JP3982050B2 - Connector connection structure to circuit board - Google Patents

Connector connection structure to circuit board Download PDF

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Publication number
JP3982050B2
JP3982050B2 JP09325998A JP9325998A JP3982050B2 JP 3982050 B2 JP3982050 B2 JP 3982050B2 JP 09325998 A JP09325998 A JP 09325998A JP 9325998 A JP9325998 A JP 9325998A JP 3982050 B2 JP3982050 B2 JP 3982050B2
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Japan
Prior art keywords
circuit board
connector
terminal pin
connection structure
contact
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JP09325998A
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JPH11297429A (en
Inventor
和明 江坂
貴彦 吉田
嘉治 原田
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Denso Corp
Soken Inc
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Denso Corp
Nippon Soken Inc
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Description

【０００１】
【発明の属する技術分野】
本発明は、コネクタから延びる弾性を有するターミナルピンの端部を回路基板に圧接することにより、コネクタを回路基板へ電気的に接続するコネクタ接続構造に関する。
【０００２】
【従来の技術】
この種の回路基板へのコネクタ接続構造としては、圧接型コネクタがある。これは、一端側がコネクタに固定されたターミナルピンの他端側を、回路基板に弾性的に圧接して、コネクタと回路基板とを電気的に接続するものである。それによって、回路基板と外部機器の電極との接続にワイヤボンダや半田付け等を用いず、ワンタッチで接続できるため組み付け工数を減らすことが可能である。
【０００３】
ここで、ターミナルピンの形状としては、例えば特開平４−３３６５７５号公報に記載のプラグ端子のように、コネクタ側から延びるとともに先端が回路基板に接続される、片持ちばね形状としたものが一般的である。
【０００４】
【発明が解決しようとする課題】
本発明者等は、上記片持ちばね形状を有するターミナルピンを用いて試作検討を行った。図３（ａ）は、本発明者等が試作した回路基板へのコネクタ接続構造を示す説明図である。なお、２点鎖線は後述の熱膨張時の状態を示す。
３はコネクタであり、樹脂ハウジングに電気配線部材が一体化され、図示しない部分にて外部機器と電気的に接続可能となっている。４は回路基板であり、基板固定部（固定部）５にて図示しない固定部材によって動かないように固定されている。なお固定部材としては上記樹脂ハウジングまたは回路基板のハウジングの一部等を用いることができる。
【０００５】
１０は、片持ちばねからなるターミナルピンである。ターミナルピン１０の一端はコネクタ３と電気的に接続されるとともにコネクタ３に固定支持され（支持部１０ａ）、他端（先端）は圧接されて回路基板４に弾性力を作用させた状態で、回路基板４に設けられた接触導体部と導通接触している（接触部１０ｂ）。そして、回路基板４はコネクタ３を介して外部機器と電気信号のやり取りを行うことが可能となる。
【０００６】
この試作品に基づいて検討した結果、従来のターミナルピン形状やその配置構成では、例えば自動車用の回路基板等、温度変化の大きい環境に使用されるものに適用した場合、以下のような問題があることがわかった。
すなわち、回路基板４とターミナルピン１０との接続部分（接触部１０ａ）において、回路基板４の熱膨張量Ｌ１とターミナルピン１０の熱膨張量Ｌ２の違いにより、図３（ａ）に示すような、ずれΔＬ（＝Ｌ２−Ｌ１）が発生する。そのため、圧接接続においては温度変化の際、熱膨張、熱収縮により両者が摺動し、基板４及びピン１０のめっきやペーストなどの表面材料が摩耗して、接触抵抗が不安定となり、信頼性が低くなるという問題が生じる。
【０００７】
例えば、図３（ａ）に示す試作品において、ハウジングスペースを５ｍｍ×１０ｍｍ、ターミナルピン１０の材質をりん青銅（熱膨張係数：１．７６×１０-5）、回路基板４の材質をアルミナ（熱膨張係数：９．０×１０-6）とし、温度を０℃から８０℃に変化させた。
このとき、８０℃において、ターミナルピン１０及び回路基板４はそれぞれ図の２点鎖線の状態に熱膨張し、回路基板４に平行方向の熱膨張量は、ターミナルピン１０が１７．６μｍ、回路基板４が７．２μｍであり、よって、ピンと基板のずれ量ΔＬは１０．４μｍであった。
【０００８】
また、本発明者等は、図３（ｂ）に示す様に、ターミナルピン１０を曲がりばね形状としたものについても検討したが、図３（ａ）の試作品と同様に、ずれΔＬによる問題が発生した。
本発明は上記点に鑑みて、コネクタから延びる弾性を有するターミナルピンの端部を回路基板に圧接することにより、コネクタを回路基板へ電気的に接続するコネクタ接続構造において、回路基板とターミナルピンの熱膨張量の違いによるずれを低減し抵抗値の安定化をはかることを目的とする。
【０００９】
【課題を解決するための手段】
本発明者等は、上記目的を達成するため、ターミナルピンのコネクタへの支持部、ターミナルピンの回路基板との接触部、及び回路基板の固定部、これら三者の位置関係に着目し、ターミナルピン及び回路基板の熱膨張量の違いによる回路基板平行方向のずれを略０とすることを考えた。
【００１０】
例えば、上記図３に示す試作品では、ターミナルピン１０の接触部１０ｂが、支持部１０ａから回路基板４に降ろした垂線上に無い。そのため、熱膨張した場合、ターミナルピン１０は支持部１０ａから回路基板４に平行方向に変位する。一方、回路基板４は基板固定部５を始点として同方向に変位する。よって、ターミナルピン１０と回路基板４の熱膨張率に相違があれば、上記ずれΔＬが発生してしまう。
【００１１】
請求項１ないし請求項３記載の発明は、上記三者の位置関係に着目してなされたものである。なお、以下、本欄において各手段の括弧内の符号は、後述する実施形態記載の具体的手段との対応関係を示すものである。すなわち、請求項１記載の発明によれば、弾性部材からなるターミナルピン（１）を介して電気的に接続する回路基板へのコネクタ接続構造において、ターミナルピン（１）を一端側にてコネクタ（３）に支持固定し、他端側にて回路基板（４）に弾性力を作用させた状態で導通接触させ、回路基板（４）の固定部（５）を固定部材（６）により固定して回路基板（４）が固定部（５）を中心として熱膨張するようにし、ターミナルピン（１）の支持部（１ａ）、接触部（１ｂ）、及び回路基板（４）の固定部（５）を、回路基板（４）に対する同一な垂線（Ｈ）上に位置させたことを特徴としている。
【００１２】
本発明では、回路基板（４）の固定部（５）は固定されているため熱膨張（または熱収縮）により変位せず、回路基板（４）は固定部（５）を中心として熱膨張する。そして、ターミナルピン（１）においては、支持部（１ａ）と接触部（１ｂ）とが回路基板（４）の固定部（５）と同一の垂線（Ｈ）にあるため、温度変化による熱膨張（または熱収縮）はこの垂線（Ｈ）方向に起こる。ここで、ターミナルピン（１）の膨張（または収縮）した分は、ターミナルピン（１）自身の弾性力によって、垂線（Ｈ）を軸とした径方向に変形することで吸収できる。
【００１３】
従って、ターミナルピン（１）と回路基板（４）との接点において、両者（１、４）のずれ（ΔＬ）は発生せず、抵抗値の安定化を図ることができる。なお、回路基板（４）の上記垂線（Ｈ）方向の熱膨張（または熱収縮）による変位も、ターミナルピン（１）の弾性力の作用により吸収されるため問題はない。
また、具体的にターミナルピン（１）は、請求項２記載の発明のように、支持部（１ａ）と接触部（１ｂ）との間で、上記垂線（Ｈ）に対し曲がり形状を有するものにでき、またその材質は、請求項３記載の発明のように、りん青銅、ベリリウム銅、チタン銅のうちから選択される合金材料からなるものにすることができる。
【００１４】
【発明の実施の形態】
以下、本発明を図に示す実施形態について説明する。
図１は本発明の回路基板へのコネクタ接続構造（以下、接続構造という）の実施形態を示す説明図である。本実施形態の接続構造は、例えば温度変化の激しい自動車用の電気機器等に用いて好適である。なお、本実施形態では、上述の図３に示す回路基板へのコネクタ接続構造と、異なる部分について主として説明し、同一部分については図中同一符号を付して、補足説明をするにとどめる。
【００１５】
本実施形態の接続構造も、コネクタ３と回路基板４とを、両者間に介在するターミナルピン１にて電気的に接続した構造としている。
図１においては、コネクタ３のうち樹脂ハウジングを図示しており、この樹脂としては、ＰＢＴ（ポリブチレンテレフタレート）、ＰＰＳ（ポリフェニレンサルファイド）、ＰＡ４６（ポリアミド４６）、ＰＡ６６（ポリアミド６６）等を用いることができる。
【００１６】
この樹脂ハウジングには、弾性部材としてのＳ字状に曲がった曲がりばねからなるターミナルピン１が組付けられている。ここで、ターミナルピン１は、りん青銅、ベリリウム銅あるいはチタン銅等の合金材料に、表面めっき材料として金、銀、ニッケル、銅、すず等をめっきしたものを用いることができる。
回路基板４はアルミナ基板からなり、この回路基板４のコネクタ３の樹脂ハウジングと対向する側の面（表面）２に、金ペースト、金メッキ、銀メッキ、はんだメッキ等の表面材料が接触導体部として形成されたものである。
【００１７】
そして、回路基板４は、上記接触導体部が形成された面２とは反対側の面（裏面）において、図１に示す部位にて、上記樹脂ハウジングまたは回路基板４のハウジング（図示せず）の一部等を用いた固定部材６によって、動かないように固定されている。この回路基板４の固定された部分が基板固定部５である。
また、ターミナルピン１は、上記樹脂ハウジングと回路基板４の面２との間に介在設定されており、一端側がコネクタ３の樹脂ハウジングに支持固定されるとともに、コネクタ３の電気配線部材と電気的に接続（導通）されている。そして、他端側が回路基板４の面２に弾性力を作用させた状態で圧接され、回路基板４の接触導体部と導通接触している。
【００１８】
このようにして、回路基板４はコネクタ３を介して外部機器と電気信号のやり取りを行うことが可能となる。ここで、ターミナルピン１において、コネクタ３の樹脂ハウジングに固定支持された部分を支持部１ａ、回路基板４の接触導体部と導通接触している部分を接触部１ｂとする。
そして、本実施形態では、図１に示すように、ターミナルピン１の支持部１ａ、接触部１ｂ及び基板固定部５の三者が、基板に対する同一な垂線（図中、点線で示す）Ｈ上に配置されており、温度変化によるターミナルピン１と回路基板４の導体接触部とのずれが発生しない。次に、上記配置関係による作用について述べる。
【００１９】
まず、温度変化の際、回路基板４の基板固定部５は固定されているため熱膨張により変位せず、回路基板４は基板固定部５を中心として熱膨張する。そして、ターミナルピン１においては、支持部１ａと接触部１ｂとが基板固定部５と同一な垂線Ｈにあるため、温度変化による熱膨張はこの垂線Ｈ方向に起こる。ターミナルピン１の膨張した分は、ターミナルピン１自身の弾性力によって、垂線Ｈを軸とした径方向に逃がすことができる。
【００２０】
ここで、ターミナルピン１、回路基板４及びコネクタ３の樹脂ハウジングにおいて、図１の２点鎖線で示す状態は、熱膨張後の状態（例えば、温度８０℃）を示す。
なお、回路基板４の垂線Ｈ方向の熱膨張による変位も、ターミナルピン１の弾性力の作用により吸収されるため問題はなく、また、ターミナルピン１の支持部１ａも垂線Ｈ上にあるため、コネクタ３の樹脂ハウジングの熱膨張の影響を受けることはない。
【００２１】
また、熱収縮の場合にも、上記熱膨張に準じた作用を奏し、収縮によるずれ発生を防止することができるため、その説明を省略する。
従って、ターミナルピン１と回路基板４の接触導体部との接点において、温度変化の際の熱膨張、熱収縮によるずれ両者のずれΔＬは発生せず、回路基板４およびターミナルピン１のめっきやペーストなどの表面材料の摩耗を抑え、接触抵抗の安定性を向上することができる。
【００２２】
また、図２のようにターミナルピン１を略Ｃ字型形状としてもよい。このような形状であっても、上記図１のコネクタ接続構造と同様な効果が得られることは勿論である。
（他の実施形態）
なお、上記実施形態では、ターミナルピン１は両部１ａ、１ｂの間で垂線Ｈに対し曲がり形状を有するものであったが、真っ直ぐな形状（つまり垂線と略一致した形）でもよい。ターミナルピン１は弾性部材なので、膨張した場合は弾性力によって垂線Ｈを軸とした径方向に曲がり、収縮した場合は垂線Ｈ方向に弾性的に延びることで吸収できる。
【図面の簡単な説明】
【図１】本発明の実施形態に係る回路基板へのコネクタ接続構造を示す図である。
【図２】上記実施形態に係る他の例を示す図である。
【図３】本発明者等が試作した回路基板へのコネクタ接続構造を示す図である。
【符号の説明】
１…ターミナルピン、１ａ…ターミナルピンのコネクタへの支持部、
１ｂ…ターミナルピンの回路基板との接触部、３…コネクタ、４…回路基板、
５…回路基板の基板固定部、６…固定部材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector connection structure for electrically connecting a connector to a circuit board by press-contacting end portions of terminal pins having elasticity extending from the connector to the circuit board.
[0002]
[Prior art]
As a connector connection structure to this type of circuit board, there is a pressure contact type connector. In this method, the other end of the terminal pin whose one end is fixed to the connector is elastically pressed against the circuit board to electrically connect the connector and the circuit board. As a result, the circuit board and the electrode of the external device can be connected with one touch without using a wire bonder or soldering, so that the number of assembling steps can be reduced.
[0003]
Here, as a shape of the terminal pin, for example, a plug terminal described in JP-A-4-336575 is generally a cantilever spring shape that extends from the connector side and has a tip connected to a circuit board. Is.
[0004]
[Problems to be solved by the invention]
The inventors of the present invention conducted a trial manufacture using the terminal pin having the above cantilever spring shape. FIG. 3 (a) is an explanatory view showing a connector connection structure to a circuit board made by the inventors. The two-dot chain line indicates a state during thermal expansion described later.
Reference numeral 3 denotes a connector, in which an electric wiring member is integrated with the resin housing, and can be electrically connected to an external device at a portion not shown. Reference numeral 4 denotes a circuit board, which is fixed by a board fixing portion (fixing portion) 5 so as not to move by a fixing member (not shown). The fixing member may be a part of the resin housing or the circuit board housing.
[0005]
Reference numeral 10 denotes a terminal pin made of a cantilever spring. One end of the terminal pin 10 is electrically connected to the connector 3 and is fixedly supported by the connector 3 (support portion 10a), and the other end (tip) is pressed and elastic force is applied to the circuit board 4, The contact conductor portion provided on the circuit board 4 is in conductive contact (contact portion 10b). The circuit board 4 can exchange electrical signals with an external device via the connector 3.
[0006]
As a result of examination based on this prototype, the conventional terminal pin shape and its arrangement configuration have the following problems when applied to an environment used for a large temperature change such as a circuit board for an automobile, for example. I found out.
That is, in the connection portion (contact portion 10a) between the circuit board 4 and the terminal pin 10, due to the difference between the thermal expansion amount L1 of the circuit board 4 and the thermal expansion amount L2 of the terminal pin 10, as shown in FIG. A deviation ΔL (= L2−L1) occurs. Therefore, in pressure connection, when the temperature changes, both slide due to thermal expansion and contraction, the surface material such as plating and paste of the substrate 4 and the pin 10 wears, and the contact resistance becomes unstable. The problem that becomes low occurs.
[0007]
For example, in the prototype shown in FIG. 3A, the housing space is 5 mm × 10 mm, the material of the terminal pin 10 is phosphor bronze (thermal expansion coefficient: 1.76 × 10 −5 ), and the material of the circuit board 4 is alumina ( The thermal expansion coefficient was 9.0 × 10 −6 ), and the temperature was changed from 0 ° C. to 80 ° C.
At this time, at 80 ° C., the terminal pin 10 and the circuit board 4 are thermally expanded in the state of the two-dot chain line in the figure, and the amount of thermal expansion in the direction parallel to the circuit board 4 is 17.6 μm for the terminal pin 10. 4 was 7.2 μm, and thus the deviation ΔL between the pin and the substrate was 10.4 μm.
[0008]
In addition, the present inventors also examined a case where the terminal pin 10 has a bent spring shape as shown in FIG. 3 (b). However, as in the prototype of FIG. 3 (a), the problem caused by the deviation ΔL. There has occurred.
In view of the above points, the present invention provides a connector connection structure for electrically connecting a connector to a circuit board by press-contacting an end of an elastic terminal pin extending from the connector to the circuit board. The purpose is to reduce the deviation due to the difference in thermal expansion and stabilize the resistance value.
[0009]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present inventors pay attention to the positional relationship among these three parts, the support part of the terminal pin to the connector, the contact part of the terminal pin with the circuit board, and the fixing part of the circuit board. The shift in the parallel direction of the circuit board due to the difference in thermal expansion between the pins and the circuit board was considered to be substantially zero.
[0010]
For example, in the prototype shown in FIG. 3, the contact portion 10 b of the terminal pin 10 is not on a perpendicular line that is lowered from the support portion 10 a to the circuit board 4. Therefore, when thermally expanded, the terminal pin 10 is displaced in the direction parallel to the circuit board 4 from the support portion 10a. On the other hand, the circuit board 4 is displaced in the same direction starting from the board fixing portion 5. Therefore, if there is a difference between the thermal expansion coefficients of the terminal pin 10 and the circuit board 4, the deviation ΔL occurs.
[0011]
The inventions according to claims 1 to 3 are made by paying attention to the positional relationship between the three. In the following, in this column, the reference numerals in parentheses for each means indicate the correspondence with the specific means described in the embodiments described later. That is, according to the first aspect of the invention, in the connector connection structure to the circuit board that is electrically connected via the terminal pin (1) made of an elastic member, the terminal pin (1) is connected to the connector ( 3) is supported and fixed to the circuit board (4) at the other end, and is brought into conductive contact with the elastic force applied, and the fixing part (5) of the circuit board (4) is fixed by the fixing member (6). The circuit board (4) is thermally expanded around the fixing part (5), and the supporting part (1a) of the terminal pin (1), the contact part (1b), and the fixing part (5 of the circuit board (4)). ) On the same perpendicular (H) to the circuit board (4).
[0012]
In the present invention, since the fixing part (5) of the circuit board (4) is fixed, it is not displaced by thermal expansion (or thermal contraction) , and the circuit board (4) is thermally expanded around the fixing part (5). . In the terminal pin (1), since the support part (1a) and the contact part (1b) are on the same vertical line (H) as the fixing part (5) of the circuit board (4), thermal expansion due to temperature change (Or heat shrinkage) occurs in this perpendicular (H) direction. Here, the expansion (or contraction) of the terminal pin (1) can be absorbed by being deformed in the radial direction about the perpendicular (H) by the elastic force of the terminal pin (1) itself.
[0013]
Therefore, at the contact point between the terminal pin (1) and the circuit board (4), the shift (ΔL) between the two (1, 4) does not occur, and the resistance value can be stabilized. Note that the displacement due to the thermal expansion (or thermal contraction) of the circuit board (4) in the perpendicular (H) direction is also absorbed by the action of the elastic force of the terminal pin (1), so there is no problem.
Further, specifically, the terminal pin (1) has a bent shape with respect to the perpendicular (H) between the support portion (1a) and the contact portion (1b) as in the invention described in claim 2. Further, the material thereof can be made of an alloy material selected from phosphor bronze, beryllium copper, and titanium copper, as in the third aspect of the invention.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments shown in the drawings will be described below.
FIG. 1 is an explanatory view showing an embodiment of a connector connection structure (hereinafter referred to as a connection structure) to a circuit board according to the present invention. The connection structure of the present embodiment is suitable for use in, for example, electric equipment for automobiles having a rapid temperature change. In the present embodiment, the difference from the connector connection structure to the circuit board shown in FIG. 3 described above will be mainly described, and the same portions will be denoted by the same reference numerals in the drawing and supplementary description will be given.
[0015]
The connection structure of this embodiment also has a structure in which the connector 3 and the circuit board 4 are electrically connected by the terminal pins 1 interposed therebetween.
In FIG. 1, a resin housing is shown in the connector 3. As this resin, PBT (polybutylene terephthalate), PPS (polyphenylene sulfide), PA46 (polyamide 46), PA66 (polyamide 66) or the like is used. Can do.
[0016]
A terminal pin 1 made of a bending spring bent in an S shape as an elastic member is assembled to the resin housing. Here, the terminal pin 1 can be made of an alloy material such as phosphor bronze, beryllium copper or titanium copper plated with gold, silver, nickel, copper, tin or the like as a surface plating material.
The circuit board 4 is made of an alumina substrate, and a surface material such as gold paste, gold plating, silver plating, or solder plating is used as a contact conductor on the surface (surface) 2 of the circuit board 4 on the side facing the resin housing of the connector 3. It is formed.
[0017]
The circuit board 4 has the resin housing or the housing of the circuit board 4 (not shown) at the portion shown in FIG. 1 on the surface (back surface) opposite to the surface 2 on which the contact conductor portion is formed. It is fixed so as not to move by a fixing member 6 using a part of. The fixed part of the circuit board 4 is a board fixing part 5.
The terminal pin 1 is interposed between the resin housing and the surface 2 of the circuit board 4, and one end side is supported and fixed to the resin housing of the connector 3 and is electrically connected to the electric wiring member of the connector 3. Is connected (conductive). The other end is pressed against the surface 2 of the circuit board 4 with an elastic force applied, and is in conductive contact with the contact conductor portion of the circuit board 4.
[0018]
In this way, the circuit board 4 can exchange electrical signals with external devices via the connector 3. Here, in the terminal pin 1, a portion fixed and supported by the resin housing of the connector 3 is a support portion 1 a, and a portion that is in conductive contact with the contact conductor portion of the circuit board 4 is a contact portion 1 b.
In the present embodiment, as shown in FIG. 1, the three support members 1a, contact portions 1b, and substrate fixing portion 5 of the terminal pin 1 are on the same perpendicular line (indicated by dotted lines in the figure) H to the substrate. The terminal pin 1 and the conductor contact portion of the circuit board 4 are not displaced due to a temperature change. Next, the effect | action by the said arrangement | positioning relationship is described.
[0019]
First, when the temperature changes, the board fixing portion 5 of the circuit board 4 is fixed, so that it does not displace due to thermal expansion, and the circuit board 4 thermally expands around the board fixing portion 5. And in the terminal pin 1, since the support part 1a and the contact part 1b are on the same perpendicular H as the board | substrate fixing | fixed part 5, the thermal expansion by a temperature change occurs in this perpendicular H direction. The expanded portion of the terminal pin 1 can be released in the radial direction with the perpendicular H as an axis by the elastic force of the terminal pin 1 itself.
[0020]
Here, in the resin housing of the terminal pin 1, the circuit board 4, and the connector 3, the state shown by a two-dot chain line in FIG. 1 indicates a state after thermal expansion (for example, a temperature of 80 ° C.).
The displacement due to the thermal expansion of the circuit board 4 in the direction of the perpendicular H is also absorbed because of the elastic force of the terminal pin 1, and the support portion 1a of the terminal pin 1 is also on the perpendicular H. The resin housing of the connector 3 is not affected by thermal expansion.
[0021]
Also, in the case of heat shrinkage, the effect equivalent to the above thermal expansion is exerted, and the occurrence of deviation due to shrinkage can be prevented, so that description thereof is omitted.
Accordingly, there is no deviation ΔL between the terminal pin 1 and the contact conductor portion of the circuit board 4 due to thermal expansion and thermal contraction during temperature change, and plating and paste of the circuit board 4 and the terminal pin 1 are not caused. It is possible to suppress the wear of surface materials such as and improve the stability of contact resistance.
[0022]
Further, the terminal pin 1 may be substantially C-shaped as shown in FIG. Even with such a shape, it is a matter of course that the same effect as the connector connection structure of FIG. 1 can be obtained.
(Other embodiments)
In the above-described embodiment, the terminal pin 1 has a curved shape with respect to the perpendicular H between the two portions 1a and 1b, but may be a straight shape (that is, a shape substantially coincident with the perpendicular). Since the terminal pin 1 is an elastic member, when it expands, it can be absorbed by elastically bending in the radial direction with the perpendicular H as an axis, and when contracted, it elastically extends in the perpendicular H direction.
[Brief description of the drawings]
FIG. 1 is a diagram showing a connector connection structure to a circuit board according to an embodiment of the present invention.
FIG. 2 is a diagram showing another example according to the embodiment.
FIG. 3 is a diagram showing a connector connection structure to a circuit board made by the present inventors as a prototype.
[Explanation of symbols]
1 ... terminal pin, 1a ... support part of the terminal pin to the connector,
1b: Contact portion of terminal pin with circuit board, 3 ... Connector, 4 ... Circuit board,
5 ... a board fixing part of the circuit board, 6 ... a fixing member.

Claims (3)

回路基板（４）とこの回路基板（４）と外部機器とを電気的に接続するためのコネクタ（３）とを、このコネクタ（３）に導通して設けられたターミナルピン（１）を介して電気的に接続する回路基板へのコネクタ接続構造において、
前記ターミナルピン（１）は弾性部材からなり、一端側にて前記コネクタ（３）に支持固定され、他端側にて前記回路基板（４）に弾性力を作用させた状態で導通接触しており、
前記回路基板（４）の所定部位は、固定部材（６）によって固定された固定部（５）を構成し、前記回路基板（４）は、前記固定部（５）を中心として熱膨張するようになっており、
前記ターミナルピン（１）の前記コネクタ（３）への支持部（１ａ）、前記ターミナルピン（１）の前記回路基板（４）との接触部（１ｂ）、及び、前記回路基板（４）の前記固定部（５）が、前記回路基板（４）に対する同一な垂線（Ｈ）上に位置していることを特徴とする回路基板へのコネクタ接続構造。A circuit board (4) and a connector (3) for electrically connecting the circuit board (4) and an external device are connected to the connector (3) via terminal pins (1). In the connector connection structure to the circuit board to be electrically connected,
The terminal pin (1) is made of an elastic member, is supported and fixed to the connector (3) at one end side, and is in conductive contact with the circuit board (4) at the other end side while applying an elastic force. And
The predetermined part of the circuit board (4) constitutes a fixing part (5) fixed by a fixing member (6), and the circuit board (4) thermally expands around the fixing part (5). And
A support part (1a) for the terminal pin (1) to the connector (3), a contact part (1b) of the terminal pin (1) with the circuit board (4), and a circuit board (4) The connector connecting structure to the circuit board, wherein the fixing part (5) is located on the same perpendicular line (H) to the circuit board (4). 前記ターミナルピン（１）は、前記支持部（１ａ）と前記接触部（１ｂ）との間で、前記垂線（Ｈ）に対し曲がり形状を有することを特徴とする請求項１に記載の回路基板へのコネクタ接続構造。  The circuit board according to claim 1, wherein the terminal pin (1) has a bent shape with respect to the perpendicular (H) between the support portion (1a) and the contact portion (1b). Connector connection structure to. 前記ターミナルピン（１）は、りん青銅、ベリリウム銅、チタン銅のうちから選択される合金材料からなることを特徴とする請求項１または２に記載の回路基板へのコネクタ接続構造。  The connector connection structure to a circuit board according to claim 1 or 2, wherein the terminal pin (1) is made of an alloy material selected from phosphor bronze, beryllium copper, and titanium copper.
JP09325998A 1998-04-06 1998-04-06 Connector connection structure to circuit board Expired - Fee Related JP3982050B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP09325998A JP3982050B2 (en) 1998-04-06 1998-04-06 Connector connection structure to circuit board

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JP09325998A JP3982050B2 (en) 1998-04-06 1998-04-06 Connector connection structure to circuit board

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CN102509981A (en) * 2011-09-29 2012-06-20 聚信科技有限公司 Single board connection plate and interconnection structure

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Publication number Priority date Publication date Assignee Title
JPS54136960U (en) * 1978-03-15 1979-09-22
JPH0352965U (en) * 1989-09-29 1991-05-22
US5397240A (en) * 1993-10-26 1995-03-14 International Business Machines Corporation Electrical connector
US5395252A (en) * 1993-10-27 1995-03-07 Burndy Corporation Area and edge array electrical connectors
JPH0822852A (en) * 1994-07-05 1996-01-23 Sumitomo Electric Ind Ltd Circuit board connector
JP3768589B2 (en) * 1996-03-30 2006-04-19 株式会社エンプラス Electrical connection device
JPH09274956A (en) * 1996-04-02 1997-10-21 S Ii R:Kk Compact type contact terminal
JP3321524B2 (en) * 1996-06-07 2002-09-03 日本航空電子工業株式会社 connector

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