CN101529667B - 同轴电缆连接器的挠性射频密封装置 - Google Patents

同轴电缆连接器的挠性射频密封装置 Download PDF

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CN101529667B
CN101529667B CN2007800400144A CN200780040014A CN101529667B CN 101529667 B CN101529667 B CN 101529667B CN 2007800400144 A CN2007800400144 A CN 2007800400144A CN 200780040014 A CN200780040014 A CN 200780040014A CN 101529667 B CN101529667 B CN 101529667B
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N·蒙特纳
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    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
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    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
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    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
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Abstract

本发明将挠性RF密封装置插入典型连接器的接地面。该密封装置包括挠性边缘、过渡带和管状衬套以及在该密封装置内形成的插入室。在第一实施例中，挠性边缘在离开插入室的方向倾斜，而在第二实施例中，挠性边缘向着插入室向内倾斜。当连接器的螺母被部分地拧紧时，该密封装置的法兰端在端口和连接器工作面之间形成顺从接触，而当螺母被适当拧紧时，该密封装置的法兰端变成被牢固地夹在接地面之间。本发明使连接器甚至在一定的拧紧扭矩范围内可以在端口上形成均匀的RF密封。

Description

同轴电缆连接器的挠性射频密封装置
发明领域
本发明涉及用于有线电视应用场合的同轴电缆的连接器，更具体地说，涉及用于在电缆端口和连接器工作面之间提供紧密的机械和电连接的结构。
发明技术
有线电视系统仍旧受由松动连接引起的服务质量问题的纠缠。通常，这些连接器松动是因为它们未被安装到适当扭矩，这种情况可以由于若干原因而出现：懒惰、缺乏训练和工具的不适当使用/使用不适当的工具。不适当安装的连接器将产生不良信号，因为各装置之间存在间隙，导致射频(″RF″)信号的泄漏。
例如，电缆端口用来将RF信号传递到同轴电缆，所述同轴电缆将信号传送到视频设备，诸如电视机。同轴电缆具有附着到其线端的内电缆连接器，所述内电缆连接器用来接纳电缆并且协助它连接到电缆端口。所述连接器包括螺母，所述螺母接合电缆端口并且将连接器与同轴电缆一起向所述端口推进。在该实例中，电缆连接器螺母用来夹住两个配合的表面：所述电缆端口和接纳同轴电缆的所述电缆连接器。若这两个表面不是紧密地连接，那么，将存在导致RF信号损失的间隙，产生低质量电缆信号。
已经提出对同轴电缆连接器的改进，以便对付这样的问题。在以下的美国专利中描述了对连接器的这种改进的示例：美国专利No.6,716,062(Palinkas等人)，所述专利的公开内容通过参考结合于本文中。在该专利中，将弹簧组件结合到传统同轴电缆连接器中，所述弹簧组件被结合在螺母组件下面并且在紧靠着柱构件的法兰部分的底下。在将螺母围绕连接器旋转若干次之后，所述弹簧将连接器朝向端口偏压。虽然这种装置是有效的，但是，它在连接器的制造过程中需要时间和成本。
因此，先有技术需要一种挠性装置，所述挠性装置可以与现有连接器一起用来避免RF信号泄漏。
另外，先有技术需要能够形成紧密的机械和电连接的连接器。
发明概述
本发明将挠性RF密封装置引入典型的连接器的接地面。该密封装置的法兰端在螺母被部分拧紧时在该端口和连接器工作面之间形成顺从接触(compliant contact)；而当该螺母被适当拧紧时，该密封装置的法兰端被牢固地夹在接地面之间。这使该连接器甚至在一定的拧紧扭矩范围内可以在端口上形成均匀的RF密封。
本发明涉及可以与同轴电缆连接器相配合的挠性RF密封装置，当安装好时，该挠性RF密封装置减少由该同轴连接器产生的RF泄漏量。该挠性RF密封装置是由导电和弹性的材料制成的简单装置并且具有三个区域：挠性边缘；用于保持该弹性边缘的挠性的过渡带；和管状衬套。此外，在该密封装置中形成插入室。在其第一实施例中，该挠性边缘离开该插入室向外倾斜。在第二实施例中，该挠性边缘向着插入室向内倾斜。
另外，本发明涉及用于安装在RF端口上的同轴电缆连接器，该同轴电缆连接器包括：具有法兰端和杆的柱构件，该柱构件具有贯穿的大致柱形的内孔；螺母，该螺母在一端具有内螺纹，在另一端具有接合该柱构件的法兰端的法兰盘；壳体构件；压缩环；以及用于在该柱构件和该RF端口之间提供均匀电连接的挠性装置。
本发明还涉及制作用于安装在同轴电缆的线端上的连接器的方法。该制作用于安装在RF端口上的连接器的方法包括：提供具有法兰端和杆的柱构件，该柱构件具有贯穿的大致柱形的内孔；提供螺母，该螺母在一端具有内螺纹，而在另一端具有法兰盘；提供壳体构件；提供压缩环和挠性RF密封装置，该挠性RF密封装置具有挠性边缘、过渡带和管状衬套；将该柱构件附着到接合该柱构件的法兰端的螺母的法兰盘上；将该壳体构件附着到该柱构件的该杆上；将该压缩环附着到该壳体构件上；以及将该挠性RF密封装置附着到该柱构件上。
另外，本发明涉及用于在RF端口和同轴电缆之间形成均匀RF密封的方法，该方法包括：提供连接器，该连接器包括螺母、柱构件、壳体构件、压缩环；提供挠性RF密封装置，该挠性RF密封装置包括挠性边缘、过渡带和管状衬套；提供同轴电缆；提供RF端口；将挠性RF密封装置附着到该连接器上；将该连接器附着到同轴电缆的线端上；以及利用该连接器和挠性RF密封装置将该同轴电缆连接到RF端口。
本发明的优点是：当由于不适当安装的缘故在该电缆端口和连接器工作面之间有间隙时，该挠性RF密封装置在该电缆端口和该连接器工作面之间提供紧密的连接。因而，该RF密封可以至少在该端口和该连接器之间提供接触以便防止RF信号泄漏，并且若适当地安装，那么，该RF密封被牢固地压缩在该端口和该连接器之间。
本发明的另外的优点是：本发明为提供有效的RF密封提供易于安装的非常可靠的解决方案。因此，该装置节省制造过程中的时间和成本。作为另一方案，可以利用该装置对已经使用的连接器进行翻新改造，以便提供均匀的RF密封。
附图简单说明
图1A是本发明的挠性RF密封装置的第一实施例的横剖视图；
图1B是本发明的挠性RF密封装置的第一实施例的等角投影图；
图2A是本发明的挠性RF密封装置的第二实施例的横剖视图；
图2B是本发明的挠性RF密封装置的第二实施例的等角投影图；
图3示出具有本发明的挠性RF密封装置的第一实施例的同轴电缆连接器的横截面；
图4示出具有本发明的挠性RF密封装置的第二实施例的同轴电缆连接器的横截面。
在所有几个附图中，相应的参考标号表示相应的部分。这里陈述的实例说明本发明的两个实施例，而不应当以任何方式将它们解释为限制本发明的范围。
实施例详述
参考图1A和1B，本发明是用于同轴电缆连接器的密封组件。更具体地说，该密封组件设计成保证同轴电缆、连接器和端口之间紧密的机械和电连接，从而被称为挠性射频(″RF″)密封装置10。存在限定挠性RF密封装置10的三个区域。首先，存在挠性或弹性边缘12，边缘12是挠性的，以便保证连接器和连接该连接器的电缆端口(未示出)之间的紧密连接。其次，存在过渡带14，该带14过渡到管状衬套16。挠性RF密封装置10还具有限定在密封装置10中的插入室18。
挠性边缘12是法兰端，在其第一实施例中，当插入同轴电缆时，它坐落在柱构件上面，如下面将要更详细地示出和描述的。在这个位置上，挠性边缘12可以被压在同轴端口上，使挠性边缘12被压缩和弯曲，使得挠性边缘12在连接器和端口之间建立紧密连接。在挠性RF密封装置10的第一实施例中，由于同轴电缆连接器的内部几何结构的缘故，挠性边缘12是倾斜的，使得它可以坐落在连接器中并且将连接器工作面密封到电缆端口上。挠性边缘12最好与水平方向成70度(70°)角。挠性边缘12是这样成形的，使得挠性边缘12向着离开插入室18的方向倾斜。
挠性RF密封装置10的下一个区域是过渡带14。由于电缆连接器的一般形状以及挠性RF密封装置在连接器内的定位的缘故，就有将挠性边缘12过渡到管状衬套部分16的带14。如图1A和1B中所示，在密封装置10的内侧，过渡带14是平坦的倾斜部分。过渡带14增加密封装置10的挠性，因为，作为过渡部分，一旦挠性边缘12在一端被同轴端口接合而在另一端被连接器的柱构件进一步压缩，过渡带14允许挠性边缘12进一步弯曲或建立更大的间隔角(angle ofdistance)。
挠性RF密封装置的最后区域是管状衬套部分16。管状衬套部分16在过渡带14的下面。管状衬套部分16在形状上是圆柱形的，并且随它的实施例而定，管状衬套部分16可以坐落在同轴电缆连接器内柱构件的内侧或外侧。在管状衬套部分16内形成插入室18。在挠性RF密封装置10的第一实施例中，管状衬套部分16坐落在电缆连接器的柱构件内(如图3中所示)。因此，插入室18协助接纳其上设置电缆连接器的同轴电缆。
参考图2A和2B，图中是用标号20表示的挠性RF密封装置的第二实施例。挠性RF密封装置20具有与第一实施例相同的三个区域：挠性边缘12、过渡带14和管状衬套16。此外，如同第一实施例10的情况，在挠性RF密封装置20内形成插入室18。第二实施例的挠性RF密封装置20具有与第一实施例10的不同的形状。所述形状不同，是因为密封20配置成坐落在同轴电缆连接器的柱构件的外侧，而密封装置10配置成坐落在柱构件内侧。挠性边缘12是这样间隔的，使得边缘12朝着插入室18向内倾斜。另外，一般说来，挠性RF密封装置20的管状衬套16的直径可大致大于密封装置10的管状衬套16的直径，因为它配置成坐落在同轴电缆的柱构件的外侧。
挠性RF密封装置10、20可以由能够协助在同轴电缆连接器和电缆端口的各表面之间提供紧密的坚固的连接的任何适当的材料制成。适当的材料可以包括金属，诸如铍铜、弹簧钢和磷青铜，这些材料都是弹性材料并且考虑到挠性。此外，虽然图中示出具有整体的平滑表面的挠性RF密封装置10、20，但是，所述密封装置可以具有这样的结构，其中有指状元件，或者还可以具有波纹结构。
在图3和4中，示出设置在同轴电缆(未示出)线端上的传统同轴电缆连接器100。连接器100具有六个组件。首先，在连接器100的线端上有螺母30，螺母30具有内螺纹32，内螺纹32用来以螺纹方式将连接器100与同轴电缆(未示出)一起连接到电缆端口(未示出)。螺母30围绕柱构件40自由旋转，使得它可以将连接器100和被容纳在它里面的同轴电缆向电缆端口推进。在柱构件40的法兰端44的下面，螺母30互连到柱构件40，由此，在柱构件40和壳体构件60之间形成螺母沟槽46。具体地说，螺母沟槽46在柱构件40的法兰端44的下面并且在壳体法兰端62的上面。相应的螺母法兰盘34与螺母沟槽46相配合并且允许螺母20围绕连接器100自由旋转。柱构件40具有穿过它而形成的圆柱形内孔，用以容纳同轴电缆。
此外，在螺母30和壳体构件60之间是耦合组件90，诸如O形环，以便在这些组件之间提供紧密的连接。壳体构件60也通过较大的壳体沟槽48连接到柱构件40，壳体法兰62与壳体沟槽48配合。在壳体构件60和柱构件40之间形成同轴电缆材料空间80。同轴电缆一般由若干部件构成。从内部向外侧推进，电缆的内部大部分是由内部介质层包围的中心导体，所述内部介质层被铝层覆盖。在该铝层上面是编织金属层，然后整个电缆被装入另一种介质材料中。其中有柱构件40的下分隔构件50，用来在其铝层和编织金属层之间分离同轴电缆，使得外介质层和编织金属层进入同轴电缆材料空间80，而铝层、内部介质层和中心导体层坐落在柱构件40的圆柱形内孔中。在连接器100的最末端是协助将连接器100附着到同轴电缆的线端的压缩环70。
现参见图3，其中示出本发明的连接到传统的同轴电缆连接器100的第一实施例。柱构件40具有凸缘42，挠性RF密封装置10坐落在凸缘42上。管状衬套16坐落在柱构件40内，使得插入室18协助建立连续的圆柱形内孔，同轴电缆(未示出)的一部分将装入所述圆柱形内孔内。挠性边缘12坐落在柱构件40的法兰端44上，但不是与法兰端44平齐的。挠性边缘12不是与法兰端44平齐的，使得它可以与电缆端口(未示出)及连接器100的形状一致，并且在很大程度上，电缆装入所述连接器内后，在电缆端口和带有电缆的连接器100的各内部部分之间往往有间隙。如上所述，必要时，可以将挠性边缘12向后推，以便使其与水平方向构成的角度从其制造时的定位增大。另外，可以使挠性边缘12变形，以便保证柱构件40和电缆端口之间的紧密连接。
参考图4，其中示出密封20的第二实施例。密封20坐落在柱构件40的法兰端44的外侧。在这个位置，密封20坐落在螺母30(在螺母法兰盘34上)和柱构件40的法兰端44的外侧之间。挠性边缘12坐落在法兰端44上，但不是与法兰端44平齐的，使得它可以适应电缆端口(未示出)和带有装入它里面的同轴电缆(未示出)的连接器100两者的形状。在该实施例中，柱构件40不需要如具有密封装置10的图3中所示的凸缘42。一旦连接器100接合电缆端口并且被推进而使电缆的内导体进入所述端口，可以使密封20变形到填充间隙或将连接器100紧密地连接到端口所需要的位置。
虽然已经参考特定实施例描述了本发明，但是，本领域的技术人员将会明白，可以在不脱离本发明的范围的情况下作出各种不同的变化并且可以用等同的组件来替换其中的组件。另外，可以在不脱离本发明的范围的情况下作出许多修改，以便使特定的情况或材料适应本发明的教导。
因此，我们的意图是，不要将本发明限于作为设想的用于实施本发明的最佳方式公开的特定实施例，而是，本发明将包括属于后附的权利要求书的范围和精神的所有实施例。

Claims (9)

1.一种安装在RF端口上的同轴电缆连接器，所述同轴电缆连接器包括：
柱构件，其具有法兰端并且具有穿过其中的大致圆柱形内孔；
螺母，所述螺母在一端具有内螺纹而在另一端具有用以接合所述柱构件的法兰端的法兰盘；
壳体构件；
压缩环；和
具有挠性边缘、过渡带和管状衬套的挠性RF密封装置，其中，所述挠性RF密封装置的管状衬套位于所述圆柱形内孔内的所述柱构件的所述法兰端处。
2.一种制作用于安装在RF端口上的连接器的方法，所述方法包括：
提供以下部件：柱构件，其具有法兰端并具有穿过其中的大致圆柱形内孔；螺母，所述螺母在一端具有内螺纹而在另一端具有法兰盘；壳体构件；压缩环；和挠性RF密封装置，所述挠性RF密封装置具有挠性边缘、过渡带和管状衬套；
将所述柱构件附着到接合所述柱构件的所述法兰端的所述螺母的所述法兰盘上；
将所述壳体构件附着到所述柱构件上；
将所述压缩环附着到所述壳体构件上；以及
将所述挠性RF密封装置直接附着到所述柱构件上，将所述挠性RF密封装置的管状衬套置入所述柱构件的圆柱形内孔内。
3.一种供同轴电缆连接器使用的挠性RF密封装置，所述密封装置包括：
具有第一端和第二端的挠性边缘；
形成于所述第一端上的过渡带；以及
连接在所述过渡带上的管状衬套，其中，所述挠性RF密封装置的管状衬套置入柱构件的圆柱形通孔内；以及
由此，所述挠性RF密封装置配置成在随同轴电缆配合到RF端口时产生变形，其中，所述挠性RF密封装置在所述RF端口与所述同轴电缆连接器的柱构件之间变形，从而在所述RF端口与所述同轴电缆连接器之间提供了均匀的RF密封。
4.一种安装在RF端口上的同轴电缆连接器，所述同轴电缆连接器包括：
壳体构件，沿着所述壳体构件的纵轴线具有内部通路；
具有法兰端和穿过其中的大致圆柱形内孔的柱构件，所述柱构件部分地设置在所述内部通路内；
螺母，所述螺母在一端具有内螺纹而在另一端具有用以接合所述柱构件的法兰端的法兰盘；和
挠性RF密封装置，其包括：在一端的管状衬套；在相反端的挠性边缘；在所述管状衬套和所述挠性边缘之间的过渡带，其中，所述管状衬套配置在所述螺母和所述柱构件的所述法兰端之间，并且所述过渡带允许所述挠性边缘进一步弯曲，由此，将所述连接器紧固在所述端口上导致所述端口使所述挠性边缘发生变形而贴靠在所述柱构件的所述法兰端上。
5.如权利要求4所述的同轴电缆连接器，其中，所述同轴电缆连接器还包括：
附着到所述壳体构件的一端上的压缩环。
6.一种制作用于安装在RF端口上的连接器的方法，所述方法包括：
提供以下部件：壳体构件，其具有设置于其中的内部通路；部分地设置在所述内部通路内的柱构件，所述柱构件具有法兰端和穿过其中的大致圆柱形内孔；螺母，所述螺母在一端具有内螺纹而在另一端具有用以接合所述柱构件的法兰端的法兰盘；配置成可接合到所述壳体构件的一端上的压缩环；以及挠性RF密封装置，其包括：在一端的管状衬套；在相反端的挠性边缘；在所述管状衬套和所述挠性边缘之间的过渡带，其中，所述管状衬套配置在所述螺母和所述柱构件的所述法兰端之间，并且所述过渡带允许所述挠性边缘进一步弯曲，所述方法包括：
将所述螺母的所述法兰盘与所述柱构件的所述法兰端相接合；
将所述壳体构件附着到所述柱构件上；
将所述压缩环附着到所述壳体构件上；
将所述挠性RF密封装置在所述柱构件的凸缘上附着到所述柱构件上或附着到所述柱构件的法兰端的外侧；
将所述管状衬套配置在所述螺母和所述柱构件的所述法兰端之间；并且
将所述连接器紧固在所述端口上，以导致所述端口使所述挠性边缘发生变形而贴靠在所述柱构件的所述法兰端上。
7.如权利要求6所述的方法，其中所述挠性RF密封装置由弹性材料制成。
8.如权利要求7所述的方法，其中所述弹性材料是金属合成物。
9.一种供同轴电缆连接器使用的挠性RF密封装置，所述密封装置包括：在一端的管状衬套；在相反端的挠性边缘；在所述管状衬套和所述挠性边缘之间的过渡带，其中，所述管状衬套配置在所述螺母和所述柱构件的所述法兰端之间，并且所述过渡带允许所述挠性边缘进一步弯曲，由此，将所述连接器紧固在RF端口上导致所述端口使所述挠性边缘发生变形而贴靠在所述柱构件的所述法兰端上。
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US7753705B2 (en) 2010-07-13
US20080248689A1 (en) 2008-10-09
US20080102696A1 (en) 2008-05-01
WO2008051740B1 (en) 2008-08-14
WO2008051740A3 (en) 2008-07-03

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