CN1192599A - 在高频电缆上安装防水接头的方法 - Google Patents

在高频电缆上安装防水接头的方法 Download PDF

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CN1192599A
CN1192599A CN97108742A CN97108742A CN1192599A CN 1192599 A CN1192599 A CN 1192599A CN 97108742 A CN97108742 A CN 97108742A CN 97108742 A CN97108742 A CN 97108742A CN 1192599 A CN1192599 A CN 1192599A
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conductor
contact
cable
encapsulant
overcoat
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于尔根·希弗尔
托马斯·霍恩
米歇尔·斯坦斯比
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Alcatel Lucent SAS
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Alcatel Alsthom Compagnie Generale dElectricite
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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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205—Sealing means between cable and housing, e.g. grommet
    • 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
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/56—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency specially adapted to a specific shape of cables, e.g. corrugated cables, twisted pair cables, cables with two screens or hollow cables
    • H01R24/566—Hollow cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0521—Connection to outer conductor by action of a nut
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49123—Co-axial cable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing
    • Y10T29/49174—Assembling terminal to elongated conductor
    • Y10T29/49176—Assembling terminal to elongated conductor with molding of electrically insulating material

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  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Cable Accessories (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

提供了一种在高频电缆(1)上安装防水接头(3)的方法,此电缆至少有一个管状的电导体(7),后者被绝缘材料制的外套(10)围绕。首先导体(7)的端部去掉外套(10)。然后将一个套管状金属接触件电接通地固定在导体(7)的这一端。一方面在接触件与导体(7)之间以及另一方面在接触件与外套(10)之间加上密封材料。作为密封材料采用一种至少由两种成分组成的密封材料(15),它在安装好接触件(11、12)后增大它的体积,使得在接触件(11、12)与导体(7)之间以及在接触件(11、12)与外套(10)之间的环形空腔至少在从导体(7)到外套(10)的过渡区被此密封材料填满。

Description

在高频电缆上安装防水接头的方法
本发明涉及一种在高频电缆上安装防水接头的方法，电缆至少有一个管状的电导体，后者被绝缘材料制的外套围绕，按此方法，首先导体的端部除去外套，然后将一个套管状金属接触件电导通地固定在导体的这一端，以及，一方面在接触件与导体之间和另一方面在接触件与外套之间装上密封材料(DE-PS 1943885)。
“高频电缆”，以下简称“HF电缆”，可以是波导管或同轴HF电缆。这种HF电缆的导体或外导体例如用铜制造。它可以设计为光滑的，或设有横向于其纵轴线方向延伸的波纹，通过这种波纹使HF电缆易于弯曲和可以在一个线盘上卷绕大的长度。在HF电缆的导体上所安装的接触件，用来使此HF电缆与另一根HF电缆或一台仪器连接。接触件可例如涉及插塞接头，在同轴HF电缆的情况下它也可以有用于此同轴HF电缆内导体的插销。为了避免由于腐蚀或短路造成接触故障，必须防止水分侵入连接部位。为此，从HF电缆到接触件的过渡区也必须充分密封。
在按前言提及的DE-PS 1943885的已知方法中，在安装接触件时，在接触件与它围绕的部分即导体和外套之间形成的接头的所有空腔内，充填一种粘弹性物质。接触件为此制有多个通道，借助于那些通道将此物质沿导体的整个圆周分布。通过此物质也密封了从外套到裸导体的过渡区。此物质与此同时也充填了凹槽，这些凹槽是在必要时由导体的波纹形成的。通过这种物质阻断了在外套与导体之间的间隙内侵入水分的途径。水分不再能够进入导体与接触件之间的连接部位中。这种已知接头投入的总的费用较高。接触件必须使用带有通道的，以及，粘弹性物质必须采用一种专用工具压入接头的空腔中。
本发明的目的是进一步改进前言所述的方法，以便能用简单的方式达到HF电缆的导体和外套与接触件之间的密封。
按本发明为达到此目的采取的措施是，作为密封材料采用一种至少由两种成分组成的密封材料，它在安装好接触件后增大它的体积，使得在接触件与导体之间以及在接触件与外套之间的环形空腔至少在从导体到外套的过渡区被此密封材料填满。
采用这种方法使得接触件非常容易安装，接触件本身的结构也可以简化。HF电缆的端头按常规的技术处理。为此，在导体的规定长度上除去外套，然后必要时使导体裸露。接着安装套管状接触件，使之与导体有良好的电触点连通。在接触件完成装配后，位于接触件与HF电缆导体和接触件与外套之间的空腔内的密封材料体积增大，使得至少在一个部位处的空腔环形地充满，也就是说在从HF电缆的导体到外套过渡处的关键区。此完成的接头可以保证不会再有任何水分侵入接触件和导体之间的接触部位。
此密封材料由至少两种成分组成。这些成分可以这样选择，即，得出一种可变的反应时间。针对具体使用情况可以调整的此反应时间结束后，密封材料增大其体积。为此，例如可以在安装接触件之前将它安放在HF电缆的外面，或也可以放在接触件里面。但此密封材料也可以这样使用，例如在接触件的内表面只放上其一种成分。增大体积的反应则通过放在接触件与HF电缆之间空腔内的第二种成分来完成。
下面借助于附图表示的实施例说明按本发明的方法。
其中：
图1和2HF电缆两种不同的连接位置；
图3借助于按本发明的方法安装的接头剖面图。
图1表示了HF电缆1，它与一台电子仪器2连接。此HF电缆1可以是具有任意结构的同轴电缆，或也可以是波导管。在HF电缆1的端部安装接头3，借助于此接头3可以连接在仪器2的一个相配接头4上。
图2表示了在两根HF电缆1和5之间的连接位置。在这里，接头3与装在HF电缆5上的一致的接头6连接。
按图3，接头3装在同轴HF电缆1的端部上。在图示的实施例中此HF电缆1有一个设计为波纹形的管状的外导体7，外导体7通过电介质8作为中间连接同心地围绕着一个内导体9。在外导体7外面装有绝缘材料制成的外套10。接头3设计为套管状接触件。在图示的实施例中，它由一个管段11和一个连接件12组成，后者例如可通过螺纹拧在管段11上。在这两个部分之间可以置入一个密封件13。在连接件12的自由端可装有一个可旋转的锁紧螺母14。接触件围绕着HF电缆1的端部。在这两个部分之间的空腔内置入一种密封材料15。通过连接件12的一个环形的环16形成与外导体1良好的导电连接，环16通过与管段11的螺纹连接并借助于一个管状的弹性加压件压在外导体7上。
此接头3采用按本发明的方法可例如按以下所述装配。
在HF电缆1的端头，将在外导体7预定长度上的外套10去除。接着，相应于图3所示，在从外导体7到外套10的过渡部位的区域内置入密封材料15，并使此密封材料至少在一个短的轴向距离内没有轴向间断地既贴靠在外导体7周围也贴靠在外套10周围。然后，接触件的管段11带着在它内部的加压件17套在HF电缆1的端头上，以及此连接件12与管段螺纹连接。与此同时，环16和加压件17从不同的侧面压靠在外导体7上。因此装好了此接触件。现在，密封材料15可以增大其体积。
密封材料15至少由两种成分组成，它们在起始阶段结束后导致增大此密封材料的体积。适用的基本材料例如是聚氨酯和甲基丙烯酸甲酯(MMA)，通过添加已知的反应成分它们增大其体积。基本材料及反应成分应这样来选择和调整，即，造成一种具有持久弹性的密封材料15。这两种成分可在按描述的方式放在HF电缆1上之前不久组合成密封材料15，也就是说，例如使体积增大的反应在10分钟之后开始。这样便为装配工留出了足够的时间，以便平静地装配接触件。在完成反应后，密封材料15充填了被管段11围绕着的HF电缆1周围的空腔。在这种情况下密封材料紧密地贴靠在外导体7、外套10和管段1上。在此关键部位水分不再能侵入接头3中。接触件与外导体7的接触部位是有效地防水的。
也可以与图3所示的实施形式不同地这样安放密封材料15，即，HF电缆1与接触件之间的全部空腔沿其全部轴向长度充填密封材料。接触件在与外导体7恰当地触点连通的情况下也可以设计为整体式的。外导体7也可以是光滑的管。
采用适当的材料也可以将密封材料15的成分之一按预加工的形式安置在管段11的内表面上。反应则以借助于第二种成分可调整的时间进行，此第二种成分在接触件装配前放在HF电缆1的表面上。密封材料15的这些成分也可以分开地置入一个预制构件内，例如一个环内，在装配接头3时强制性地拆除此预制构件，从而使这些成分相聚。在这之后或重新具有相应的延迟地开始此密封材料15的体积增大。在这种方案中，例如可以将其中一种成分放在一些小囊内，在装配接头3时它们开裂。
在图中所表示的实施例中，接头3装在同轴的HF电缆1上。为了内导体9的触点接通，连接件12有一个中心插件18，它伸入内导体9内并通过环形绝缘子19相对于连接件12绝缘。包括管段11和连接件12的接触件也可以用作波导管的接头。

Claims (2)

1.在高频电缆上安装防水接头的方法，电缆至少有一个管状的电导体，电导体被绝缘材料制的外套围绕，按此方法，首先除去导体端部的外套，然后将一个套管状金属接触件电接通地固定在导体的这一端，以及，一方面在接触件与导体之间和另一方面在接触件与外套之间放上密封材料，其特征为：作为密封用的材料采用一种至少由两种成分组成的密封材料(15)，它在安装好接触件(11、12)之后增大它的体积，使得在接触件(11、12)与导体(7)之间以及在接触件(11、12)与外套(10)之间的环形空腔至少在从导体(7)到外套(10)的过渡区被此密封材料填满。
2.按照权利要求1所述的方法，其特征为：密封材料(15)的至少一种成分在装配接触件(11、12)之前放在它的内表面上。
CN97108742A 1996-12-21 1997-12-19 在高频电缆上安装防水接头的方法 Pending CN1192599A (zh)

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DE19654012.7 1996-12-21
DE19654012A DE19654012C2 (de) 1996-12-21 1996-12-21 Verfahren zum feuchtigkeitsdichten Anbringen eines Verbindungselements an einem Hochfrequenzkabel

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EP (1) EP0849838B1 (zh)
JP (1) JPH10223305A (zh)
KR (1) KR19980064445A (zh)
CN (1) CN1192599A (zh)
AU (1) AU730306B2 (zh)
BR (1) BR9706381A (zh)
DE (2) DE19654012C2 (zh)
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RU2144251C1 (ru) 2000-01-10
KR19980064445A (ko) 1998-10-07
EP0849838A2 (de) 1998-06-24
AU4839297A (en) 1998-06-25
DE19654012C2 (de) 1999-08-12
EP0849838B1 (de) 2002-05-22
US6148513A (en) 2000-11-21
EP0849838A3 (de) 1999-08-18
BR9706381A (pt) 1999-03-02
JPH10223305A (ja) 1998-08-21
DE59707323D1 (de) 2002-06-27
AU730306B2 (en) 2001-03-01
DE19654012A1 (de) 1998-07-02

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