JP2010135196A - Contact - Google Patents

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JP2010135196A
JP2010135196A JP2008310572A JP2008310572A JP2010135196A JP 2010135196 A JP2010135196 A JP 2010135196A JP 2008310572 A JP2008310572 A JP 2008310572A JP 2008310572 A JP2008310572 A JP 2008310572A JP 2010135196 A JP2010135196 A JP 2010135196A
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Japan
Prior art keywords
contact
curved
piece
edge
portions
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JP2008310572A
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Japanese (ja)
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Kazutomi Sato
一臣 佐藤
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Japan Aviation Electronics Industry Ltd
日本航空電子工業株式会社
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Priority to JP2008310572A priority Critical patent/JP2010135196A/en
Publication of JP2010135196A publication Critical patent/JP2010135196A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a contact capable of obtaining stable and low contact resistance even with contact points stained with flux or the like. <P>SOLUTION: The contact 1 is provided with curved parts 4 formed by punching a metal plate. An edge part 5 inside each curved part is crushed, and a protruded contact part 8 protruded outward is formed at a corresponding edge part 7 outside each curved part. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、電気コネクタなどに端子として使用可能なコンタクトに関する。   The present invention relates to a contact that can be used as a terminal in an electrical connector or the like.
この種のコンタクトの一例は特許文献1に開示されている。そのコンタクトは、互いに対向した接点間に相手コンタクトを挟み込んで接触させる構造である。接点は滑らかな曲面に形成されている。こうした滑らかな形状の接点は、接離を多数回繰り返すコネクタの場合に、接点表面の摩耗を減らし安定した接触抵抗を維持するのに貢献する。   An example of this type of contact is disclosed in Patent Document 1. The contact has a structure in which a mating contact is sandwiched and brought into contact between contact points facing each other. The contact is formed in a smooth curved surface. Such a smooth-shaped contact contributes to reducing contact surface wear and maintaining stable contact resistance in the case of a connector that repeatedly contacts and separates many times.
実用新案第254832号公報Utility Model No. 254832
しかしながら、接点が絶縁性の被膜をもつ場合、例えば、はんだ付け工程で混入したフラックス等で汚染された場合は、嵌合時の所謂ワイピング動作、即ち、接点間を摺動させる動作を行ってもその皮膜の破壊が難しく、したがって低く安定した接触抵抗を得ることはできない。具体的に述べると、コネクタのプリント基板へのはんだ付け作業で接点までフラックスが上がった場合や、プリント基板に予め塗布されているプリフラックスが接点部分にもある場合には、通常の滑らかな接点形状及び接触力では接触抵抗が非常に高く接触不良になる。   However, when the contact has an insulating film, for example, when it is contaminated with flux mixed in the soldering process, the so-called wiping operation at the time of fitting, that is, the operation of sliding between the contacts may be performed. The film is difficult to break and therefore low and stable contact resistance cannot be obtained. Specifically, when the flux is raised to the contact during the soldering operation of the connector to the printed circuit board, or when the preflux pre-applied to the printed circuit board is also present at the contact portion, the normal smooth contact In terms of shape and contact force, contact resistance is very high, resulting in poor contact.
それ故に本発明の課題は、フラックス等で汚染された接点でも安定した低い接触抵抗が得られるコンタクトを提供することにある。   Therefore, an object of the present invention is to provide a contact capable of obtaining a stable low contact resistance even with a contact contaminated with a flux or the like.
本発明の一態様によれば、金属板を打ち抜くことにより形成された湾曲部を有するコンタクトにおいて、前記湾曲部の内側のエッジ部分を潰し、これにより前記湾曲部の外側のエッジ部分を外側に向けて突出させて突起状接点部を形成したことを特徴とするコンタクトが得られる。   According to one aspect of the present invention, in a contact having a curved portion formed by punching a metal plate, the inner edge portion of the curved portion is crushed, and thereby the outer edge portion of the curved portion is directed outward. Thus, it is possible to obtain a contact characterized by forming a protruding contact portion.
前記湾曲部を含む接触片を有し、前記湾曲部は前記接触片の一面側に膨出するように曲げ形成されていてもよい。   The contact piece may include a bending portion, and the bending portion may be bent so as to bulge to one surface side of the contact piece.
前記接触片は、前記一面側が打ち抜きダレ面、他面側が打ち抜き面で構成されていてもよい。   The contact piece may be configured by a punching sag surface on the one surface side and a punching surface on the other surface side.
前記接触片を一対有し、該一対の接触片は互いに対向しかつ端部を連結片で一体に連結されていてもよい。   A pair of the contact pieces may be provided, the pair of contact pieces may be opposed to each other and the ends may be integrally connected with a connecting piece.
前記エッジ部分は面打ち加工により潰されていてもよい。   The edge portion may be crushed by surface machining.
前記湾曲部の外面が接触部とされ、前記突起状接点部は前記接触部の両側に夫々形成されていてもよい。   An outer surface of the curved portion may be a contact portion, and the protruding contact portion may be formed on both sides of the contact portion.
本発明の一態様によるコンタクトは、湾曲部の外側のエッジ部分が外側に突出して突起状接点部を形成しているので、その接点部がフラックス等で汚染された場合でも、安定した低い接触抵抗が得られる。   In the contact according to one aspect of the present invention, since the outer edge portion of the curved portion protrudes outward to form a protruding contact portion, even when the contact portion is contaminated with a flux or the like, stable low contact resistance Is obtained.
図1は本発明の第1の実施形態に係るコンタクトとしてのソケットコンタクトの斜視図であり、図2はソケットコンタクト1の要部(図の一点鎖線で囲んだ部分)のみを示す拡大斜視図であり、図3は図2のIII−III線に沿って得られた断面図であり、図4は図3の要部拡大図である。   FIG. 1 is a perspective view of a socket contact as a contact according to the first embodiment of the present invention, and FIG. 2 is an enlarged perspective view showing only a main part of the socket contact 1 (portion surrounded by a one-dot chain line in the figure). 3 is a cross-sectional view taken along line III-III in FIG. 2, and FIG. 4 is an enlarged view of the main part of FIG.
このソケットコンタクト1は金属板に打ち抜き及び曲げ加工を施して形成されたものであり、互いに対向した板状の対の接触片2と、接触片2の端部を一体に連結した連結片3とを有している。対の接触片2は、互いに接近又は離間する方向でそれぞれバネ性を有し、かつ、自由端の近傍に互いに接近する向きに突出するように湾曲した湾曲部4をそれぞれ有している。湾曲部4の内側の左右エッジ部分5には凹部6が形成されている。これらの凹部6に対応して、湾曲部4の外側の左右エッジ部分7には、外側に向けて突出した鋭く尖った突起状の接点部8がそれぞれ形成されている。接点部8の間の部分を、接触部9と呼ぶ。   The socket contact 1 is formed by punching and bending a metal plate, a pair of plate-like contact pieces 2 facing each other, and a connecting piece 3 in which end portions of the contact pieces 2 are integrally connected. have. The pair of contact pieces 2 each have a spring property in a direction toward or away from each other, and have curved portions 4 that are curved so as to protrude toward each other in the vicinity of the free end. Concave portions 6 are formed in the left and right edge portions 5 inside the curved portion 4. Corresponding to these recesses 6, sharp and pointed projecting contact portions 8 projecting outward are formed on the left and right edge portions 7 on the outer side of the curved portion 4. A portion between the contact portions 8 is referred to as a contact portion 9.
図5は図1のソケットコンタクトの接続相手となるピンコンタクトを接続させた状態の断面図である。   FIG. 5 is a cross-sectional view of a state in which a pin contact which is a connection partner of the socket contact of FIG. 1 is connected.
ピンコンタクト10は板状のタブ端子であり、対の接触片2の間に強制挿入される。すると、接触片2は弾力的に撓み、その復元力により湾曲部4をピンコンタクト10に圧接させる。その結果、ソケットコンタクト1とピンコンタクト10とが電気的に接続される。その際、湾曲部4の鋭く尖った突起状の接点部8が合計4箇所でピンコンタクト10に食い込むように接触するので、仮に接点部8やピンコンタクト10の接点部にフラックス等の絶縁性の皮膜が付着していたとしても、その皮膜は接点部8により食い破られることになる。したがって、小さな接触力で安定した低い接触抵抗を得ることができる。   The pin contact 10 is a plate-like tab terminal and is forcibly inserted between the pair of contact pieces 2. Then, the contact piece 2 is elastically bent, and the bending portion 4 is pressed against the pin contact 10 by the restoring force. As a result, the socket contact 1 and the pin contact 10 are electrically connected. At that time, since the sharply pointed protruding contact portions 8 of the curved portion 4 come into contact with the pin contact 10 at a total of four locations, the contact portion 8 or the contact portion of the pin contact 10 has an insulating property such as flux. Even if the film is adhered, the film is broken by the contact portion 8. Therefore, a stable low contact resistance can be obtained with a small contact force.
このように、従来と同じ接触力を与えても絶縁性の皮膜を食い破って金属同士の接触を得ることができるため、接触抵抗が低く安定する。したがって、上述したソケットコンタクトは、接点が絶縁性の被膜で汚染される危険性のあるコネクタに用いて効果的である。   Thus, even if the same contact force as before is applied, the insulating film can be eroded and a contact between metals can be obtained, so that the contact resistance is low and stable. Therefore, the socket contact described above is effective for use in a connector in which the contact may be contaminated with an insulating coating.
なお、ソケットコンタクト1とピンコンタクト10との接触点は4箇所に限られない。   The contact point between the socket contact 1 and the pin contact 10 is not limited to four.
次に、図2−図4を用いて、上述したソケットコンタクト1の製造方法の一例を具体的に説明する。   Next, an example of the manufacturing method of the socket contact 1 mentioned above is concretely demonstrated using FIGS.
先ず、プレスせん断加工により金属板を所定形状に打ち抜く。この結果、通常は、金属板の切断面は、打ち抜きの前部には比較的整った面からなるせん断面11が形成されるが、打ち抜きの後部には比較的粗い面からなる破断面12が形成される。さらに、破断面12の後端にはバリ13が形成される。   First, a metal plate is punched into a predetermined shape by press shearing. As a result, the cut surface of the metal plate is usually formed with a shear surface 11 made of a relatively smooth surface at the front part of the punching, but a fracture surface 12 made of a relatively rough surface at the rear part of the punching. It is formed. Further, a burr 13 is formed at the rear end of the fracture surface 12.
次に、接触片となる板状部分の一面側における両エッジ部分、具体的には、せん断面11に隣接したエッジ部分の一部を面打ち加工で潰すことで、反対面側の両エッジ部分に凸部を形成させる。この結果、板状部分の両面に所謂打ち抜き面2a及び打ち抜きダレ面2bがそれぞれ形成される。   Next, both edge portions on one surface side of the plate-like portion serving as the contact piece, specifically, a portion of the edge portion adjacent to the shearing surface 11 is crushed by face punching, so that both edge portions on the opposite surface side Protrusions are formed on As a result, a so-called punched surface 2a and a punched sag surface 2b are formed on both surfaces of the plate-like portion.
その後、接触片となる板状部分を、バリ13が形成された面が外側になるように曲げて円筒面形状に加工する。即ち、湾曲部4を接触片2の一面側に膨出形成する、すると、両エッジ部分に形成された凸部即ち余肉がさらに外側に向かって突出し、鋭く尖った突起となる。かくして、湾曲部4の左右エッジ部分にそれぞれ、鋭く尖った突起状の接点部8が形成される。このように、板状部分を円筒面に曲げると馬の鞍形状の変形を起こすことを利用し、曲げ加工の前に面打ち加工を施すことで、よりエッジの立った接点部8を実現することができる。   After that, the plate-like portion that becomes the contact piece is bent so that the surface on which the burr 13 is formed is on the outside and is processed into a cylindrical surface shape. That is, when the curved portion 4 is formed so as to bulge on one surface side of the contact piece 2, the convex portions formed at both edge portions, that is, surplus portions, protrude further outward to form sharply sharp projections. Thus, sharply pointed projection-like contact portions 8 are formed at the left and right edge portions of the curved portion 4, respectively. In this way, by utilizing the fact that when the plate-like part is bent into a cylindrical surface, deformation of the horse's saddle shape occurs, the contact part 8 having a more edged state is realized by performing the face-bending process before the bending process. be able to.
最後に、ソケットコンタクト1の表面全体に導電性のメッキを施す。   Finally, conductive plating is applied to the entire surface of the socket contact 1.
なお、上述した製造方法は一例であって、これに限られないことはいうまでもない。   Needless to say, the manufacturing method described above is merely an example, and the present invention is not limited thereto.
また、図1−図5では一対の接触片を有する双子接触片タイプのソケットコンタクト1について説明したが、図6に示す第2の実施形態のように1つの接触片からなる片持梁タイプのコンタクト14にも適用できる。   Moreover, although the twin contact piece type socket contact 1 which has a pair of contact piece was demonstrated in FIGS. 1-5, like the 2nd Embodiment shown in FIG. 6, the cantilever type which consists of one contact piece is shown. It can also be applied to the contact 14.
図6において、複数のコンタクト14が絶縁性のハウジング15に片持梁的に保持されている。コンタクト14は、図1−図5を用いて説明したソケットコンタクト1の接触片2と同等な接触片2´を有している。即ち、接触片2´も、湾曲部4の内側の左右エッジ部分5を潰すことで突起状の接点部8を形成し、かつ、接点部8の間を接触部9としている。   In FIG. 6, a plurality of contacts 14 are held in a cantilever manner on an insulating housing 15. The contact 14 has a contact piece 2 ′ equivalent to the contact piece 2 of the socket contact 1 described with reference to FIGS. 1 to 5. That is, the contact piece 2 ′ also forms a protruding contact portion 8 by crushing the left and right edge portions 5 inside the curved portion 4, and a contact portion 9 is formed between the contact portions 8.
なお、上述では特定の実施形態を用いて説明したが、様々な変形が可能なことはいうまでもない。   In addition, although it demonstrated using the specific embodiment above, it cannot be overemphasized that various deformation | transformation are possible.
本発明の第1の実施形態に係るコンタクトとしてのソケットコンタクトの斜視図である。It is a perspective view of the socket contact as a contact which concerns on the 1st Embodiment of this invention. 図1のソケットコンタクトの要部のみを示す拡大斜視図である。It is an expansion perspective view which shows only the principal part of the socket contact of FIG. 図2のIII−III線に沿って得られた断面図である。It is sectional drawing obtained along the III-III line of FIG. 図3の要部拡大図である。It is a principal part enlarged view of FIG. 図1のソケットコンタクトの接続相手となるピンコンタクトを接続させた状態の断面図である。It is sectional drawing of the state which connected the pin contact used as the connection partner of the socket contact of FIG. 本発明の第2の実施形態に係るコンタクトを用いたコネクタのの斜視図である。It is a perspective view of the connector using the contact which concerns on the 2nd Embodiment of this invention.
符号の説明Explanation of symbols
1 ソケットコンタクト
2, 2´ 接触片
3 連結片
4 湾曲部
5 エッジ部分
6 凹部
7 エッジ部分
8 接点部
9 接触部
10 ピンコンタクト
11 せん断面
12 破断面
13 バリ
14 コンタクト
15 ハウジング
DESCRIPTION OF SYMBOLS 1 Socket contact 2, 2 'Contact piece 3 Connection piece 4 Bending part 5 Edge part 6 Recessed part 7 Edge part 8 Contact part 9 Contact part 10 Pin contact 11 Shear surface 12 Broken surface 13 Burr 14 Contact 15 Housing

Claims (6)

  1. 金属板を打ち抜くことにより形成された湾曲部を有するコンタクトにおいて、前記湾曲部の内側のエッジ部分を潰し、これにより前記湾曲部の外側のエッジ部分を外側に向けて突出させて突起状接点部を形成したことを特徴とするコンタクト。   In a contact having a curved portion formed by punching a metal plate, the inner edge portion of the curved portion is crushed, thereby projecting the outer edge portion of the curved portion toward the outer side to form a protruding contact portion. A contact characterized by being formed.
  2. 前記湾曲部を含む接触片を有し、前記湾曲部は前記接触片の一面側に膨出するように曲げ形成されている、請求項1に記載のコンタクト。   The contact according to claim 1, further comprising a contact piece including the curved portion, wherein the curved portion is bent so as to bulge to one surface side of the contact piece.
  3. 前記接触片は、前記一面側が打ち抜きダレ面、他面側が打ち抜き面で構成されている、請求項2のいずれかに記載のコンタクト。   The contact according to claim 2, wherein the one surface side is formed by a punched sag surface and the other surface side is formed by a punched surface.
  4. 前記接触片を一対有し、該一対の接触片は互いに対向しかつ端部を連結片で一体に連結されている、請求項2又は3に記載のコンタクト。   The contact according to claim 2 or 3, wherein the contact piece includes a pair of contact pieces, the pair of contact pieces face each other, and ends thereof are integrally connected by a connecting piece.
  5. 前記エッジ部分は面打ち加工により潰されている、請求項1−4のいずれかに記載のコンタクト。   The contact according to claim 1, wherein the edge portion is crushed by a surface punching process.
  6. 前記湾曲部の外面が接触部とされ、前記突起状接点部は前記接触部の両側に夫々形成されている、請求項1−5のいずれかに記載のコンタクト。   The contact according to claim 1, wherein an outer surface of the curved portion is a contact portion, and the protruding contact portions are formed on both sides of the contact portion, respectively.
JP2008310572A 2008-12-05 2008-12-05 Contact Pending JP2010135196A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013143186A (en) * 2012-01-06 2013-07-22 Mitsubishi Electric Corp Connector device
JP2013229333A (en) * 2012-04-25 2013-11-07 Kunshan Jiahua Electronics Co Ltd Electrical connector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959480U (en) * 1982-10-12 1984-04-18
JPH01166970U (en) * 1988-05-13 1989-11-22

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5959480U (en) * 1982-10-12 1984-04-18
JPH01166970U (en) * 1988-05-13 1989-11-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013143186A (en) * 2012-01-06 2013-07-22 Mitsubishi Electric Corp Connector device
JP2013229333A (en) * 2012-04-25 2013-11-07 Kunshan Jiahua Electronics Co Ltd Electrical connector

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