and the reliability. Circuit board connector used for an electronic device with high reliability and a circuit board on which the connector is mounted.
[Brief description of the drawings]
FIG. 1 is a perspective view of a circuit board connector according to an embodiment of the present invention.
FIG. 2 is an exemplary front view showing the circuit board connector and the mating connector according to the first embodiment before fitting;
FIG. 3 is an exemplary sectional view of the circuit board connector according to the embodiment as viewed from the side;
FIG. 4 is an exemplary sectional view of an introduction portion of the circuit board connector according to the embodiment;
[Explanation of symbols]
1, 2, 3, 4 ... projection, 5 ... circuit board connection part, 7 ... upright part,
8 ... hole down, 12 ... projection, 13 ... peripheral wall, 14 ... fitting space,
17 ... introduction part, 18 ... introduction slope, 10, 30 ... circuit board connector,
11 ... housing, 15 ... accommodation groove, 20, 40 ... contact, 21 ... fixed part,
22 ... leg, 23 ... elastic arm, 24 ... contact part, 31 ... housing,
32: external surface, 33: concave portion, 35, 37: mounting hole, 41: contact portion,
42 ... leg

Claims (7)

複数の装着孔を有する回路基板に実装されるコネクタに於いて、前記コネクタの底面に固着した突起物を形成し、前記突起物は、前記コネクタのハウジング内に埋設され、フランジ状の基部と、前記基部から突出した先端部とを有し、前記回路基板の装着孔に挿入し、前記先端部と前記回路基板の装着孔とをはんだ付けすることを特徴とする回路基板用コネクタ。In a connector mounted on a circuit board having a plurality of mounting holes, a protrusion fixed to a bottom surface of the connector is formed, and the protrusion is embedded in a housing of the connector, and has a flange-shaped base. A connector for a circuit board having a tip protruding from the base, being inserted into a mounting hole of the circuit board, and soldering the tip and the mounting hole of the circuit board. 前記突起物は、前記回路基板用コネクタの底面の対角線上の角部近傍に形成されることを特徴とする特許請求項1記載の回路基板用コネクタ。The circuit board connector according to claim 1, wherein the protrusion is formed near a diagonal corner of a bottom surface of the circuit board connector. 前記突起物の基部から突出した先端部は、中心軸に沿って所定の深さの溝を有していることを特徴する特許請求項1記載の回路基板用コネクタ。2. The connector for a circuit board according to claim 1, wherein a distal end protruding from a base of the projection has a groove having a predetermined depth along a central axis. 前記突起物は、円柱形状、又は、舌状のいずれか一方であることを特徴とする特許請求項1記載の回路基板用コネクタ。The connector according to claim 1, wherein the protrusion has one of a cylindrical shape and a tongue shape. 前記突起物は、前記回路基板の装着孔に挿入した際、前記回路基板から所定の長さで突き出ることを特徴とする特許請求項1記載の回路基板用コネクタ。2. The circuit board connector according to claim 1, wherein the protrusion protrudes from the circuit board by a predetermined length when inserted into the mounting hole of the circuit board. 前記回路基板用コネクタは、表面実装タイプのコネクタである特許請求項1記載の回路基板用コネクタ。2. The circuit board connector according to claim 1, wherein the circuit board connector is a surface mount type connector. 複数の装着孔を有する回路基板と、前記回路基板に実装される回路基板用コネクタと、前記回路基板用コネクタは当該コネクタの底面に固着した突起物を形成し、前記突起物は、前記コネクタのハウジング内に埋設され、フランジ状の基部と、前記基部から突出した先端部とを有し、更に、前記回路基板用コネクタを前記回路基板の装着孔に挿入し、前記先端部と前記回路基板の装着孔とをはんだ付けられたことを特徴とする回路基板用コネクタを実装する回路基板。A circuit board having a plurality of mounting holes, a circuit board connector mounted on the circuit board, and the circuit board connector forming a projection fixed to a bottom surface of the connector; It is embedded in the housing and has a flange-shaped base and a tip protruding from the base.Furthermore, the circuit board connector is inserted into a mounting hole of the circuit board, and the tip and the circuit board are inserted. A circuit board for mounting a circuit board connector, wherein the mounting hole and the mounting hole are soldered.
JP2003118630A 2003-04-23 2003-04-23 Connector for circuit board and circuit board mounting it Pending JP2004327173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103199375A (en) * 2012-01-06 2013-07-10 原瑞电池科技股份有限公司 Electric connector
CN103220878A (en) * 2012-01-18 2013-07-24 原瑞电池科技股份有限公司 Combined device of thin type battery and circuit board
US9726842B2 (en) 2015-04-17 2017-08-08 Sumitomo Electric Industries, Ltd. Optical source for coherent transceiver

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103199375A (en) * 2012-01-06 2013-07-10 原瑞电池科技股份有限公司 Electric connector
CN103199375B (en) * 2012-01-06 2015-05-06 原瑞电池科技股份有限公司 Electric connector
CN103220878A (en) * 2012-01-18 2013-07-24 原瑞电池科技股份有限公司 Combined device of thin type battery and circuit board
US9726842B2 (en) 2015-04-17 2017-08-08 Sumitomo Electric Industries, Ltd. Optical source for coherent transceiver

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