CN100539301C - 连接器 - Google Patents

连接器 Download PDF

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CN100539301C
CN100539301C CNB031522904A CN03152290A CN100539301C CN 100539301 C CN100539301 C CN 100539301C CN B031522904 A CNB031522904 A CN B031522904A CN 03152290 A CN03152290 A CN 03152290A CN 100539301 C CN100539301 C CN 100539301C
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connector
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connector body
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诺亚·P·蒙塔纳
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PPC Broadband Inc
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural 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
    • H01R9/03Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0521Connection to outer conductor by action of a nut

Abstract

一种连接器(10)包括一个连接器(10)主体,一个支撑件和一个紧固件。在一个实施例中,连接器(10)可以用来将具有一个中心导体(14),一个绝缘芯(20)一个外层导体(14)和一个外套的同轴电缆(12)连接到一个终端设备上。在连接器上可以使用一个连接到连接器主体或是支撑件上的螺母来完成对设备的连接。支撑件上具有用来容纳同轴电缆的中心导体和绝缘芯的一个空腔。由连接器主体和支撑件构成一个外部空腔,让同轴电缆的外层导体和外套处在中间。处在安装前的第一位置上的紧固件被移动地紧固到连接器主体上。紧固件可以朝着螺母移动到第二位置,使紧固件与连接器主体配合,让连接器密封地咬合同轴电缆。

Description

连接器
技术领域
本发明涉及到用来连接电缆和设备接口,终端等等的连接器。本发明特别适用于在电缆电视工业中采用的通用的同轴电缆连接器,但是还不仅限于此。
背景技术
在使用诸如电视机和录像机这样的电子设备时往往需要将这些设备连接到一起,或者是连接到其它电子信号源。普通的电视可以连接到通过同轴电缆进入家庭的电缆服务。可以使用一或多个连接器将这种电缆连接到电视机上。
惯用的同轴电缆通常包含一个位于中心的导体,它的外围是外层圆筒形编织导体,并且在内部有一定的间隔。中心和编织导体被一层箔和一个绝缘芯隔开,编织物被封闭在一个保护套外壳内。在某些类型的同轴电缆中没有使用箔层,而是用外层编织导体包住绝缘芯。
惯用的同轴电缆终端连接器包括一个适合被插入在电缆的箔和外层编织导体之间适当制备的一个端头的内部圆筒,并且暴露出后者的端头而且翻卷到护套外壳上面。这样就由中心导体,绝缘芯和箔构成了电缆上被同轴地接收在内部圆筒中的中心部分,而外层编织导体和护套外壳构成了电缆上围绕内部圆筒的外层部分。
惯用的同轴电缆终端连接器进一步包括一个外层部件,设计成用来配合一个内层支柱件,牢固和密封地将电缆的外层部分夹在中间。在“夹子式”的终端连接器中,外层部件是一个相对固定的连接器主体,并且被设计成能够用一个夹紧工具使其径向向内朝着内层支柱件变形。在可供本文参考的美国专利US5073129(Szegda);5083943(Tarrant);以及5501616(Holliday)中描述了夹子式终端连接器的典型例子。
在所谓的“径向压缩式”终端连接器中,外层部件是一个适合相对于内层支柱件轴向移动到一个夹紧位置的基本上不变形的套筒,在夹紧位置上与内层支柱件配合将制备好的电缆终端夹在两者之间。在可供本文参考的美国专利US3710005(French);4676577(Szegda);以及5024606(Yeh Ming-Hwa)中描述了径向压缩式终端连接器的典型例子。
现有技术中的这些径向压缩式终端连接器在安装到电缆终端上时都有一个共同的缺点,那就是外层套筒部件是分离的,并且独立于内层支柱件和/或连接器部件。因此,外层套筒部件往往容易掉下来或者是错位或丢失,特别是在天气条件不够好的情况下进行室外安装时。
按照其它的尝试,连接器是按照可拆卸地以并列的关系将连接器主体和外层套筒部件互连到一起的。这样做是为了安装前的处理和储存。然而,在安装过程中,外层套筒部件仍然必须是与连接器主体分开的,并且做为一个单独的元件被拧在或是插在电缆上。这样,外层套筒部件的操作失误或是丢失在安装前的这一阶段中仍然是一个严重问题。
同样可供本文参考的美国专利US5295864(Birch等人)的全文描述了一种整体的外层套筒部件。然而,这种外层套筒部件是随着被拧到一个设备端口上的连接器而移动到它的夹紧位置的。在到达夹紧位置之前,终端连接器仅仅是松散地装配的,因而就容易与电缆的端头错位。这样也会给安装人员带来麻烦。
公知连接器的另一个缺点需要一个O形环或是类似的密封件来防止湿气从连接器主体和外层套筒部件之间渗入终端连接器。
因此,针对被各种型号和尺寸的电缆所广泛使用的公知连接器的这些问题需要不断地加以改进。另外还需要对连接器进行不断的改进,减少其结构的复杂性并且经济适用。
发明内容
一种用于将一同轴电缆的一终端与一螺纹端口连接的连接器,所述同轴电缆具有一中心导体、一绝缘芯、一外层导体和一外护套壳,所述连接器包括:
a.一支柱件,它限定了一第一内腔并且具有一第一开口适于插入所述同轴电缆的一暴露端,而同时围绕其绝缘芯,所述支柱件同时具有一相对的第二开口,所述第一开口和所述第二开口中的任何一个都与所述第一内腔连通;
b.一螺母,具有用于与所述螺纹端口螺纹结合的内螺纹孔,所述螺母和支柱件是可以转动的;
c.一连接器主体,它具有一第一直径的外表面和一内表面,所述连接器主体与所述支柱件连接并且限定了一在它们之间的第一外腔,所述第一外腔接纳同轴电缆的外层导体和外护套壳,所述连接器主体是可变形的;
d.一紧固件,它具有第一开口和第二开口、以及在第一开口和第二开口之间延伸贯通的一个腔,所述紧固件的第一开口具有一第一内孔,其直径与所述连接器主体的外表面的第一直径相适应以便允许所述紧固件的第一开口伸过所述连接器主体的外表面,所述紧固件的第二开口具有第二内孔,第二内孔的第二直径小于第一孔的直径;以及
e.当所述紧固件沿所述连接器主体轴向前进时,介于所述第一内孔和所述第二内孔的一个斜形表面使所述连接器主体向所述支柱件朝内变形,并压靠所述同轴电缆的外护套壳。
所述紧固件的第一内孔为具有一第一恒定直径的内孔。
所述同轴电缆具有一中心导体、一绝缘芯、一外层导体和一外护套壳,所述连接器包括:
a.一支柱件,它限定了一第一内腔并且具有一第一开口适于插入所述同轴电缆的一暴露端,而同时围绕其绝缘芯,所述支柱件同时具有一相对的第二开口,所述第一开口和所述第二开口中的任何一个都与所述第一内腔连通;
b.一连接器主体,它具有一壁,所述连接器主体可操作地连接到所述支柱件并且限定了一在它们之间的第一外腔,用于将所述同轴电缆的外护套壳和外层导体容纳在所述第一外腔中,所述连接器主体是可变形的;
c.一紧固件,它具有一第一开口和一第二开口以及限定在所述第一开口和第二开口之间的一个腔,用于容许同轴电缆的一部分通过其间,紧固件在安装在同轴电缆端部之前以一第一构造固定于连接器主体,其中,当所述紧固件沿连接器主体前进时,所述紧固件使所述连接器主体向着所述支柱件向内变形并靠着同轴电缆的所述外护套壳。
一个斜形表面设置在所述第一开口和第二开口之间。
在所述连接器主体上设置一个法兰以在第二构造结合所述紧固件。
所述紧固件在上述第一构造中被压配合在上述连接器主体上。
根据本发明,提供了一种用于将一同轴电缆的一终端与一螺纹端口连接的连接器,所述同轴电缆具有一中心导体、一绝缘芯、一外层导体和一外护套壳,所述连接器包括:a.一支柱件,它具有一第一开口适于插入所述同轴电缆的一暴露端,而同时围绕其绝缘护套,所述支柱件同时具有一相对的第二开口;b.一螺母,用于与所述支柱件的第二开口旋转地结合,并具有用于与所述螺纹端口螺纹结合的内螺纹孔;c.一连接器主体,它具有一第一直径的外表面和一内表面,所述内表面限定一围绕所述支柱件延伸的第一外腔,所述连接器主体在靠近所述支柱件的第二端处与支柱件结合,所述第一外腔接纳所述同轴电缆的外部,所述连接器主体是可变形的;d.一紧固件,它具有第一开口和第二开口、以及在第一开口和第二开口之间延伸贯通的一个腔,所述紧固件的第一开口具有一第一内孔,其直径与所述连接器主体的外表面的第一直径相适应以便允许所述紧固件的第一开口伸过所述连接器主体的外表面,所述紧固件的第二开口具有第二内孔,第二内孔的第二直径小于第一孔的直径;以及e.当所述紧固件沿所述连接器主体轴向前进时,介于所述第一内孔和所述第二内孔的一个斜形表面使所述连接器主体向所述支柱件朝内变形,并压靠所述同轴电缆的外护套壳。
本发明提供的这种连接器特征在于,所述紧固件的第一内孔为具有一第一恒定直径的内孔。
根据本发明的另一方面,还提供了一种用于连接一同轴电缆的一终端的连接器,所述同轴电缆具有一中心导体、一绝缘芯、一外层导体和一外护套壳,所述连接器包括:a.一支柱件,它具有一第一开口适于插入所述同轴电缆的一暴露端,而同时围绕其绝缘护套,所述支柱件同时具有一相对的第二开口;b.一连接器主体,它具有一壁,所述连接器主体可操作地连接到所述支柱件,所述壁限定一围绕所述支柱件延伸的第一外腔,用于将所述同轴电缆的保护外套容纳在所述第一外腔中,所述连接器主体是可变形的;c.一紧固件,它具有一第一开口和一第二开口以及限定在所述第一开口和第二开口之间的一个腔,用于容许同轴电缆的一部分通过其间,紧固件在安装在同轴电缆端部之前以一第一构造固定于连接器主体,所述腔的尺寸做成,当所述紧固件沿连接器主体从所述第一构造滑动地移到一第二构造时,将连接器主体沿径向向内压缩,以减少连接器主体的第一外腔的容积,其中,当所述紧固件沿连接器主体前进时,所述紧固件使所述连接器主体向着所述支柱件向内变形并靠着同轴电缆的所述外护套壳。
本发明另一方面提供的连接器特征在于,一个斜形表面设置在所述第一开口和第二开口之间。
本发明另一方面提供的连接器特征在于,在所述连接器主体上设置一个法兰以在第二构造结合所述紧固件。
本发明另一方面提供的连接器特征在于,在所述连接器主体的第一端的外壁上形成一皱纹面部分以减少所述紧固件沿所述连接器主体向前滑动时的驱动力。
本发明另一方面提供的连接器特征在于,所述连接器主体的第一端用一爪固定在所述紧固件上。
本发明另一方面提供的连接器特征在于,所述紧固件在上述第一构造中被压配合在上述连接器主体上。
附图说明
以下要具体地参照附图来解释本发明,在附图中:
图1是按照本发明的连接器的一个实施例的纵向截面图,表示了制备好的同轴电缆端头,并且其中的紧固件处在第一构造;
图2是图1所示连接器的支柱件的纵向截面图;
图3是图1所示连接器的连接器主体的纵向截面图;
图4是图1所示连接器的紧固件的纵向截面图;
图5是图1所示连接器的纵向截面图,图中的紧固件处在第二构造;
图6是按照本发明的连接器的另一个实施例的纵向截面图,图中的支柱件有一个扩大部位,并且紧固件处在第一构造;
图7是按照本发明的连接器的另一个实施例的纵向截面图,图中的紧固件处在第一构造;
图8是图7所示连接器的支柱件的纵向截面图;
图9是图7所示连接器的连接器主体的纵向截面图;
图10是图7所示连接器的紧固件的纵向截面图;
图11是图7所示连接器的螺母件的纵向截面图;
图12是图7所示连接器的纵向截面图,图中的紧固件处在第二构造;
图13是图7所示连接器的一个透视图,图中的紧固件处在第二构造;
图14是按照本发明的连接器的再一个实施例的纵向截面图,图中的紧固件处在第一构造;
图15是图14所示连接器的支柱件的纵向截面图;
图16是图14所示连接器的连接器主体的纵向截面图;
图17是图14所示连接器的紧固件的纵向截面图;以及
图18是图14所示连接器的螺母件的纵向截面图;
图19是图14所示连接器的纵向截面图,图中的紧固件处在第二构造;
图20是图14所示连接器的一个透视图,图中的紧固件处在第二构造;
图21是图7所示连接器的一个透视图,图中的紧固件处在第二构造;以及
图22是图14所示连接器的一个透视图,图中的紧固件处在第二构造。
具体实施方式
在以下的说明中所参照的任何方向或是排列都是并且仅仅是为了便于解释,对本发明的范围并不构成任何的限制。另外,本文中所述的具体实施例也不应该被认为是对本发明的限制。
参见图1,在图中表示了邻接制备好的电缆12端头的按照本发明一个实施例的连接器10。在图示的实施例中,电缆12就是公知的同轴电缆,它具有一个中心导体14,其外围与编织导体16径向向内地隔着一层箔18和一个绝缘芯20。一层介质外壳或是护套壳22围住编织导体16并且构成了电缆的最外层。紧固是按照这种同轴电缆来描述的,本发明的连接器10仍然可以用于不同于上述结构的同轴电缆。
如图1所示,电缆的端头被制备成通过有选择地去掉各个层而逐渐地暴露出中心导体14的端头以及绝缘芯20和箔18的端部来接收连接器10。编织导体16的端部被折叠到护套壳22上面。
参见图1-4所示的本发明的一个实施例,连接器10的结构和尺寸适合接收制备好的同轴电缆端头。连接器10上具有包括连接器主体24和支柱件26的第一主体件。如图1-4所示,连接器10上还具有第二主体件也就是紧固件28。支柱件26最好是具有第一开口30和第二开口32的一个管形件。支柱件26限定了第一内腔34。连接器主体24的内表面围绕着支柱件26在径向上的间隔限定了可以通过连接器主体24一端上的开口38接入的第一外腔36。第一外腔36的位置靠近连接器主体24和支柱件26的另一端。
连接器主体24和支柱件26最好采用分离的部件,将连接器主体24压配合在支柱件26的外表面上。在这一实施例中,连接器主体24最好是用黄铜或是铜合金制成的,而支柱件是用黄铜制成的。在另一个实施例中,可以将连接器主体24和支柱件26制成一个单件的整体。另外,也可以用塑料制品制成连接器主体24。
连接器主体24的内表面上面对着支柱件26最好设有环形的锯齿40。在美国专利5073129(Szegda)中描述了类似的锯齿,其全文可做为本文的参考资料。如下文中所述,当紧固件28处在其第二构造的位置时,连接器主体24的支柱件26和环形锯齿40构成了连续的环境密封,并且咬住电缆的编织导体16和护套壳22。
参见图6,在另一个实施例中,在第一外腔36内部靠近开口38的位置上,支柱件26的外表面可以构成一个径向扩大部分42。与图1的实施例类似,支柱件的径向扩大部分42与连接器主体的环形锯齿配合,形成一种连续的环境密封,并且当紧固件28处在其第二构造时咬住电缆的编织导体和保护套外壳。
如图1,3和5所示,螺母件44具有内螺纹46,并且设有座落在由支柱件26的底座和连接器主体24的沟槽52构成的沟槽50中的一个肩部48。螺母44和支柱件26是可以转动的。用来防护湿气的一个O形环密封54可以座落在连接器主体24的沟槽52中。
在图1和4中所示的紧固件28是一种管状的结构。紧固件28最好是采用无电镀的镍/聚四氟乙烯抛光的钢制成的,并且具有限定了一个第二空腔60的第一开口56和第二开口58。紧固件28包括具有第一直径的第一内孔62和具有小于第一内孔直径的第二直径的一个第二内孔64。在第一内孔62和第二内孔64之间有一个斜面66。另外,在第一入口56处有一个从第一内孔延伸到入口56的略微的喇叭口68,让紧固件28能够紧固到连接器主体24上。在图1和4所示的实施例中,尽管紧固件28可以连接到连接器主体24上,可以用手来移动紧固件28,紧固件28相对于连接器主体24的尺寸和结构可以使紧固件28被牢固地附着在连接器主体24上。通过压配合的组装就可以完成这种连接。如下文所述,紧固件28可以移动地连接到连接器主体24上,让它能够在连接器主体24上从组装前的第一构造移动到第二组装构造。第一内孔62和第二内孔64的直径都比接纳这一紧固件28的连接器主体部分的外径d要小。
在图1所示的安装前的第一构造中,紧固件28被紧固在连接器主体24上,让第一内孔62紧密地附着在连接器主体24上并且咬住连接器主体24,使第一外腔36的体积相应地缩小。就这样朝着支柱件26的外表面径向向内推动连接器主体24。在安装前的第一构造下,紧固件28就是按照这种方式牢固地紧固在连接器主体24上,在储存,运输和安装到电缆端头上的过程中处于一种装配状态。与原有的设计结构相比,这样就能消除紧固件28在运输和安装过程中发生丢失或者错位的风险。
图5所示的第二构造是在将紧固件28沿着连接器主体24轴向移动到连接器主体24上的第二位置之后形成的,让紧固件28的第二内孔64与连接器主体24的外表面啮合。如图3和5中所示,在连接器主体24上设有在第二构造下与紧固件28啮合的法兰70。在本实施例中,图示的法兰70是一个管状的环或者是它的一部分。然而,也可以由处在连接器主体24的外表面上的一或多个位置的一或多个突起构成这种法兰70。
以下要参照图1和5来解释将这种连接器在同轴电缆上定位的一种方法。通过暴露出包括中心导体14,绝缘芯20和箔18在内的中心部分而制备好同轴电缆的端头。将外层编织导体16折叠到外层护套壳22的端部上面。制备好的同轴电缆端头可以通过紧固间28的第二开口插入,将包括中心导体14,绝缘芯20和箔18在内的中心部分插入支柱件26的第一内腔34。并且通过开口38将包括折叠到外层护套壳22的端部上面的外层编织导体16在内的电缆外层部分接收在第一外腔36中。
如图2所示,在支柱件紧邻第二开口32的第一内腔34的内部有一个内部边缘72。边缘72的位置能使中心导体14的暴露的端头从支柱件26的第二开口32中伸出,同时防止电缆的绝缘芯和箔从支柱件26的第二开口32中脱出。
当电缆的绝缘芯部分处在顶住支柱件26的边缘72的位置时,就可以用标准的工具将紧固件28在轴向上从安装前的第一构造推动或是移动到它的第二构造。如上所述,在本实施例中,紧固件28在其第二构造下啮合连接器主体24的法兰。
如图3所示,由于紧固件28的第二内孔64的直径比用来接收紧固件28的连接器主体24的那一部分的直径d小,它能够同心地咬住连接器主体,从而使第一外腔的体积进一步缩小。也就是使连接器主体24在径向上进一步向内错位或是移动。这样就能将电缆的外部牢固地咬合或是夹持在支柱件26的外表面和连接器主体24之间。按照这种方式,在本实施例中,支柱件26与连接器主体的环形锯齿40相配合,形成一种连续360°的密封并且咬住电缆的外部。在图6所示的另一个实施例中,支柱件26的喇叭口部分42按照类似的方式与连接器主体24的环形锯齿40相配合。这些结构都不需要在连接器主体24和紧固件28之间的环形或是其他形式的密封,并且可以容纳各种型号和尺寸的电缆。这样就可以采用本发明的通用连接器,而不需要使用各种尺寸的连接器。
当紧固件28处在其第二构造时,可以用螺母44将其连接到一个系统部件中通常是采用螺纹端口形式的连接器上。
参见图7-13和21,在图中表示了本发明的另一个实施例,连接器110包括连接器主体124,支柱件126,紧固件128和一个螺母件130。图7中表示连接器的紧固件128处在其第一构造,而图12-13和21表示表示连接器的紧固件128处在其第二构造。
与图1-6的连接器类似,用黄铜制成的支柱件126包括具有第一开口132和第二开口134的一个内部管状件。支柱件126限定了第一内腔136。连接器主体124的内表面与支柱件126在径向上保持距离,限定了一个可以通过开口140接入的第一外腔138。第一外腔138的远端被支柱件126和连接器主体124闭合。如图7-8所示,支柱件126的外环面上还可以包括一个用于与连接器主体124啮合的凸起142,连接器主体124通过压配合连接到支柱件上,确保与连接器主体124的牢固连接。
与图1-6的连接器的连接器主体一样,连接器主体124的内表面上具有与支柱件相对设置的环形锯齿144。当紧固件处在其在第二构造时,支柱件126和连接器主体124的环形锯齿144形成一种连续的环境密封,并且咬住电缆的编织导体16和护套壳22。本实施例的连接器主体是用一种塑料例如是DELRINTM制成的。
如图9所示,连接器主体的壁在145处变细,在紧固件128移动到其第二构造时便于连接器主体124径向移动。连接器主体124还可以包括与环形锯齿144相对的皱纹面部分146。这一皱纹面部分146可以减少沿着连接器主体124移动或是滑动紧固件128所需的驱动力。另外,连接器主体124的外表面上还可以包括用来与紧固件的内部沟槽150配合的一个爪148,当紧固件128处在其第一构造时将紧固件牢固地紧固在连接器主体124上。爪148可以是一个环状的凸起,或者是围绕着连接器主体形成的离散的凸起。
参见图7和10,用黄铜制成的紧固件128包括具有第一直径的第一内孔152和具有比第一内孔的直径小的第二直径的第二内孔154。在第一和第二内孔之间有一个斜面156。紧固件128具有靠近第一内孔的第一开口158和靠近第二内孔的第二开口160。在第一开口处设有喇叭口的内部162便于紧固件沿着连接器主体滑动。
紧固件128还包括靠近第一开口158的内部沟槽150。如上所述,这一内部沟槽与连接器主体的爪148配合,在图7所示的第一构造下将紧固件牢固地紧固在连接器主体上。在紧固件的外环面上还可以包括一个用于装配线的缺口164。这一缺口不影响连接器的操作。
第一内孔152的尺寸在紧固件处于第一构造时可以在径向上向内压缩连接器主体。或者是,当紧固件处于第一构造时,第一内孔152的尺寸能够直接在紧固件和连接器主体之间形成压配合。在这些结构下,连接器主体的爪148和紧固件的内部沟槽150的配合确保了紧固件在其第一构造下能够牢固地紧固在连接器主体上。
当紧固件处在其第二构造时,第二内孔154的尺寸在径向上向内压缩连接器主体。当然,当紧固件处在其第一构造时,第一内孔的尺寸便于在径向上向内压缩连接器主体,而当紧固件处在其第二构造时,第二内孔可以进一步在径向上向内压缩连接器主体。
如图7,11,12和13所示,螺母件130具有内螺纹166,并且具有座落在支柱件126的基座和连接器主体124所构成的一个沟槽中的第一肩部168。在支柱件,连接器主体和螺母件之间可以装设一个用于遮挡湿气的O形密封170。螺母件还应该包括第二肩部172。用第二肩部172加固连接器主体,并且可以当作工具的操作面,用来迫使紧固件沿着连接器主体滑动。
以下要说明将图7-13的连接器在同轴电缆上定位的一种方法。参照对图1-6所示的终端连接器的上述说明制备好同轴电缆的端头。然后通过紧固件的第二开口插入制备好的同轴电缆端头,象参照图1-6的连接器所描述的那样让包括中心导体14,绝缘芯20和箔18的中心部分插入支柱件126的第一内腔136。同样,通过开口140将折叠到外层护套壳22的端头上面的包括外层编织导体16的电缆的外层部分接收在第一外腔138中。
然后使电缆的绝缘芯和箔在支柱件内部轴向移位到边缘174。边缘的位置能够使中心导体14上暴露的端头从支柱件的第二开口134中伸出,同时又防止电缆的绝缘芯部分20和箔18通过支柱件的第二开口134发生移位。
在电缆的绝缘芯和箔的位置顶住支柱件的边缘174时,使用一种标准的工具将紧固件从它安装前的第一构造轴向推进或是移动到它的第二构造。在这一第二构造下,紧固件与连接器主体上做为定位挡块的法兰176啮合。
如上所述,紧固件的第二内孔154的尺寸可以集中地压缩连接器主体,以便缩小第一外腔138的体积。也就是使连接器主体在径向上向内变形。这样就能将电缆的外层部分牢固地夹持在支柱件126的外表面和连接器主体124之间。按照这种方式,在本实施例中,支柱件与连接器主体的环形锯齿144相配合,形成一种连续360°的密封并且咬住电缆的外部。图1-6所示的连接器一样,这种结构不需要在连接器主体和紧固件之间的环形或是其他形式的密封,并且可以容纳各种型号和尺寸的电缆。
当紧固件处在其第二构造时,可以用螺母130将其连接到一个系统部件中通常是采用螺纹端口形式的连接器上。
参见图14-20和22,在图中表示了本发明的又一个实施例,连接器210包括连接器主体224,支柱件226,紧固件228和一个螺母件230。图14表示连接器的紧固件228处在其第一构造,而图19-20和22表示表示连接器的紧固件228处在其第二构造。
与图1-6的连接器类似,用黄铜制成的支柱件226包括具有第一开口232和第二开口234的一个内部管状件。支柱件限定了第一内腔236。连接器主体的内表面与支柱件在径向上保持距离,限定了一个可以通过开口240接入的第一外腔238。第一外腔238的远端被支柱件226和连接器主体224闭合。如图14和15所示,支柱件的外环面上还可以包括一个用于与连接器主体啮合的凸起242,连接器主体再通过压配合连接到支柱件上,确保与连接器主体的牢固连接。
与图1-6的终端连接器的连接器主体一样,连接器主体的内表面上具有与支柱件相对设置的环形锯齿244。当紧固件处在其第二构造时,支柱件和连接器主体的环形锯齿244形成一种连续的环境密封,并且咬住电缆的编织导体16和护套壳22。本实施例的连接器主体是用一种塑料例如是DELRINTM制成的。
参见图16和17,连接器主体还可以包括处在其外表面上的第一缺口246,用来接收紧固件228上的爪248,以便在紧固件的第一构造下将其牢固地紧固在连接器主体上。另外,如图14,16和18所示,在螺母件的第二肩部252和连接器主体上的第二缺口254之间还可以设置一个沟槽250,当紧固件处在第二构造下时用来接收它的爪248。然而也可以省去这一沟槽,在紧固件处在其第一构造时让紧固件直接顶住由螺母件的第二肩部252形成的定位挡块。
参见图17,与图4和10中所示的紧固件相似,由黄铜制成的紧固件228包括具有第一直径的第一内孔256和具有小于第一内孔直径的第二直径的一个第二内孔258。在第一内孔和第二内孔之间有一个斜面260。另外,紧固件具有邻接着第一内孔的第一开口262和邻接着第二内孔的第二开口264。
紧固件还包括在其第一开口262处向内延伸的爪248。如上所述,这个爪和连接器主体的缺口246配合,让紧固件在其第一构造下牢固地紧固在连接器主体上,如图14所示。在紧固件的外环面上还可以包括一个用于装配生产线的缺口266。这一缺口不会影响连接器的操作。
第一内孔256的尺寸可以在紧固件处在其第一构造时在径向上向内压缩连接器主体。第一内孔256的尺寸也可以做成当紧固件处在其第一构造时在紧固件和连接器主体之间形成压配合。在这些结构中,紧固件的爪248都可以和连接器主体的缺口246配合,确保紧固件在其第一构造下牢固地紧固在连接器主体上。
紧固件228的第二内孔258的尺寸能够在紧固件处于其第二构造时在径向上向内压缩连接器主体。当然,第一内孔256的尺寸可以在紧固件处在其第一构造时在径向上向内压缩连接器主体,第二内孔258的尺寸能够在紧固件处于其第二构造时在径向上进一步向内压缩连接器主体。
如图14和18所示,具有内螺纹268的螺母件230具有座落在由支柱件226和连接器主体224构成的一个沟槽中的第一肩部270。一个用于隔离湿气的O形环密封272可以座落在支柱件,连接器主体和螺母件之间。螺母件还可以包括第二肩部252。第二肩部252可以加固连接器主体,并且可以用做工具的操作面,迫使紧固件沿着连接器主体滑动。
以下要参照图14-20和22来说明将图14的连接器在一个同轴电缆上定位的方法。按照根据图1-6的连接器所讨论的方式来制备同轴电缆的端头,然后将制备好的同轴电缆端头通过第二开口264插入紧固件228,让中心导体14,绝缘芯20和箔18构成的中心部分插入支柱件226的第一内腔236。同样将翻卷到外层护套外壳22上面的包括编织导体16的电缆外层部分通过开口240接收在第一外腔238内。
然后将电缆的绝缘芯20和箔18在支柱件内部轴向移动到边缘274处。这一边缘的位置可以使中心导体14上暴露的的端头从支柱件的第二开口234中伸出,同时防止电缆的绝缘芯20和箔18通过支柱件的第二开口234发生移动。
在支柱件的绝缘芯和箔的位置顶住支柱件的边缘274时,使用一个标准的工具将紧固件228从它安装前的第一构造轴向推进到它的第二构造。在第二构造下,可以用螺母件和连接器主体之间构成的沟槽250来固定紧固件的爪248。
如上所述,紧固件的第二内孔258的尺寸可以集中地压缩连接器主体,使第一外腔的体积缩小,也就是让连接器主体在径向上向内变形。这样,电缆的外层部分就被牢固地夹持在支柱件226的外表面和连接器主体224之间。按照这种方式,在一个实施例中,支柱件与连接器主体的环形锯齿244相配合,大体上形成连续的360°密封,并且咬住电缆的外层。与图1-6所示的连接器一样,这种结构可以省掉连接器主体和紧固件之间的O形环或是其它形式的密封,并且可以接纳各种型号和尺寸的电缆。
当紧固件处在其第二构造时,可以用螺母230将连接器连接到通过是螺纹端口形式的一个系统部件上。
尽管本发明是参照其具体实施例来说明的,显而易见,在不脱离本发明范围的条件下还可以对采用本发明的技术进行各种各样的修改和变更。本领域的技术人员在不脱离权利要求书所限定的本发明的范围的条件下仍然可以根据说明书的内容对公开的实施例进行修改。

Claims (5)

1.一种用于将一同轴电缆的一终端与一螺纹端口连接的连接器,所述同轴电缆具有一中心导体、一绝缘芯、一外层导体和一外护套壳,所述连接器包括:
a.一支柱件,它限定了一第一内腔并且具有一第一开口适于插入所述同轴电缆的一暴露端,而同时围绕其绝缘芯,所述支柱件同时具有一相对的第二开口,所述第一开口和所述第二开口中的任何一个都与所述第一内腔连通;
b.一螺母,具有用于与所述螺纹端口螺纹结合的内螺纹孔,所述螺母和支柱件是可以转动的;
c.一连接器主体,它具有一第一直径的外表面和一内表面,所述连接器主体与所述支柱件连接并且限定了一在它们之间的第一外腔,所述第一外腔接纳同轴电缆的外层导体和外护套壳,所述连接器主体是可变形的;
d.一紧固件,它具有第一开口和第二开口、以及在第一开口和第二开口之间延伸贯通的一个腔,所述紧固件的第一开口具有一第一内孔,其直径与所述连接器主体的外表面的第一直径相适应以便允许所述紧固件的第一开口伸过所述连接器主体的外表面,所述紧固件的第二开口具有第二内孔,第二内孔的第二直径小于第一内孔的直径;以及
e.当所述紧固件沿所述连接器主体轴向前进时,介于所述第一内孔和所述第二内孔的一个斜形表面使所述连接器主体向所述支柱件朝内变形,并压靠所述同轴电缆的外护套壳。
2.按照权利要求1的连接器,其特征在于,所述紧固件的第一内孔为具有一第一恒定直径的内孔。
3.一种用于连接一同轴电缆的一终端的连接器,所述同轴电缆具有一中心导体、一绝缘芯、一外层导体和一外护套壳,所述连接器包括:
a.一支柱件,它限定了一第一内腔并且具有一第一开口适于插入所述同轴电缆的一暴露端,而同时围绕其绝缘芯,所述支柱件同时具有一相对的第二开口,所述第一开口和所述第二开口中的任何一个都与所述第一内腔连通;
b.一连接器主体,它具有一壁,所述连接器主体可操作地连接到所述支柱件并且限定了一在它们之间的第一外腔,用于将所述同轴电缆的外护套壳和外层导体容纳在所述第一外腔中,所述连接器主体是可变形的;
c.一紧固件,它具有一第一开口和一第二开口以及限定在所述第一开口和第二开口之间的一个腔,用于容许同轴电缆的一部分通过其间,紧固件在安装在同轴电缆端部之前以一第一构造固定于连接器主体,所述紧固件的第一开口具有一第一内孔,所述紧固件的第二开口具有第二内孔,第二内孔的第二直径小于第一内孔的直径,介于所述第一内孔和所述第二内孔存在一个斜形表面,其中,当所述紧固件沿连接器主体前进时,所述紧固件使所述连接器主体向着所述支柱件向内变形并靠着同轴电缆的所述外护套壳。
4.按照权利要求3的连接器,其特征在于,在所述连接器主体上设置一个法兰以在第二构造结合所述紧固件。
5.按照权利要求3的连接器,其特征在于,所述紧固件在上述第一构造中被压配合在上述连接器主体上。
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CN1292940A (zh) 2001-04-25
US20050148236A1 (en) 2005-07-07
CN1122331C (zh) 2003-09-24
WO1999007035A3 (en) 1999-04-01
US20030025283A2 (en) 2003-02-06
BR9811817B1 (pt) 2014-09-23
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US20020030329A1 (en) 2002-03-14
US20030068924A1 (en) 2003-04-10
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US6153830A (en) 2000-11-28
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US6676446B2 (en) 2004-01-13
US6848940B2 (en) 2005-02-01
US20030114045A1 (en) 2003-06-19
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EP1019983A4 (en) 2000-11-02
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WO1999007035A2 (en) 1999-02-11
TW390051B (en) 2000-05-11

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