JPH03250568A - Terminal structure of connector - Google Patents
Terminal structure of connectorInfo
- Publication number
- JPH03250568A JPH03250568A JP2045734A JP4573490A JPH03250568A JP H03250568 A JPH03250568 A JP H03250568A JP 2045734 A JP2045734 A JP 2045734A JP 4573490 A JP4573490 A JP 4573490A JP H03250568 A JPH03250568 A JP H03250568A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- leg
- wall
- tip
- connector
- 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 abstract description 13
- 230000037431 insertion Effects 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 6
- 229910000906 Bronze Inorganic materials 0.000 claims description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010974 bronze Substances 0.000 claims description 5
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 5
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
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
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/306—Lead-in-hole components, e.g. affixing or retention before soldering, spacing means
- H05K3/308—Adaptations of leads
Landscapes
- Multi-Conductor Connections (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
Description
【発明の詳細な説明】
〔概 要〕
プリント基板との電気的な接続のために使用されるコネ
クタに関し、特に、プリント基板に設けられたスルーホ
ールに挿入されるコネクタの端子の構造に関し、
製造が容易でスルーホールへの挿入の際に充分な弾発力
を発揮し、プリント基板上に安定して固定できると共に
、脱着に際しスルーホールの壁面を損傷することの少な
いコネクタの柔構造端子構造を提供することを目的とし
、
燐青銅等の導電性と弾性を併せ持つ材料で作られ、フォ
ーク状に二股に分岐した脚からなる挿入部を有し、鉄脚
の間の間隙は先端部に向かって次第に拡がり、自由状態
における該挿入部の拡がり平面内での最大巾が対応する
プリント基板のスルーホールの直径よりも大きく設定さ
れているコネクタの端子構造であって、前記拡がり平面
に垂直な平面内における前記脚の厚みが先端部に向かっ
て次第に狭くなっている構成とする。[Detailed Description of the Invention] [Summary] This invention relates to a connector used for electrical connection with a printed circuit board, and in particular to the structure of a terminal of the connector inserted into a through hole provided in a printed circuit board. The connector has a flexible terminal structure that is easy to insert, exhibits sufficient elasticity when inserted into the through-hole, can be stably fixed on the printed circuit board, and is less likely to damage the wall of the through-hole when removed. It is made of a material that has both conductivity and elasticity, such as phosphor bronze, and has an insertion section consisting of fork-shaped legs, with the gap between the iron legs extending toward the tip. A terminal structure of a connector that gradually expands and has a maximum width in the expansion plane of the insertion portion in a free state that is set larger than the diameter of the through hole of the corresponding printed circuit board, and in a plane perpendicular to the expansion plane. The thickness of the leg is gradually narrowed toward the tip.
本発明は、プリント基板との電気的な接続のた給に使用
されるコネクタに関し、特に、プリント基板に設けられ
たスルーホールに挿入されるコネフタの端子の構造に関
する。The present invention relates to a connector used for electrical connection with a printed circuit board, and particularly to the structure of a terminal of a connector cover inserted into a through hole provided in a printed circuit board.
電子部品を搭載したプリント基板には、第５図に示すよ
うなコネクタ１が使用され、これに植設された端子２の
先端２ａをプリント基板３に設けられたスルーホール４
内に挿入して固定される。A connector 1 as shown in FIG. 5 is used on the printed circuit board on which electronic components are mounted, and the tip 2a of the terminal 2 implanted in the connector 1 is inserted into the through hole 4 provided in the printed circuit board 3.
It is inserted inside and fixed.
そして反対側に突出した他端２ｂを外部コネクタ（図示
しない）に嵌合させて外部との電気的な接続を行ってい
る。The other end 2b protruding to the opposite side is fitted into an external connector (not shown) to establish an electrical connection with the outside.
従来、この端子とスルーホールとの固定には半田付けが
採用されていたが、この方式は半田付は工程が必要なこ
とと、半田が所定個所以外に付着して不都合を生じる可
能性があること等の欠点があるたｔ１最近では端子をス
ルーホールに圧入するだけで固定を行ういわゆるプレス
フィツト方式％式％
このプレスフィツト方式には、角型断面の端子を円形断
面のスルーホール内に圧入して四隅でスルーホール自体
を押し拡げて両者を固定する剛構造と、端子の一部を予
め特殊の形態に形成しておき、圧入の際にこの部分を弾
性変形させてその弾発力で固定を行う柔構造とがある。Conventionally, soldering was used to fix this terminal to the through hole, but this method requires a soldering process and may cause problems if the solder adheres to other than the designated areas. Recently, the so-called press-fit method, in which the terminal is fixed by simply press-fitting it into the through-hole, has been introduced. A rigid structure that fixes the two by pushing the through hole itself apart at the four corners, and a part of the terminal that is formed in a special shape in advance, and this part is elastically deformed when press-fitting, and the elastic force is used to create a rigid structure. There is a flexible structure that performs fixation.
剛構造の端子は、スルーホールを損傷する恐れがあるの
で好ましくなく、一方、柔構造の端子は製造工程が複雑
である上、スルーホールに挿入する際に、端子の構造に
よっては、外部コネクタと嵌合する他端２ｂが回転又は
傾斜する傾向を示すものがあり、この場合、結果として
外部コネクタとの接続信頼性を低下させる欠点がある。Terminals with a rigid structure are undesirable because they may damage the through-hole, while terminals with a flexible structure have a complicated manufacturing process and may be difficult to connect to the external connector when inserted into the through-hole, depending on the structure of the terminal. There are some cases in which the other end 2b to be fitted has a tendency to rotate or tilt, and in this case, there is a drawback that the connection reliability with the external connector is reduced as a result.
本発明者は、このような柔構造の端子の改善案として、
第６図に示すように、燐青銅等の導電性と弾性を併せ持
つ材料で作られ、フォーク状に二股に分岐した脚１１か
らなる挿入部１０を有し、該脚１１０間の間隙が先端部
に向かって次第に拡がった端子構造を特願平１−２４１
８２０号として提案した。これによって、スルーホール
に挿入した場合に脚１１が傾斜して接触不良を生じる欠
点は解消した。The present inventor has proposed an improvement plan for such a flexible terminal.
As shown in FIG. 6, it has an insertion section 10 made of a material having both conductivity and elasticity, such as phosphor bronze, and consisting of legs 11 branched into two in a fork shape, and the gap between the legs 110 is at the tip. Patent application No. 1-241 describes a terminal structure that gradually expands toward the
It was proposed as No. 820. This eliminates the problem of the leg 11 being inclined and causing poor contact when inserted into a through hole.
しかし、この方式の端子においては、脚１１の厚さＤが
一定になっているため、スルーホールに圧入される際に
、脚１１の四つの稜線のそれぞれが、その先端から基部
までスルーホールの内壁面上に同一の直線状軌跡に沿っ
てこれを擦りながら挿入されることになり、スルーホー
ルの内壁面の傷を深くし、電気的接触の信頼性を低下さ
せる問題点が新たに見出された。However, in this type of terminal, the thickness D of the leg 11 is constant, so when the leg 11 is press-fitted into the through hole, each of the four ridge lines of the leg 11 extends from the tip to the base of the through hole. A new problem has been discovered: the through-hole is inserted while rubbing along the same linear trajectory, deepening the scratches on the inner wall of the through-hole and reducing the reliability of electrical contact. It was done.
本発明は、こうした先願発明の問題点を解決し、製造が
容易でスルーホールへの挿入の際に充分な弾発力を発揮
し、プリント基板上に安定して固定できると共に、挿入
に際してスルーホールの内壁を傷つけることの少ないコ
ネクタの柔構造の端子構造を提供することを目的とする
。The present invention solves the problems of the prior invention, is easy to manufacture, exhibits sufficient elasticity when inserted into a through hole, can be stably fixed on a printed circuit board, and can be inserted through a through hole. It is an object of the present invention to provide a flexible terminal structure for a connector that causes less damage to the inner wall of a hole.
この目的は、燐青銅等の導電性と弾性を併せ持つ材料で
作られ、フォーク状に二股に分岐した脚からなる挿入部
を有し、鉄脚の間の間隙は先端部に向かって次第に拡が
り、自由状態における該挿入部の拡がり平面内での最大
巾が対応するプリント基板のスルーホールの直径よりも
大きく設定されているコネクタの端子構造であって、前
記拡がり平面に垂直な平面内における前記脚の厚みが先
端部に向かって次第に狭くなっていることを特徴とする
コネクタの端子構造によって達成される。This purpose is to have an insertion part made of a material that has both conductivity and elasticity, such as phosphor bronze, and consisting of fork-shaped legs, with the gap between the iron legs gradually widening toward the tip. A terminal structure of a connector in which a maximum width of the insertion portion in a free state in a plane of expansion is set larger than a diameter of a through hole of a corresponding printed circuit board, the leg in a plane perpendicular to the plane of expansion. This is achieved by the terminal structure of the connector, which is characterized in that the thickness of the connector gradually becomes narrower toward the tip.
この端子の先端をプリント基板のスルーホールに挿入す
ると、二股に分岐した脚はその間隙を縮小しながらスル
ーホール内に押し込まれ、その弾発力によって脚の稜線
がスルーホールの内壁に密着して全面にわたってこれに
押圧力を及ぼす。これによって、両者間の安定した固定
が保証される。When the tip of this terminal is inserted into the through hole of the printed circuit board, the bifurcated leg is pushed into the through hole while reducing the gap, and its elastic force causes the ridge of the leg to stick tightly to the inner wall of the through hole. Apply pressure to it over the entire surface. This ensures stable fixation between the two.
脚の厚さが先端に向かって減少しているので、圧入の際
にスルーホールの内壁と接触し合う脚の稜線部分を微小
領域（点）に分割して考えた場合、これらの各点はそれ
ぞれ異なった直線状軌跡に沿ってスルーホールの内壁上
を移動するので、軌跡の重複が避けられ、スルーホール
内壁を傷つける確率が大幅に減少する。Since the thickness of the leg decreases toward the tip, if we divide the ridgeline of the leg that comes into contact with the inner wall of the through-hole during press-fitting into minute regions (points), each of these points is Since they move on the inner wall of the through-hole along different linear trajectories, overlapping trajectories can be avoided, and the probability of damaging the inner wall of the through-hole is greatly reduced.
以下、図面に示す好適実施例に基づいて、本発明を更に
詳細に説明する。Hereinafter, the present invention will be explained in more detail based on preferred embodiments shown in the drawings.
第１図（ａ）、 （ｂ）、 （ｃ）は、本発明のコ
ネクタの柔構造端子の形状の三面図を示す。この端子は
燐青銅等の導電性と弾性の両者を併せ持つ材料から打ち
抜き加工等によって製造され、スルーホールに挿入・固
定されるべきその挿入部１０は、フォーク状に分岐した
２本の脚１１に分かれている。FIGS. 1(a), 1(b), and 1(c) show three views of the shape of the flexible structure terminal of the connector of the present invention. This terminal is manufactured by punching from a material that has both conductivity and elasticity, such as phosphor bronze, and its insertion portion 10, which is to be inserted and fixed into a through hole, has two legs 11 branched into a fork shape. I know.
この両脚１１の間の間隙は、先端に向かうにつれて次第
に広くなるように設定され、挿入［１０の最大重（Ｗ）
は挿入されるべきスルーホールの直径（Ｄ）よりも大き
めになっている。又、各脚１０の先端部は先細り状のテ
ーバ１２がつけられ、γ−１図（ａ）において、最先端
での両脚間の巾（Ｔ）はスルーホール４の直径（Ｄ）よ
り小さく設定されて、スルーホールへの挿入が円滑に行
われるように配慮されている。The gap between the legs 11 is set so that it gradually becomes wider toward the tip, and the maximum weight (W) of the insertion [10]
is larger than the diameter (D) of the through hole to be inserted. In addition, a tapered taper 12 is attached to the tip of each leg 10, and the width (T) between the two legs at the tip is set smaller than the diameter (D) of the through hole 4 in Fig. γ-1 (a). Care has been taken to ensure smooth insertion into the through hole.
各脚１１の太さ、即ち第１図（ｂ）に示すように、前記
中（Ｔ）の規定されている平面に直交する平面内におけ
る厚み（１）は、先端部に向かって先細り状に減少して
いる。The thickness of each leg 11, that is, the thickness (1) in a plane perpendicular to the defined plane of the middle (T), as shown in FIG. 1(b), tapers toward the tip. is decreasing.
この端子が円形断面のスルーホールへ挿入されると、脚
１１はその側面の稜線１１ａをスルーホール４の内周面
に接した状態で次第にスルーホール４の奥まで入り込み
、これにつれて脚１１は内側に弾性的に湾曲して両脚の
間の間隙は次第に狭まる。これによってスルーホール４
の内周面と脚１１との間の圧力が増大する。そして、最
後には挿入部１０の大部分の領域で脚１１の４本の稜線
１１ａはスルーホール４の内周と接触するので、傾くこ
となく安定してスルーホール内に固定される。この状態
を第２図（ａ）〜（ｃ）に示す。When this terminal is inserted into a through hole with a circular cross section, the leg 11 gradually enters the back of the through hole 4 with the ridge line 11a on the side surface in contact with the inner circumferential surface of the through hole 4, and as the leg 11 moves inwards. The gap between the legs gradually narrows as the legs elastically curve. This allows through hole 4
The pressure between the inner peripheral surface of the leg 11 and the leg 11 increases. Finally, the four ridgelines 11a of the legs 11 come into contact with the inner periphery of the through-hole 4 in most areas of the insertion section 10, so that the leg 11 is stably fixed in the through-hole without tilting. This state is shown in FIGS. 2(a) to 2(c).
このスルーホール４への脚１１の圧入時に、脚１１の稜
線上の各点がスルーホール４の内壁上に描く軌跡の展開
図を第３図に示す。即ち、第１図及び第２図に示す一つ
の稜線上の下方の点Ａは、スルーホール４の入口円周Ｘ
の座標ａ°の位置で内壁に接触し、その接触を維持した
ままスルーホールの内部の深さｈの点Ａ゛まで進入して
停止する。稜線上の上方の点Ｂは、点Ａの領域よりも厚
さの大きい領域に存在しているので、その厚さの差だけ
ずれた座標ｂ°の位置で内壁に接触し、その接触を維持
して深さｋの点Ｂ゛まで進入して停止する。FIG. 3 shows a developed view of the trajectory drawn by each point on the ridgeline of the leg 11 on the inner wall of the through hole 4 when the leg 11 is press-fitted into the through hole 4. That is, the lower point A on one ridge line shown in FIGS. 1 and 2 is the entrance circumference X of the through hole 4.
It comes into contact with the inner wall at the coordinate a°, and while maintaining that contact, it enters the through hole to a point A' at a depth h and stops. Since the upper point B on the ridge exists in a region that is thicker than the region of point A, it contacts the inner wall at the coordinate b°, which is shifted by the difference in thickness, and maintains that contact. Then, it advances to point B' at depth k and stops.
この結果、脚１１の稜線ＡＢは展開図において斜めの直
線Ａ″ Ｂ゛に沿ってスルーホールの内壁と接触するこ
とになる。稜線上の各点の軌跡ｐは直線ＡＡ’ 、 Ｂ
Ｂ’ に平行な直線となって、座標ａ、 ｂの間に分
散することは明らかである。４本の稜線についてこれら
の軌跡を表すと、第３図の４組の平行直線群となる。因
みに、本発明の基礎となっている先願発明の端子の場合
には、厚さが上下方向で一定のため、圧入時の軌跡は、
第４図に示すように、各稜線毎に一本の直線となり、稜
線上の各点の軌跡が重複することが判る。As a result, the ridge line AB of the leg 11 comes into contact with the inner wall of the through hole along the diagonal straight line A'' and B'' in the developed view.The locus p of each point on the ridge line is the straight line AA', B.
It is clear that it becomes a straight line parallel to B' and is distributed between coordinates a and b. When these trajectories are expressed for the four ridge lines, they become four sets of parallel straight lines shown in FIG. Incidentally, in the case of the terminal of the earlier invention, which is the basis of the present invention, the thickness is constant in the vertical direction, so the trajectory during press-fitting is
As shown in FIG. 4, it can be seen that there is one straight line for each ridgeline, and the trajectories of each point on the ridgeline overlap.
このように、本発明のコネクタ端子は、先端が二股に分
岐した単純なフォーク状の形態を有しているので、打ち
抜き加工によって容易に製造可能である。又、スルーホ
ールに対して圧入する際に、端子の先端部から次第に変
形して弾発力を増加し、最後には脚の両側面の稜線で対
称的にスルーホールの内周に接触するので、無理なく圧
入ができると共に、バランスのとれた安定した固定状態
が得られる。As described above, since the connector terminal of the present invention has a simple fork-like form with a bifurcated tip, it can be easily manufactured by punching. Also, when press-fitting into a through-hole, the tip of the terminal gradually deforms and increases its elastic force, and finally it contacts the inner circumference of the through-hole symmetrically at the ridge lines on both sides of the leg. , it can be press-fitted easily and a balanced and stable fixing state can be obtained.
更に、スルーホールへの圧入時に、稜線上の各点がスル
ーホールの内壁上に別々の軌跡を描いて挿入されるので
、内壁の損傷が減少する。Furthermore, when press-fitting into the through-hole, each point on the ridge line is inserted with a separate trajectory on the inner wall of the through-hole, thereby reducing damage to the inner wall.
第１図（ａ＞〜（Ｃ）は、本発明の端子の形態を示す三
面図、
第２図（ａ）〜（Ｃ）は、スルーホールに挿入された本
発明の端子の形態を示す三面図、第３図は、本発明の端
子の脚とスルーホールの内壁との接触軌跡を示す展開図
、
第４図は、先願発明の端子の脚とスルーホールの内壁と
の接触軌跡を示す展開図、
第５図は、本発明が利用されるコネクタの全体構造を示
す斜視図、
第６図は、先願発明の端子の形態を示す斜視図である。
１− コネクタハウジング、３・−プリント基板、４・
−スルーホール、 １０・挿入部、１１− 脚。Figures 1(a>-(C) are three-view views showing the form of the terminal of the present invention; Figures 2(a)-(C) are three-view views showing the form of the terminal of the present invention inserted into a through hole. 3 is a developed view showing the contact trajectory between the terminal leg of the present invention and the inner wall of the through hole, and FIG. 4 is a developed view showing the contact trajectory between the terminal leg of the prior invention and the inner wall of the through hole. 5 is a perspective view showing the overall structure of the connector to which the present invention is applied; FIG. 6 is a perspective view showing the form of the terminal of the prior invention. 1- Connector housing, 3.- Printed circuit board, 4.
-Through hole, 10-insertion part, 11-leg.
Claims (1)
フォーク状に二股に分岐した脚（１１）からなる挿入部
（１０）を有し、該脚（１１）の間の間隙は先端部に向
かって次第に拡がり、自由状態における該挿入部（１０
）の拡がり平面内での最大巾（Ｗ）が対応するプリント
基板のスルーホール（４）の直径（Ｄ）よりも大きく設
定されているコネクタの端子構造であって、前記拡がり
平面に垂直な平面内における前記脚（１１）の厚み（ｔ
）が先端部に向かって次第に狭くなっていることを特徴
とする端子構造。1. Made of a material that has both conductivity and elasticity, such as phosphor bronze,
It has an insertion part (10) consisting of legs (11) bifurcated in a fork shape, and the gap between the legs (11) gradually widens toward the distal end, so that the insertion part (10) in a free state
) is a terminal structure of a connector in which the maximum width (W) within the expansion plane is set larger than the diameter (D) of the through hole (4) of the corresponding printed circuit board, and the plane is perpendicular to the expansion plane. The thickness (t
) is gradually narrower toward the tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2045734A JPH03250568A (en) | 1990-02-28 | 1990-02-28 | Terminal structure of connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2045734A JPH03250568A (en) | 1990-02-28 | 1990-02-28 | Terminal structure of connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03250568A true JPH03250568A (en) | 1991-11-08 |
Family
ID=12727552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2045734A Pending JPH03250568A (en) | 1990-02-28 | 1990-02-28 | Terminal structure of connector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03250568A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005174654A (en) * | 2003-12-09 | 2005-06-30 | Auto Network Gijutsu Kenkyusho:Kk | Press fit terminal |
| JP2008502114A (en) * | 2004-06-09 | 2008-01-24 | ファイゲル アンドレアス | Press-fit contact and method of manufacturing the press-fit contact |
| DE19831394B4 (en) * | 1998-07-14 | 2008-09-11 | Marquardt Gmbh | Carrier for components |
| US7491897B2 (en) | 2002-09-30 | 2009-02-17 | Fujitsu Ten Limited | Electronic equipment provided with wiring board into which press-fit terminals are press-fitted |
| JP2016219778A (en) * | 2015-05-15 | 2016-12-22 | 三菱電機株式会社 | Power semiconductor device |
-
1990
- 1990-02-28 JP JP2045734A patent/JPH03250568A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19831394B4 (en) * | 1998-07-14 | 2008-09-11 | Marquardt Gmbh | Carrier for components |
| US7491897B2 (en) | 2002-09-30 | 2009-02-17 | Fujitsu Ten Limited | Electronic equipment provided with wiring board into which press-fit terminals are press-fitted |
| JP2005174654A (en) * | 2003-12-09 | 2005-06-30 | Auto Network Gijutsu Kenkyusho:Kk | Press fit terminal |
| JP2008502114A (en) * | 2004-06-09 | 2008-01-24 | ファイゲル アンドレアス | Press-fit contact and method of manufacturing the press-fit contact |
| JP2016219778A (en) * | 2015-05-15 | 2016-12-22 | 三菱電機株式会社 | Power semiconductor device |
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