JPWO2008001459A1 - Contact structure of electrical connector - Google Patents

Contact structure of electrical connector Download PDF

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Publication number
JPWO2008001459A1
JPWO2008001459A1 JP2008522262A JP2008522262A JPWO2008001459A1 JP WO2008001459 A1 JPWO2008001459 A1 JP WO2008001459A1 JP 2008522262 A JP2008522262 A JP 2008522262A JP 2008522262 A JP2008522262 A JP 2008522262A JP WO2008001459 A1 JPWO2008001459 A1 JP WO2008001459A1
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Prior art keywords
contact
shape
electrical connector
female
male
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JP4961424B2 (en
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渡邉　慎司
慎司 渡邉
丸石　理敏
理敏 丸石
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Honda Tsushin Kogyo Co Ltd
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Honda Tsushin Kogyo Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/20—Pins, blades, or sockets shaped, or provided with separate member, to retain co-operating parts together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
    • H01R12/714—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2442—Contacts for co-operating by abutting resilient; resiliently-mounted with a single cantilevered beam
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H01R13/2464—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the contact point

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

要約電気コネクタにおけるプラグ側の雄コンタクト(3)の接触箇所と、レセプタクル側の雌コンタクト(1または2)との接触箇所との一方に凸部(3a)を形成すると共に、他方の接触領域の接触側表面に、直線状の溝(1c、1dまたは2c、2d)が十字型(1c、1d)、Ｘ型(2c、2d)若しくはＶ型(2f)に交差してなる凹部を形成している。これによってコンタクトの接触が交差部における角部による点接触となるため、接触面における応力度が倍増して電気的接触を確実にするのみならず、コンタクト同士の摩擦による接触抵抗力が減るため、挿抜操作を容易にすることができる。In the electrical connector, a convex portion (3a) is formed at one of the contact point of the plug-side male contact (3) and the contact point of the receptacle-side female contact (1 or 2), and the other contact region On the contact side surface, a concave portion is formed in which a linear groove (1c, 1d or 2c, 2d) intersects the cross shape (1c, 1d), X type (2c, 2d) or V type (2f). Yes. As a result, the contact of the contact becomes a point contact due to the corner portion at the intersection, so that not only the stress degree at the contact surface is doubled to ensure electrical contact, but also the contact resistance due to friction between the contacts is reduced, The insertion / extraction operation can be facilitated.

Description

本発明は、小型で低背の電気コネクタにおけるコンタクトの接触構造に関するものである。   The present invention relates to a contact structure of a small and low-profile electrical connector.

電気コネクタにおけるプラグ側の雄コンタクトとレセプタクル側の雌コンタクトとの電気的接触を確実なものにして、コンタクト同士の接触の信頼性を向上させる構造としては、図１５に示されるような、曲面形状の接触面を有するコンタクトと平坦形状の接触面を有するコンタクトとの組合せ構造、あるいは、特開２００５−３３２６５８に開示されたような、矩形状の接触領域を有するコンタクトと溝部を有するコンタクトとの組合せにおいて、矩形状の接触領域が溝部内の傾斜面に摺接するようにした構造や、図１６Ａ、図１６Ｂに示されるような、一方のコンタクトの接触領域に、プラグの差込方向に沿ったＶ字形状の溝部を設けると共に、他方のコンタクトに曲面状の接触凸部を設けて、該接触凸部が前記溝部内の傾斜面あるいは溝の開口縁に摺接する構造（例えば特開２００４−３０３７４３を参照）が知られている。このような構造により、接触箇所12の接触圧力を高めると共に、コンタクト間の面接触あるいは線接触において、その接触面の間に塵埃等が侵入することによって電気的接触が不確実になることを防止するものである。   As a structure for ensuring the electrical contact between the male contact on the plug side and the female contact on the receptacle side in the electrical connector and improving the reliability of contact between the contacts, a curved surface shape as shown in FIG. Or a contact structure having a flat contact surface, or a combination of a contact having a rectangular contact area and a contact having a groove, as disclosed in JP-A-2005-332658 In the structure, the rectangular contact region is in sliding contact with the inclined surface in the groove, and the contact region of one contact as shown in FIG. 16A and FIG. And a curved contact protrusion on the other contact, the contact protrusion being an inclined surface in the groove or Of the opening edge in sliding contact with the structure (see, for example JP 2004-303743) is known. With such a structure, the contact pressure at the contact point 12 is increased, and electrical contact is prevented from becoming uncertain due to intrusion of dust or the like between the contact surfaces in contact or line contact between the contacts. To do.

しかしながら、図１７Ａ、図１７Ｂおよび図１７Ｃに示すような雌コンタクト11が、電子機器の軽薄短小化に伴って極小化されて多数電気コネクタに装着されると、コンタクト間の電気的接続を確実にするのが困難なことがある。すなわち、例えば、ケーブルのプリント基板への接続等において、雄コンタクトと雌コンタクトの接触圧力Pが一定の場合に、コンタクト間の電気的接続を確実にするためには、接触する面積Aを小さくして、応力度（σ＝P/A、単位：N/mm2）を大きくすることが効果的である。しかし、従来の雌コンタクト11の接触領域11aにおける接触を点接触に近づけるべく、曲げ加工やプレス加工によって、長手方向に対して板厚方向に屈曲したり、長手方向に垂直な横断面において接触面中央部が突状となるような曲面形状に形成しようとしても、設計上及び製造上の都合から、長手方向の曲面における曲率半径R1や幅方向の曲面における曲率半径R2の大きなもの、例えば長手方向の曲面における曲率半径では、R1＝0.16mm程度のものしかできず、限界があった。また、上記従来技術における溝等を形成したコンタクト間の接触も、数箇所における線接触であって、単位面積当たりの接触応力乃至は接触圧力において、満足の得られるものではなかった。However, when the female contacts 11 as shown in FIGS. 17A, 17B, and 17C are miniaturized as the electronic equipment is reduced in size and attached to a large number of electrical connectors, electrical connection between the contacts is surely ensured. It can be difficult to do. That is, for example, when the contact pressure P between the male contact and the female contact is constant when connecting the cable to the printed circuit board, the contact area A is reduced in order to ensure electrical connection between the contacts. Therefore, it is effective to increase the degree of stress (σ = P / A, unit: N / mm 2 ). However, in order to bring the contact in the contact area 11a of the conventional female contact 11 closer to a point contact, the contact surface is bent in the plate thickness direction with respect to the longitudinal direction by bending or pressing, or in a cross section perpendicular to the longitudinal direction. Even if trying to form a curved surface shape that has a projecting central part, for the sake of design and manufacturing convenience, those having a large radius of curvature R 1 on the curved surface in the longitudinal direction and a radius of curvature R 2 on the curved surface in the width direction, for example The radius of curvature of the curved surface in the longitudinal direction was limited to only about R 1 = 0.16 mm. Further, the contact between the contacts formed with grooves or the like in the above-described prior art is also a line contact at several places, and the contact stress or contact pressure per unit area is not satisfactory.

そこで、本発明の電気コネクタにおけるコンタクトの接触構造はこのような従来の問題点を解決してコンタクトの接触領域における接触を点接触として、単位面積当たりの接触応力乃至は接触圧力を大きくしてコンタクト間の電気的接続を確実にするとともに、接触領域におけるコンタクトの弾性力と摺接方向の摩擦による接触抵抗力（F＝P・μ、μは摩擦係数）を小さくして磨耗を極力防止したコンタクトの接触構造を提供することを目的とするものである。   Therefore, the contact structure of the contact in the electrical connector of the present invention solves such a conventional problem, and the contact in the contact area of the contact is point contact, and the contact stress or contact pressure per unit area is increased. In addition to ensuring the electrical connection between the contacts, the contact resistance in the contact area and the contact resistance due to friction in the sliding direction (F = P · μ, μ is the coefficient of friction) are reduced to prevent wear as much as possible. It is an object to provide a contact structure.

本発明に係る電気コネクタにおけるコンタクトの接触構造は、コネクタレセプタクルに固定して併設される複数個の雌コンタクトと、該コネクタレセプタクルに嵌合するコネクタプラグに該雌コンタクトの位置に対応して固定し併設される複数個の雄コンタクトとの接触構造において、該雌雄コンタクトの内の一方のコンタクトの接触領域は、該コンタクトの長手方向においてコンタクト基部から一体にして支持されるとともに、該コンタクトの長手方向に対して板厚方向に屈曲することにより接触側に向けて凸状に形成され、且つ、該接触領域の接触側表面に、直線状の溝が十字型、Ｘ型若しくはＶ型に交差してなる凹部が形成されたものとした。   The contact contact structure of the electrical connector according to the present invention includes a plurality of female contacts fixedly attached to the connector receptacle, and fixed to a connector plug fitted to the connector receptacle corresponding to the position of the female contact. In the contact structure with a plurality of male contacts provided side by side, the contact region of one of the male and female contacts is integrally supported from the contact base in the longitudinal direction of the contact, and the longitudinal direction of the contact Is formed in a convex shape toward the contact side by bending in the plate thickness direction, and a linear groove intersects the cross shape, X shape or V shape on the contact side surface of the contact region. It was assumed that a recess was formed.

また、直線状の溝が十字型、Ｘ型若しくはＶ型に交差してなる該凹部は、その直線状の溝の内の少なくとも一つの溝がコンタクトの幅方向において全幅に至って形成されていることが好ましい。
また、該雌雄コンタクトの内の一方のコンタクトの接触領域は、接触側が突出するように少なくとも長手方向に沿って曲げられた曲面形状に形成されることが好ましく、さらには長手方向及び幅方向に沿ってそれぞれ曲げられた曲面形状に形成されることがより好ましい。
更に、前記十字型、Ｘ型若しくはＶ型の凹部の交差部分は、コンタクトの幅方向において中央に位置していることが好ましい。Further, the concave portion formed by intersecting the linear groove with the cross shape, the X shape or the V shape is formed so that at least one of the linear grooves reaches the full width in the contact width direction. Is preferred.
The contact area of one of the male and female contacts is preferably formed in a curved shape bent along at least the longitudinal direction so that the contact side protrudes, and further along the longitudinal direction and the width direction. It is more preferable that each of the curved shapes is bent.
Furthermore, it is preferable that the intersecting portion of the cross-shaped, X-shaped, or V-shaped recess is located in the center in the width direction of the contact.

本発明に係る電気コネクタにおけるコンタクトの接触構造によれば、コネクタプラグの雄コンタクトとコネクタレセプタクルの雌コンタクトの内、一方のコンタクトの接触領域は、他方のコンタクトの接触領域に接触する側の表面に、直線状の溝が十字型、Ｘ型若しくはＶ型に交差してなる凹部が形成されているので、交差部分の角部による点接触となる。理論上、十字型およびＸ型の凹部の場合は４つの角部による点接触となり、Ｖ型の凹部の場合は１つの角部による点接触となる。そのため、その接触面積は、上記従来例の場合より極めて小さく、実際の接触角部を曲率半径に換算してみると、例えば、曲率半径R＝0.03mm程度に形成された曲面と同等になり、単位面積当たりの接触応力乃至は接触圧力が高まり、電気的接続の信頼性が向上する。なお、摩擦による接触抵抗力Ｆは、応力度σを従来と同じに設定すれば、接触面積Aが小さくなった分だけ接触圧力Pを小さくすることができる。それによって、接触圧力Pを小さくすれば、接触抵抗力Fも従来のよりも小さくなるため、コンタクトの挿抜が容易となり耐磨耗性が向上する。   According to the contact contact structure in the electrical connector according to the present invention, the contact region of one contact of the male contact of the connector plug and the female contact of the connector receptacle is on the surface on the side in contact with the contact region of the other contact. Since the concave portion formed by intersecting the linear groove with the cross shape, the X shape or the V shape is formed, the point contact is caused by the corner of the intersecting portion. Theoretically, in the case of a cruciform and an X-shaped recess, point contact is made by four corners, and in the case of a V-shaped recess, point contact is made by one corner. Therefore, the contact area is extremely smaller than in the case of the above-described conventional example, and the actual contact angle portion is equivalent to a curved surface formed with a curvature radius R of about 0.03 mm, for example, Contact stress or contact pressure per unit area is increased, and the reliability of electrical connection is improved. In addition, the contact resistance force F by friction can reduce the contact pressure P as much as the contact area A is reduced if the stress degree σ is set to be the same as the conventional one. Accordingly, if the contact pressure P is reduced, the contact resistance force F is also reduced as compared with the conventional case, so that the contact can be easily inserted and removed, and the wear resistance is improved.

また、該凹部における直線状の溝の内の少なくとも一つの溝が、コンタクトの幅方向において全幅に至って形成されているので、コンタクトの挿抜時における摺接作用において、コンタクト表面に付着した塵埃等がワイピング作用でこの凹部に落ち込んで、コンタクトの幅方向に排除される。よって、接触領域に入り込んだ塵埃等が、接触箇所にこびりついて付着することなく、外部に排除され、接触箇所がきれいに掃除されて、塵埃等のない状態が維持される。   In addition, since at least one of the linear grooves in the concave portion is formed to reach the full width in the width direction of the contact, dust or the like adhering to the contact surface is caused in the sliding contact action when the contact is inserted or removed. The wiping action falls into this recess and is eliminated in the contact width direction. Therefore, the dust or the like that has entered the contact area is removed to the outside without sticking to the contact location, and the contact location is cleaned cleanly, and a state free of dust or the like is maintained.

なお、雄コンタクトはケーブルにハンダ付けされる際のフラックスが付着しやすいだけでなく、外部に突出している雄コンタクトの方が雌コンタクトよりも塵埃等の異物が付着しやすいので、雄コンタクトに付着したフラックスや異物を雌コンタクトの接触箇所で排除できるように、雌コンタクトの接触領域に該凹部を設けるようにすれば、その凹部の縁部がナイフエッジのように働き、効果的に異物を排除することができる。   Note that the male contact not only tends to adhere to the flux when soldered to the cable, but the male contact protruding to the outside is more likely to adhere foreign matter such as dust than the female contact, so it adheres to the male contact. If the concave part is provided in the contact area of the female contact so that the flux and foreign matter removed can be eliminated at the contact point of the female contact, the edge of the concave part works like a knife edge, effectively eliminating the foreign substance. can do.

更に、該雌雄コンタクトの内の一方のコンタクトの接触領域は、接触側が突出するように少なくとも長手方向に沿って曲面形状に形成されることによって、コンタクトの接触領域の応力度を更に高めることになる。また、該凹部における直線溝の交差部分が、コンタクトの幅方向において中央に位置しているので、接触領域に侵入した塵埃等が、コンタクトの幅方向に向けて振り分けられ、迅速且つ確実に排除されて、接触領域に滞留することがない。   Furthermore, the contact area of one of the male and female contacts is formed in a curved shape at least along the longitudinal direction so that the contact side protrudes, thereby further increasing the degree of stress in the contact area of the contact. . In addition, since the intersection of the straight grooves in the recess is located in the center in the width direction of the contact, dust or the like that has entered the contact area is distributed in the width direction of the contact, and is quickly and reliably eliminated. And does not stay in the contact area.

本発明に係る電気コネクタの第１実施例におけるコンタクト接触構造を示すの斜視図である。It is a perspective view which shows the contact contact structure in 1st Example of the electrical connector which concerns on this invention. 同第１実施例におけるコンタクトの側面図である。It is a side view of the contact in the 1st Example. 同第１実施例におけるコンタクトの平面図である。It is a top view of the contact in the 1st Example. 同第１実施例におけるコンタクトの正面図である。It is a front view of the contact in the 1st Example. 同第１実施例におけるコンタクトの、図２ＣにおけるＡ−Ａ線に沿った断面図である。It is sectional drawing along the AA in FIG. 2C of the contact in the said 1st Example. 本発明に係る電気コネクタの第２実施例におけるコンタクトの接触構造を示す斜視図である。It is a perspective view which shows the contact structure of the contact in 2nd Example of the electrical connector which concerns on this invention. 同第２実施例におけるコンタクトの側面図である。It is a side view of the contact in the said 2nd Example. 同第２実施例におけるコンタクトの平面図である。It is a top view of the contact in the 2nd Example. 同第２実施例におけるコンタクトの正面図である。It is a front view of the contact in the said 2nd Example. 同第２実施例におけるコンタクトの、図４ＣにおけるＢ−Ｂ線に沿った断面図である。It is sectional drawing along the BB line in FIG. 4C of the contact in the said 2nd Example. コンタクト端子材料に、コンタクトの接触領域で交差する溝からなる凹部を形成する方法を説明するための工程図である。It is process drawing for demonstrating the method to form the recessed part which consists of the groove | channel which cross | intersects in the contact region of a contact terminal material. 接触領域にＶ型凹部を形成したコンタクトの第1の態様例を示す正面図である。It is a front view which shows the 1st example of a form of the contact which formed the V-shaped recessed part in the contact area. 接触領域にＶ型凹部を形成したコンタクトの第２の態様例を示す正面図である。It is a front view which shows the 2nd example of a contact which formed the V-shaped recessed part in the contact area. 接触領域にＶ型凹部を形成したコンタクトの第３の態様例を示す正面図である。It is a front view which shows the 3rd example of a contact which formed the V-shaped recessed part in the contact area. 幅方向に沿って形成された曲面形状の接触面を有する雌コンタクトの横断面図である。It is a cross-sectional view of a female contact having a curved contact surface formed along the width direction. 雌コンタクトの幅方向に沿って形成された曲面形状の接触面を形成する方法を示す説明図である。It is explanatory drawing which shows the method of forming the curved-surface-shaped contact surface formed along the width direction of a female contact. コンタクトの接触領域における幅方向の傾きに関する接触状態を説明するための横断面図である。It is a transverse cross section for explaining the contact state about the inclination of the width direction in the contact field of a contact. コンタクトの幅方向に関する接触領域におけるずれに関する接触状態を説明するための横断面図である。It is a cross-sectional view for explaining a contact state relating to a shift in a contact region in the contact width direction. コンタクトの凹部の交差部における角部を示す一部拡大断面図である。It is a partially expanded sectional view which shows the corner | angular part in the intersection part of the recessed part of a contact. コネクタレセプタクルを示す正面図である。It is a front view which shows a connector receptacle. 同上コネクタレセプタクルを示す平面図である。It is a top view which shows a connector receptacle same as the above. 同上コネクタレセプタクルを示す側面図である。It is a side view which shows a connector receptacle same as the above. 図１０ＢのＣ−Ｃ線に沿った断面図である。It is sectional drawing along CC line of FIG. 10B. コネクタプラグを、その半分をシェル無しにして示す平面図である。It is a top view which shows a connector plug with the half without a shell. 同上コネクタプラグを示す側面図である。It is a side view which shows a connector plug same as the above. 同上コネクタプラグを示す正面図である。It is a front view which shows a connector plug same as the above. 同上コネクタプラグを示す底面図である。It is a bottom view which shows a connector plug same as the above. 図１１ＣにおけるＤ−Ｄ線に沿った断面図である。It is sectional drawing along the DD line in FIG. 11C. 雄コンタクトの正面図である。It is a front view of a male contact. 同上雄コンタクトの平面図である。It is a top view of a male contact same as the above. 同上コネクタプラグとコネクタレセプタクルとの嵌合状態における接触領域の状態を示す断面図である。It is sectional drawing which shows the state of the contact area in the fitting state of a connector plug and a connector receptacle same as the above. 図１３Ａにおける接触領域の拡大断面図である。It is an expanded sectional view of a contact field in Drawing 13A. 同上コネクタプラグとコネクタレセプタクルとの嵌合に際してコネクタプラグが傾いた状態を示す断面図である。It is sectional drawing which shows the state in which the connector plug inclined when the connector plug same as the above and the connector receptacle were fitted. 図１４Ａにおける接触領域を示す拡大断面図である。It is an expanded sectional view which shows the contact area | region in FIG. 14A. 従来例に係るコンタクト同士の接触状態を示す断面図である。It is sectional drawing which shows the contact state of the contacts which concern on a prior art example. 従来のコネクタにおけるコンタクトの接触状態を示す断面図である。It is sectional drawing which shows the contact state of the contact in the conventional connector. 従来の他のコネクタにおけるコンタクトの接触状態を示す断面図である。It is sectional drawing which shows the contact state of the contact in the other conventional connector. 従来例に係る電気コネクタのコンタクトを示す斜視図である。It is a perspective view which shows the contact of the electrical connector which concerns on a prior art example. 同上コンタクトを示す側面図である。It is a side view which shows a contact same as the above. 同上コンタクトを示す横断面図である。It is a cross-sectional view which shows a contact same as the above.

本発明に係る電気コネクタは、コネクタレセプタクルとコネクタプラグとからなる電気コネクタであって、例えば、図１３Ａに示すように雌コンタクト1または2を有するコネクタレセプタクル4に、雄コンタクト3を有するコネクタプラグ6を接続するものである。図１〜図２Ｄは本発明に係る電気コネクタの第１実施例に係る雌コンタクト1の接触構造を示す。雌コンタクト1の接触領域1aは、該コンタクト1の長手方向においてコンタクト基部1bから複数回に屈曲されて弾性的に一体にして支持されるとともに、長手方向に沿って屈曲することにより接触側に向けて凸状となるように形成され、且つ、該接触領域1aの接触側表面に溝1c、1dからなる十字型の凹部が形成されている。   The electrical connector according to the present invention is an electrical connector composed of a connector receptacle and a connector plug. For example, as shown in FIG. 13A, a connector plug 6 having a male contact 3 on a connector receptacle 4 having a female contact 1 or 2. Are connected. 1 to 2D show a contact structure of a female contact 1 according to a first embodiment of an electrical connector according to the present invention. The contact region 1a of the female contact 1 is bent from the contact base 1b a plurality of times in the longitudinal direction of the contact 1 and is elastically integrated and supported, and is bent toward the contact side by bending along the longitudinal direction. And a cruciform recess formed of grooves 1c and 1d is formed on the contact side surface of the contact region 1a.

図３〜図４Ｄに示すように、本発明に係る電気コネクタの第２実施例の雌コンタクト2では、接触領域2aにおいて、Ｘ型に交差する溝2c、2dからなる凹部が形成されている。また、第３実施例では、図６Ａ〜図６Ｃの第１〜第３の具体例に示すように、Ｖ型（図中において上下逆の場合もあり）に交差する凹部2fが形成されている。   As shown in FIGS. 3 to 4D, in the female contact 2 of the second embodiment of the electrical connector according to the present invention, in the contact region 2a, a recess composed of grooves 2c and 2d intersecting with the X shape is formed. Further, in the third embodiment, as shown in the first to third specific examples of FIGS. 6A to 6C, a recess 2f that intersects with a V shape (in some cases, upside down in the drawing) is formed. .

十字型、Ｘ型若しくはＶ型の上記凹部において、少なくとも、溝1cまたは2c、あるいは、凹部2fが、コンタクト1または2の幅方向において全幅に至って形成されている。前記Ｘ型の凹部の溝2c、2d、及び、Ｖ型の凹部2fは、コンタクト2の全幅に亘って形成され、全ての端部がコンタクトの側部外方に開放されている。   In the cross-shaped, X-shaped or V-shaped concave portion, at least the groove 1c or 2c or the concave portion 2f is formed to reach the entire width in the width direction of the contact 1 or 2. The X-shaped recess grooves 2c and 2d and the V-shaped recess 2f are formed over the entire width of the contact 2, and all end portions are open to the outside of the side of the contact.

これは、塵埃等を確実に凹部や溝から外部に排除するためである。例えば、塵埃等がコネクタプラグ6の雄コンタクト3の側に付着すると、電気的接続のためにコネクタプラグ6をコネクタレセプタクル4に嵌合する際に、該雌コンタクト1または2との摺接によるワイピング作用で塵埃等が掃除されて該溝1c、1d若しくは溝2c、2d、あるいは凹部2fに落ち込む。このときに、該凹部がコンタクト1または2の全幅に亘って形成されると共に、該凹部の端部が側部外方に開放されていない場合は、接触領域から外部へと排出されずに、溜まってしまうことになる。それを避けるために、コンタクトの幅方向において外部へ塵埃等が排出されるように、コンタクトの全幅に亘り凹部を形成して、コンタクトの側壁部に至るまで連通して開口されている。   This is to reliably remove dust and the like from the recesses and grooves to the outside. For example, when dust or the like adheres to the male contact 3 side of the connector plug 6, wiping by sliding contact with the female contact 1 or 2 when the connector plug 6 is fitted to the connector receptacle 4 for electrical connection. The dust or the like is cleaned by the action and falls into the grooves 1c and 1d or the grooves 2c and 2d or the recess 2f. At this time, the recess is formed over the entire width of the contact 1 or 2, and if the end of the recess is not open to the outside of the side, without being discharged from the contact area to the outside, It will accumulate. In order to avoid this, a recess is formed over the entire width of the contact so that dust and the like are discharged to the outside in the width direction of the contact, and the contact is opened up to the side wall of the contact.

該雌コンタクトの接触領域1a、2aにおける凹部を形成する方法は、例えば、Ｘ型の凹部で説明すると、図５に示すように、コンタクト端子材料5を準備し、まず、コンタクト端子材料5の表面に溝5aを形成し、図に示すごとく、溝5aに交差するように溝5bを形成する。この溝5a、5bは、実際に必要な長さよりも長く形成しておく。そして、スリット5c、5dを入れることによって所要の幅にカットする。その後、その所要の幅にカットされたコンタクト端子材料に対して、曲げ加工等を行うことによって雌コンタクトに2に形成される。   The method of forming the recesses in the contact areas 1a and 2a of the female contact is described by using, for example, an X-shaped recess. As shown in FIG. 5, a contact terminal material 5 is prepared. The groove 5a is formed in the groove 5b, and as shown in the figure, the groove 5b is formed so as to intersect the groove 5a. The grooves 5a and 5b are formed longer than actually required. Then, the slits 5c and 5d are cut to a required width. Thereafter, the contact terminal material cut to the required width is formed into a female contact 2 by bending or the like.

なお、図６Ａ〜図６Ｃに示すようなＶ型に交差してなる凹部2fを形成する場合には、その凹部2fに対応するＶ型の突起を設けた金型を用いて、雌コンタクトを一度に形成する場合もある。更に、コンタクトの接触領域1a、2aにおいて、長手方向に対して板厚方向（摺動方向）に曲率半径R1の曲面に曲げる際に、同時にこの凹部1c、1d、2c、2d、2fを形成しても良い。6A to 6C, when the concave portion 2f intersecting with the V shape is formed, the female contact is once formed using a mold provided with a V-shaped projection corresponding to the concave portion 2f. In some cases, it is formed. Further, in the contact areas 1a and 2a of the contact, when the curved portion having the curvature radius R 1 is bent in the plate thickness direction (sliding direction) with respect to the longitudinal direction, the concave portions 1c, 1d, 2c, 2d and 2f are formed at the same time. You may do it.

前記雌雄コンタクトの内の一方、例えば、雌のコンタクト1、2の接触領域1a、2aは、図７Ａに示すように、接触側の表面が幅方向に沿って外側に凸状となる半径R2の曲面形状に形成されている。この形成方法は、図７Ｂに示すように、板厚方向のプレスによる圧縮成形加工による。なお、この接触領域の長手方向の屈曲は、曲げ加工で行うものである。このようにして、コンタクトの接触領域に、十字型、Ｘ型、Ｖ型の凹部を形成する。As shown in FIG. 7A, one of the male and female contacts, for example, contact areas 1a and 2a of the female contacts 1 and 2 has a radius R 2 whose surface on the contact side is convex outward in the width direction. It is formed in the curved surface shape. As shown in FIG. 7B, this forming method is based on compression molding by pressing in the plate thickness direction. The bending of the contact area in the longitudinal direction is performed by bending. In this manner, a cross-shaped, X-shaped, and V-shaped recess is formed in the contact area of the contact.

十字型の該凹部1c、1d、若しくは、Ｘ型、Ｖ型に交差する凹部2c、2d、2fの交差部分は、コンタクト1、2の幅方向において中央に位置している。これは、十字型等の凹部で形成された接触領域1aが、図８Ａに示すように、相手側の接触領域に対して左右どちらかに傾いて接触した場合でも、当該凹部または溝の縁部うちの少なくとも１箇所において接触を確保するためである。また、図８Ｂに示すように、コネクタの嵌合時に、雌雄コンタクトの接触領域がコンタクト板幅方向にずれた場合でも、ある程度のマージンを持たせるためである。更に、接触領域1a、2aを板厚方向（摺動方向）と板幅方向とに、曲げ加工や圧縮成形加工をしやすくするためである。   The cross-shaped concave portions 1c, 1d or the intersecting portions of the concave portions 2c, 2d, 2f intersecting the X-type and V-type are located in the center in the width direction of the contacts 1, 2. This is because even if the contact area 1a formed by a concave portion such as a cross-shaped contact is tilted to the left or right with respect to the other contact area, as shown in FIG. This is to ensure contact at at least one of them. Further, as shown in FIG. 8B, even when the contact area of the male and female contacts is shifted in the contact plate width direction when the connector is fitted, a certain margin is provided. Furthermore, this is because the contact regions 1a and 2a are easily bent and compression-molded in the plate thickness direction (sliding direction) and the plate width direction.

ところで、接触領域1a、2aに、十字型やＸ型、Ｖ型の凹部を形成した該雌コンタクト1、2と、上述した従来例とを比較してみると、例えば、接触応力においては従来例が3038（N/mm2）であり、本発明では5620（N/mm2）だり、約1.85倍であった。このように、接触領域において、図９に示すように、交差する二つの凹部の交差部における角部1fの接触が点接触となり、接触面積が極めて小さくなるため、単位面積当たりの接触応力乃至は接触圧力が倍増する。また、接触領域の応力度が増加する分、コンタクトの弾性力による押圧力を低減させるように設定することができる。即ち、雌雄コンタクト同士の摩擦による接触抵抗力Ｆを減らすように設定してコネクタの挿抜における抵抗力が減少させれば、コネクタレセプタクルからコネクタプラグを外す挿抜操作が容易になる。By the way, when comparing the above-described conventional example with the female contacts 1 and 2 in which the cross-shaped, X-type and V-type concave portions are formed in the contact regions 1a and 2a, for example, in the contact stress, the conventional example Is 3038 (N / mm 2 ), which is 5620 (N / mm 2 ) in the present invention, which is about 1.85 times. In this way, in the contact region, as shown in FIG. 9, the contact of the corner 1f at the intersection of two intersecting recesses becomes a point contact, and the contact area becomes extremely small. Contact pressure doubles. Moreover, it can set so that the pressing force by the elastic force of a contact may be reduced by the increase in the stress degree of a contact area. That is, if the contact resistance force F caused by the friction between the male and female contacts is set to be reduced to reduce the resistance force during connector insertion / extraction, the insertion / extraction operation for removing the connector plug from the connector receptacle becomes easy.

このような雌コンタクト1または2を、図１０Ａ〜図１０Ｄに示すように、コネクタレセプタクル4のコンタクト収納部に複数個圧入して併設する。また、図１１Ａ〜図１１Ｅに示すように、雄コンタクト3は、コネクタプラグ6のコンタクト収納部に複数個一体成形により併設する。   As shown in FIGS. 10A to 10D, a plurality of such female contacts 1 or 2 are press-fitted into the contact storage portion of the connector receptacle 4 and provided. Further, as shown in FIGS. 11A to 11E, a plurality of male contacts 3 are provided in the contact housing portion of the connector plug 6 by integral molding.

前記雄コンタクト3は、図１１Ｅ、図１２Ａ、図１２Ｂに示すように、その接触領域の下部に、一方のコンタクト（雌コンタクト1、2）に向かって突出する突起3aが設けられている。この突起3aを形成することによって、図１３Ａ、図１３Ｂ、図１４Ａ、図１４Ｂに示すように、コネクタレセプタクル4にコネクタプラグ6を嵌合させた状態において、摺動方向に振動及び衝撃が加わった時、一方のコンタクトである雌コンタクト1、2の先端部1e、2eと接触領域1a、2aとの間で該突起3aが引っ掛って、コンタクト同士の嵌合が外れないようにロックされるものである。   As shown in FIGS. 11E, 12A, and 12B, the male contact 3 is provided with a protrusion 3a that protrudes toward one of the contacts (female contacts 1 and 2) at the bottom of the contact area. By forming the protrusion 3a, vibration and impact were applied in the sliding direction in the state where the connector plug 6 was fitted to the connector receptacle 4 as shown in FIGS. 13A, 13B, 14A, and 14B. At this time, the protrusion 3a is caught between the tips 1e, 2e of the female contacts 1, 2 which are one contact and the contact areas 1a, 2a, and is locked so that the contacts are not disengaged. It is.

本発明に係る電気コネクタにおけるコンタクトの接触構造は、電気コネクタなどに限らず、例えば、電気スイッチの接触構造等にも応用することができる。   The contact contact structure in the electrical connector according to the present invention is not limited to the electrical connector, and can be applied to, for example, an electrical switch contact structure.

Claims (5)

コネクタレセプタクルに固定して併設される複数個の雌コンタクトと、該コネクタレセプタクルに嵌合するコネクタプラグに該雌コンタクトの位置に対応して固定し併設される複数個の雄コンタクトとの接触構造において、該雌雄コンタクトの内の一方のコンタクトの接触領域は、該コンタクトの長手方向においてコンタクト基部から一体にして支持されるとともに、該コンタクトの長手方向に対して板厚方向に屈曲することにより接触側に向けて凸状に形成され、且つ、該接触領域の接触側表面に、直線状の溝が十字型、Ｘ型若しくはＶ型に交差してなる凹部が形成されていること、
を特徴とする電気コネクタにおけるコンタクトの接触構造。In a contact structure between a plurality of female contacts fixedly attached to a connector receptacle and a plurality of male contacts fixedly attached to a connector plug fitted to the connector receptacle corresponding to the position of the female contact The contact area of one of the male and female contacts is integrally supported from the contact base in the longitudinal direction of the contact and is bent in the plate thickness direction with respect to the longitudinal direction of the contact. A concave portion is formed on the contact side surface of the contact region, and a linear groove intersects with a cross shape, an X shape, or a V shape,
The contact structure of the contact in the electrical connector characterized by this. 直線状の溝が十字型、Ｘ型若しくはＶ型に交差してなる該凹部は、その直線状の溝の内の少なくとも一つの溝がコンタクトの幅方向において全幅に至って形成されていること、
を特徴とする請求項１に記載の電気コネクタにおけるコンタクトの接触構造。The concave portion formed by intersecting the linear groove with a cross shape, an X shape or a V shape has at least one of the linear grooves formed so as to reach the full width in the width direction of the contact.
The contact structure of the contact in the electrical connector according to claim 1. 前記雌雄コンタクトの内の一方のコンタクトの接触領域は、接触側が突出するように長手方向に沿って曲面形状に形成されたこと、
を特徴とする請求項１または２に記載の電気コネクタにおけるコンタクトの接触構造。The contact area of one of the male and female contacts is formed in a curved shape along the longitudinal direction so that the contact side protrudes,
The contact contact structure in the electrical connector according to claim 1 or 2. 前記雌雄コンタクトの内の一方のコンタクトの接触領域は、接触側が突出するように長手方向及び幅方向に沿ってそれぞれ曲面形状に形成されたこと、
を特徴とする請求項１または２に記載の電気コネクタにおけるコンタクトの接触構造。The contact area of one of the male and female contacts is formed in a curved shape along the longitudinal direction and the width direction so that the contact side protrudes,
The contact contact structure in the electrical connector according to claim 1 or 2. 直線状の溝が十字型、Ｘ型若しくはＶ型に交差してなる該凹部の交差部分は、コンタクトの幅方向において中央に位置すること、
を特徴とする請求項１または２に記載の電気コネクタにおけるコンタクトの接触構造。The intersecting portion of the concave portion in which the linear groove intersects the cross shape, the X shape or the V shape is located in the center in the width direction of the contact;
The contact contact structure in the electrical connector according to claim 1 or 2.
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