CN101714707A - 用于同轴电缆连接器的密封内导体触头 - Google Patents
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Abstract
一种具有接口端和电缆端的同轴电缆连接器内触头,用于与同轴电缆内导体耦接,所述内导体具有外直径表面。该内触头设置有在接口端的内导体接口;向电缆端敞开的内导体座;在该座的第一侧壁部分中的第一内直径槽;在第一侧壁部分接近电缆端处的第二内直径槽;第一弹簧触头,其尺寸设置为接合外直径表面,并坐落在第一内直径槽中;第一向内突出密封件,其尺寸设置为密封地抵靠外直径表面,并坐落在第二内直径槽中。
Description
技术领域
本发明涉及用于同轴电缆连接器的内触头。更具体地说,本发明涉及一种具有对同轴电缆内导体和内触头电互连改善的环境和抗腐蚀密封的同轴电缆连接器内触头。
背景技术
现有的同轴连接器一般依赖于在连接器、电缆和/或接口元件触点之间的多个密封件以防止潮气和/或湿气的侵入。多个环境密封件显著地增加了同轴连接器制造和组装的复杂性。
在同轴电缆和连接器工业中的竞争已经聚焦到改善电性能以及降低制造、材料和安装成本上。
发明内容
由此,本发明的一个目的是提供一种能够克服现有技术中的不足的方法和装置。
一方面,本发明提供一种具有接口端和电缆端的同轴电缆连接器内触头,用于与同轴电缆内导体耦接,所述内导体具有外直径表面,该内触头包括:在接口端的内导体接口;向电缆端敞开的内导体座;在该座的第一侧壁部分中的第一内直径槽;在第一侧壁部分接近电缆端处的第二内直径槽;第一弹簧触头,其尺寸设置为接合外直径表面,并坐落在第一内直径槽中;第一向内突出密封件,其尺寸设置为抵靠外直径表面密封,并坐落在第二内直径槽中。
另一方面,本发明提供一种用于将同轴电缆连接器内触头与同轴电缆内导体耦接的方法,所述内导体具有外直径表面,所述方法包括:将内导体插入到内触头的座中,经过坐落在该座的第一侧壁部分的第二内直径槽中的第一向内突出密封件,与坐落在第一侧壁部分的第一内直径槽中的第一弹簧触头接触。
本发明还提供一种具有接口端和电缆端的同轴电缆连接器内触头,用于与同轴电缆的内导体耦接,所述内导体具有外直径表面,所述内触头包括:在接口端的内导体接口;向电缆端敞开的内导体座;在该座的第一侧壁部分中的第一内直径槽;在第一侧壁部分接近电缆端处的第二内直径槽;弹簧圈,其尺寸设置为接合外直径表面,并坐落在第一内直径槽中;O形环,其尺寸设置为抵靠外直径表面密封,并坐落在第二内直径槽中;该O形环涂覆有表面密封剂。
附图说明
被并入并构成本说明书的一部分的附图示出了本发明的实施例,其与上面给出的本发明的综述以及随后给出的实施例的详细描述一起用于说明本发明的原理。
图1是第一示例性内导体触头的示意性剖切侧视图;
图2是第二示例性内导体触头的示意性剖切侧视图;
图3是第三示例性内导体触头的示意性剖切侧视图;
图4是第四示例性内导体触头的示意性剖切侧视图;
图5是替代实施例弹簧触头的示意性剖切侧视图;
图6是替代实施弹簧触头的示意性等方视图;
图7是耦接到同轴电缆的内导体的内触头的示意性剖切侧视图;
图8是安装在同轴电缆上的包括根据本发明的内触头的连接器组件的示意性剖切等方侧视图;
图9a是图8的示意性45度剖切等方侧视图;
图9b是图8的示意性45度分解等方侧视图;
图10是耦接到同轴电缆内触头的替代实施内触头的示意性剖切侧视图;
图11是图10的区域C的局部放大视图;
图12是如图10所示耦接到同轴电缆内触头的替代实施内触头的示意性剖切侧视图,其中内导体具有增大的直径;
图13是图12的D区域的局部放大视图;
具体实施方式
现有的同轴电缆通常具有由铜和铜合金制成的内导体和外导体。发明人认识到新型同轴电缆构造和或材料,譬如铝和或铝和铜的内导体和/或外导体或金属化外涂层可能需要对电互连的改进的保护,特别是当这些材料被连接到常用于电连接器的相异金属时。此外,这些新的同轴电缆构造与原有的同轴连接器往往是不兼容的,这是由于这些较软金属的蠕变特性以及在经受电化腐蚀和/或湿气加速氧化的相异金属之间形成可靠电连接的难度而导致的。
在通常的现有的同轴连接器中的环境密封件并不保护在内导体和内触头之间的电互连不受任何湿气的影响,湿气可能迁移经过连接器主体的环境密封件,在安装期间被密封在连接器中,和/或可能沿着同轴电缆的内侧迁移到电互连区域。安装误差和/或这些连接器主体的环境密封件中的任意一个的失效都可能允许潮气和/或湿气进入到连接器的连接区域,在那儿它可以聚积并导致腐蚀从而导致电连接的性能显著降低。
在铝内导体和内触头的相异金属(譬如青铜、黄铜或铜)之间的电化腐蚀,可能也有助于电和机械互连的加速老化。此外,渗透进内导体互连部的湿气对于涂覆铝材料而言是更大的问题,因为这增加了由于切割、绝缘剥除或其它用于互连的电缆端准备导致暴露到大气的铝材料的腐蚀和/或任意外直径表面涂层(譬如铜镀或金属化)边缘的分层的可能性。
如图1所示,同轴电缆连接器内触头1的第一实施例具有接口端3和电缆端5(沿着内触头纵向轴线的端部标记在后文中相似地用于内触头1的独立元件和相关的连接器组件7),该内触头1经由第一弹簧触头13连接到内导体11,该第一弹簧触头13被保持在朝向电缆端5开口的内导体座14的第一侧壁部分16中。第一弹簧触头13的尺寸被设计为接合内导体11的外直径表面9以在内触头1和内导体11之间形成稳固的电互连(图7)。
第一弹簧触头13可以被构造为具有各种替代构造。例如,如图1所示,第一弹簧触头13还可以形成为至少一个弹簧圈,例如坐落在第一侧壁部分16的第一内直径槽24中。
第一弹簧触头13的替代构造可包括,例如管状环(图2),以及大致U形弹簧(图3),例如其中U形弹簧的末端坐落在第一直径槽24中且中央部分从第一侧壁部分16延伸以接触外直径表面9。相似的,第一弹簧触头13可以是侧安装的V形弹簧(图4),例如其中弹簧的一侧与内触头1的纵向轴线同轴,而另一侧从第一侧壁部分以一角度朝向外直径表面9突出。此外,U形和V形弹簧(一或多个)可以在互连表面25附近设置有多个切口,例如如图5和6所示,以建立由各第一弹簧触头13的结构承载的多个独立的接触元件。每一个第一弹簧触头13的构造可以是连续环,也可以是便于插入到第一内直径槽24中的C形物。
内触头1到内导体11的电互连区域环境密封是由第一向内突出密封件18提供的,该第一向内突出密封件18例如被保持在第一侧壁部分16的第二内直径槽26中,该第二内直径槽26定位在第一内直径槽24的电缆端5一侧。第一向内突出密封件18可以形成为独立垫圈,譬如O形环或替代地由具有期望弹性、氧化和温度特性的聚合物在第二内直径槽26中模制到位。
除了防止铝氧化和/或腐蚀的密封件设计之外,根据本发明的内触头1还可以包括表面密封剂27(在各图中的符号27表示通常可能施加表面密封剂27的几个区域,由于表面密封剂27可以以涂层厚度施加,其太薄而不能在各图中形象地示出),譬如氧化和/或腐蚀抑制涂层或油脂。适当的表面密封剂的例子是可以从Dossert Corporation of Waterbury,Connecticut,US获得的Dostex TM氧化抑制剂族。
表面密封剂27可以预先提供,例如提供到第一和/或第二向内突出密封件(一或多个)18、36,第一和/或第二内直径槽(一或多个)25、26,和/或内导体座14。替代地,介电油脂可以通过使用者在连接器安装过程中施加到例如内导体11和或施加到内导体座。
在施加了表面密封剂27的地方,当内导体11移向内触头1时第一向内突出密封件18进入/抵靠第二内直径槽26的移动将会展开表面密封剂27涂层到内导体11上。当内触头1与涂覆有表面密封剂27的内导体11耦接时,内触头1的机械力将会把表面密封剂27从直接电互连区域移除,密封电互连部使其不暴露到大气和/或任何可能存在的湿气。
在内触头1的接口端3处的内导体接口28在图1-4中示出为弹簧笼15,符合连接器工业标准7/16DIN内螺纹连接器接口。替代地,内导体接口28可以是任何期望类型的构造和/或根据任意期望标准的互连表面或专有的同轴连接器接口,包括例如,可以进一步连接其它接口元件的插针、插座、或螺纹连接表面。
图7示出了在同轴电缆上的内触头1的典型实施例。图8-9b示出了内触头1与典型同轴连接器组件7的结合。连接器组件7构造通常取决于外导体20的构造(光滑壁、环形波纹、螺旋波纹等等)和或期望的连接接口,各种连接结构构造是本领域技术人员公知且由此不在此处进一步描述。
为了改善兼容性和/或降低所需的连接器组件构造总量,单个内触头1可以被构造用于具有不同直径内导体的同轴电缆。如图10-13所示,内导体座14可以形成为具有第二侧壁部分29,该第二侧壁部分29具有比第一侧壁部分16更大的直径。第三内直径槽30和第四内直径槽32与相应的第二弹簧触头34和第二向内突出密封件36相装配。由此,两个不同直径的内导体11可以更替地被接收在单个内触头1的内导体座14中并形成稳固的电互连。表面密封剂27,如上所述,也可以相似地应用到这些附加结构。
本领域的技术人员将会理解本发明可以在最小的工程返工和/或工具修改的前提下容易地与现有的同轴连接器构造结合。例如取决于所需的工作频率,所需的修改可以限于常规内触头构造与根据本发明的内触头1的调换。
根据本发明的内触头提供了位于在内导体11和内触头1之间的电连接部附近的改善的环境密封,由此降低了由于铝合金在机械地耦接到其它金属时金属固有的腐蚀和或氧化导致的连接器失效的风险。根据本发明的内触头1特别地适用于具有铜或其它金属涂覆在外直径表面9周围的铝内导体11的同轴电缆的电连接器中。由于通过用于连接器连接的电缆端准备暴露的内导体11的暴露端和金属涂层边缘被保护而不暴露到湿气和或空气,暴露的铝加速腐蚀和/或相关金属涂层的分层的可能性被降低,特别是当介电油脂在内导体11插入之前被施加到内导体座14中以进一步将空气和/或湿气从电互连区域驱除时。
部件列表
1内触头
3接口端
5电缆端
7连接器组件
9外直径表面
11内导体
13第一弹簧触头
14内导体座
16第一侧壁部分
18第一向内突出密封件
20外导体
24第一内直径槽
25互连表面
26第二内直径槽
27表面密封剂
28内导体接口
29第二侧壁部分
30第三内直径槽
32第四内直径槽
34第二弹簧触头
36第二向内突出密封件
其中在前面描述中所参考的比例、整体或部件具有已知的等价物,这些等价物亦并入于此如同已经独立地进行说明。
尽管本发明已经通过其实施例的描述进行了说明,且对实施例已经非常详细地进行了描述,这并不意味着申请人欲将所附权利要求的范围约束或以任何方式限制到这样的细节。其它的优点和修改对于本领域技术人员来说是容易看到的。由此,本发明在其较宽的方面并不局限于其示出和描述的特定细节、示例性设备、方法以及示例性例子。因此,可以在不背离申请人总的发明构思的精神或范围的前提下,对这些细节进行改变。此外,还可以理解可以在不背离由所附权利要求所限定的本发明的范围和精神的前提下进行各种改善和/或修改。
Claims (18)
1.一种具有接口端和电缆端的同轴电缆连接器内触头,用于与同轴电缆内导体耦接,所述内导体具有外直径表面,该内触头包括:
在接口端的内导体接口;
向电缆端敞开的内导体座;
在该座的第一侧壁部分中的第一内直径槽;
在第一侧壁部分接近电缆端处的第二内直径槽;
第一弹簧触头,其尺寸设置为接合外直径表面,并坐落在第一内直径槽中;
第一向内突出密封件,其尺寸设置为抵靠外直径表面密封,并坐落在第二内直径槽中。
2.如权利要求1所述的内触头,其中第一弹簧触头是弹簧圈。
3.如权利要求1所述的内触头,其中第一弹簧触头是管状环。
4.如权利要求1所述的内触头,其中第一弹簧触头是大致U形的弹簧。
5.如权利要求1所述的内触头,其中第一弹簧触头是V形弹簧。
6.如权利要求1所述的内触头,其中第一弹簧触头具有形成在第一弹簧触头和外直径表面之间的互连表面中的多个切口。
7.如权利要求1所述的内触头,其中所述第一弹簧触头是C形的。
8.如权利要求1所述的内触头,还包括表面密封剂。
9.如权利要求8所述的内触头,其中所述表面密封剂位于第一向内突出密封件上。
10.如权利要求8所述的内触头,其中所述表面密封剂位于内导体座中。
11.如权利要求8所述的内触头,其中所述表面密封剂在第一弹簧触头和外直径表面之间的互连表面上。
12.如权利要求1所述的内触头,还包括内导体座的第二侧壁部分,该第二侧壁部分具有比第一侧壁部分更大的内直径;
在第二侧壁部分中的第三内槽和第四内槽;
坐落在第三内槽中的第二个第一弹簧触头;以及
坐落在第四内槽中的第二个第一向内突出密封件。
13.如权利要求12所述的内触头,还包括在互连表面附近的表面密封剂。
14.一种用于将同轴电缆连接器内触头与同轴电缆内导体耦接的方法,所述内导体具有外直径表面,所述方法包括:
将内导体插入到内触头的座中,经过坐落在该座的第一侧壁部分的第二内直径槽中的第一向内突出密封件,与坐落在第一侧壁部分的第一内直径槽中的第一弹簧触头接触。
15.如权利要求14所述的方法,还包括在将内导体插入到座之前施加表面密封剂到内导体的步骤。
16.如权利要求14所述的方法,还包括在把内导体插入到座之前施加表面密封剂到该座的步骤。
17.如权利要求14所述的方法,其中所述座中的表面密封剂围绕第一弹簧触头和内导体的外直径表面之间的互连区域。
18.一种具有接口端和电缆端的同轴电缆连接器内触头,用于与同轴电缆的内导体耦接,所述内导体具有外直径表面,所述内触头包括:
在接口端的内导体接口;
向电缆端敞开的内导体座;
在该座的第一侧壁部分中的第一内直径槽;
在第一侧壁部分接近电缆端处的第二内直径槽;
弹簧圈,其尺寸设置为接合外直径表面,并坐落在第一内直径槽中;
O形环,其尺寸设置为抵靠外直径表面密封,并坐落在第二内直径槽中;
该O形环涂覆有表面密封剂。
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US12/246,638 | 2008-10-07 | ||
US12/246,638 US7819698B2 (en) | 2007-08-22 | 2008-10-07 | Sealed inner conductor contact for coaxial cable connector |
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CN101714707A true CN101714707A (zh) | 2010-05-26 |
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ID=41349710
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CN200910180224A Pending CN101714707A (zh) | 2008-10-07 | 2009-10-09 | 用于同轴电缆连接器的密封内导体触头 |
Country Status (4)
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US (1) | US7819698B2 (zh) |
EP (1) | EP2184815A1 (zh) |
CN (1) | CN101714707A (zh) |
BR (1) | BRPI0905855A2 (zh) |
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US7819698B2 (en) | 2010-10-26 |
US20090053931A1 (en) | 2009-02-26 |
EP2184815A1 (en) | 2010-05-12 |
BRPI0905855A2 (pt) | 2011-03-29 |
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