CN101944663A - 支承和偏置内接点的绝缘子 - Google Patents

支承和偏置内接点的绝缘子 Download PDF

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CN101944663A
CN101944663A CN201010142196XA CN201010142196A CN101944663A CN 101944663 A CN101944663 A CN 101944663A CN 201010142196X A CN201010142196X A CN 201010142196XA CN 201010142196 A CN201010142196 A CN 201010142196A CN 101944663 A CN101944663 A CN 101944663A
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insulator
connector
inner contact
spring
cable
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CN101944663B (zh
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纳希德·伊斯拉姆
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Commscope Technologies LLC
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Andrew LLC
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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
    • 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
    • H01R9/0527—Connection to outer conductor by action of a resilient member, e.g. spring
    • 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
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5075—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw having an uneven wire receiving surface to improve the contact
    • 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
    • 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
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section
    • 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
    • H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • 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
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing
    • 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
    • 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
    • Y10T29/49227—Insulator making

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  • Coupling Device And Connection With Printed Circuit (AREA)

Abstract

一种用于支承内接点同轴地位于连接器的连接器体孔内的绝缘子，其中连接器用于具有实心外导体的同轴电缆，该绝缘子被形成为整体式体，其具有在连接器端和电缆端之间延伸的内接点孔。内接点孔的尺寸被设计成接收内接点。在连接器端的绝缘子的外直径被构造成与同轴电缆连接器的连接器体孔相匹配。多个弹簧爪从绝缘子的电缆端延伸。弹簧爪的远端每个提供有一个倾斜表面，从而在连接器到电缆的组装期间，实心外导体沿倾斜表面接触弹簧爪，使弹簧爪向内变形，以增加内接点的弹簧支架上的向内偏置。

Description

支承和偏置内接点的绝缘子
技术领域
本发明涉及同轴电缆电连接器。尤其，本发明涉及一种用于同轴连接器的整体式支承内接点的绝缘子，该绝缘子提供支承和改进的内接点耦接功能。
背景技术
同轴电缆连接器被用于，例如，需要高水平电性能、精确度和可靠性的通信系统中。
绝缘子被用于保持并支承内接点同轴地位于同轴连接器体的孔中。当连接器被安装在同轴电缆端上时，以及随后当组合的连接器被附加到期望的连接接口，如其它同轴连接器，或从其分离时，被绝缘子支承的内接点受到安装和相互连接的压力。
为了在同轴连接器的内接点和同轴电缆的内导体之间建立安全的机械互连和优化的电气互连，内接点的电缆端可被形成为弹簧支架(springbasket)，其包括多个弹簧爪，它们向内偏置以牢固地抓紧内导体。为了提高内接点和内导体之间的相互连接的机械和电特性，弹簧爪的维数可被增加。可替换地，弹簧爪结构的稳定状态可被构造成增加弹簧爪的径向向内偏置特性。这些结构中的任何一个都有不可接受地增加连接器到电缆的相互连接期间所需的插入力，和/或为同轴连接器引入不期望的阻抗不连续性的可能。
Eriksen的美国专利NO.7422477“Insulator for Coaxial Cable Connectors”公开了一种整体绝缘子，其配置有与弹簧支架接近的部分，在连接器组装期间，当单独的插头部件向绝缘子的电缆端施加轴向挤压时，该部分围绕弹簧支架径向向内折叠。然而，为了产生绝缘子部件的径向向内折叠所需的轴向挤压力可能为不可接受的高，并且在连接器组装期间一旦施加，可能永久地使绝缘子变形，妨碍连接器的重新使用。
Morris的美国专利NO.4923412“Terminal End For Coaxial Cable”公开了一种三部件绝缘子组件，用于支承内接点，并且在后部螺母被拧到连接器体上时，逐步地使弹簧支架围绕内导体偏置以闭合。当连接器被组装时，对应多个绝缘子部件的互相配合的楔形表面，紧靠内接点的弹簧爪产生径向向内偏置力。然而，多个绝缘子部件带来附加的制造/装配成本和复杂性。
同轴电缆连接器市场中的竞争已经将注意力集中在提高电性能和总成本的最小化上，该总成本包括材料成本、安装人员的培训需求、和所需组装/安装步骤的总数量。
发明内容
因此，本发明的目的是提供一种克服现有技术中的缺陷的连接器。
附图说明
被结合在其中并组成本说明书的一部分的附图说明了本发明的实施例，其中附图中相同的参考标记指示相同的特征或部件，并且可能不在它们出现的附图中为每个附图标记做详细说明，并与上面给出的发明的一般说明，以及下面给出的实施例的详细说明一起，用于解释发明的原理。
图1是使用绝缘子的示例性同轴连接器的示意性局部断面等角图，该连接器被安装在同轴电缆上；
图2是图1的绝缘子的示意性等角图；
图3是图2的示意性横截面侧视图；
图4是使用绝缘子的示例性同轴连接器的示意性横截面图，其准备与同轴电缆最终相互连接；
图5是图4的区域A的特写图；
图6是使用绝缘子的示例性同轴连接器的示意性横截面图，其与同轴电缆耦接；
图7是图6的区域B的特写图。
零件表
1    绝缘子
3    内接点
5    连接器
7    弹簧支架
9     绝缘子弹簧爪
11    倾斜表面
13    外部导体
15    同轴电缆
17    内接触孔
19    连接器端
21    电缆端
23    支架弹簧爪
25    内导体
27    连接器体
29    后部螺母
31    定位表面
33    连接器体孔
35    装配表面
37    绝缘子肩
39    保持突出部
41    保持槽
43    第一弯曲部
45    弹簧支架肩
47    第二弯曲部
49    延伸肩
具体实施方式
如图1所示，根据本发明的示例性绝缘子1提供一个整体绝缘子1部件，其既支承连接器5中的内接点3，又通过具有倾斜表面11的可偏转的绝缘子弹簧爪9提供朝向内接点3的弹簧支架7的逐步向内的偏置，在连接器5/同轴电缆15相互连接期间该倾斜的表面11与外部导体13接触。
最好如图2和3所示，例如通过喷射模塑法和/或加工，绝缘子1可被制造成介质材料如聚合物的整体，其具有在连接器端19和电缆端21之间延伸的内部接触孔17。本领域技术人员将理解，电缆端21和连接器端19是此处使用的描述符，以使绝缘子1的各个部件和主连接器5之间的纵向定位和接触相互关系清楚。除了与沿绝缘子1的纵轴的相邻部件相关的识别位置，每个单独的部件/特征都具有电缆端21侧和连接器端19侧，即，面对主连接器5的各个电缆端21和连接器端19的各个部件/特征的侧。
内部接触孔17的尺寸被设计为接收内接点3。内接点3被提供有多个支架弹簧爪23，它们一起在电缆端21形成弹簧支架7。弹簧支架7的尺寸被设计为接收同轴电缆15的内导体25。
多个绝缘子弹簧爪9从绝缘子1的电缆端21伸出，并围绕内接触孔17。每个绝缘子弹簧爪9的远端被提供有倾斜的表面11，由此，在连接器5与同轴电缆15组装期间，实心的外部导体13的前缘和/或内直径沿该倾斜表面11接触绝缘子弹簧爪9，使绝缘子弹簧爪9向内偏转，以接触弹簧支架7的外直径，从而增加支架弹簧爪23上的向内偏置，增加握力，并从而增加弹簧支架7和内导体25之间的电气互连的质量。倾斜表面11可被恰当排列，例如，与绝缘子1的纵轴成45度角。
为了引导初始连接器体27和同轴电缆15/后部螺母29相互连接，通常与绝缘子1纵轴平行的定位表面31可被提供在每个倾斜表面11的电缆端21。多个定位表面31一起形成绝缘子1沿定位表面31的外直径，其小于实心外导体13的内直径。
绝缘子1被固定在主连接器5的连接器体孔33内，沿装配表面35，沿接近连接器端19的绝缘子1的外直径。绝缘子1可例如通过连接器体孔33的绝缘子肩37被保持在连接器端19。为了减少绝缘子1由于与连接器5的连接器端19相反的力而退出的可能性，例如，在与另一个连接器5或其它连接接口连接期间，向外延伸的保持突出部39被定位为接近每个倾斜表面11的连接器端19，该保持突出部39的尺寸被设计为接合连接器体孔33的相应保持槽41。从而，在连接器5制造期间，绝缘子1可从电缆端容易地插入连接器体孔33，直到固定得紧靠绝缘子肩37，在该位置多个保持突出部39固定在保持槽41中，牢固地将绝缘子1纵向锁定在连接器体27中。
第一弯曲部分43可通过将第一弯曲部分43中的绝缘子1的外径缩小为例如小于绝缘子1接近连接器端19的外径而形成在每个绝缘子弹簧爪9的近端。第一弯曲部分43可纵向地与内接触孔17的弹簧支架肩45对齐，其中内接触孔17的弹簧支架肩45被定位为接近第一弯曲部分43的连接器端19。弹簧支架肩45引进了具有增加的内直径的内接触孔17的面积，其尺寸被设计为从电缆端19接收弹簧支架7。
图4和5说明了准备通过在连接器体27上拧入后部螺母29而最终组装在同轴电缆15上的连接器。当拧入完成时，如图6和7所示，倾斜表面11被向内驱动，通过与外导体13接触，驱动支架弹簧爪23紧靠内导体25。因为同轴电缆15的外导体13的相同前缘/内直径与内导体25同轴，在接触外导体的同时驱动倾斜表面向内，支架弹簧爪23上的最终偏置也是相同的，其提高了最终的电气相互连接性能，例如当相互连接稍后被暴露于弯曲和/或扭转力时。
为了减少绝缘子弹簧爪9在长期直接压力下变形的可能性，第二弯曲部分可通过增加在绝缘子1的延伸肩49和电缆端21之间的内接触孔17的内直径而被增加到绝缘子弹簧爪9的电缆端21。该增加的内直径可以，例如，大于弹簧支架7、第一弯曲部分43的外直径和/或绝缘子1的连接器端19的外直径。
本领域技术人员将理解，通过提供绝缘子为整体部件，可实现可观的制造和组装效率。而且，在终端用户安装期间，错放或错排列多个分散连接器绝缘子和/或驱动部件的可能性可被消除。
因为绝缘子弹簧爪9被变形以形成弹簧支架7上的统一的圆周径向压力，代替轴向挤压力，电相互连接的统一性可被提高，同时可提高安装时后部螺母29的拧入的容易性。而且，因为变形，而不是挤压/折叠动作被施加给绝缘子1，绝缘子1不是永久变形，使得连接器5能够重复使用。
其中前述说明已经参考具有已知的等价物的材料、比例、整数或元件，那么这种等价物如同单独提出一样而被结合在此处。
虽然已经通过实施例的描述说明了本发明，并且虽然实施例被相当详细地描述，但是申请人的意图不是约束或以任何形式限制所附权利要求的范围为如此详细。其它的优点和修改对本领域技术人员将是很明显的。因此，在其更广阔的方面，本发明不限于具体的细节，有代表性的装置、方法以及示出和描述的示意性实例。因此，在不脱离申请人的一般发明内容的精神或范围的情况下，可从这些细节进行改变。而且，应当理解，在不脱离由下面的权利要求限定的本发明的范围或精神的情况下，可对其进行改进和/或修改。

Claims (10)

1.一种用于将内接点同轴地支承在连接器的连接器体孔内的绝缘子，其中连接器用于具有实心外导体的同轴电缆，该绝缘子包括：
整体式体，其具有在连接器端和电缆端之间延伸的内接点孔；
所述内接点孔尺寸被设计为接收内接点；
在连接器端的绝缘子的外径，其被构造成与同轴电缆连接器的连接器体孔相匹配；
多个弹簧爪，其从绝缘子的电缆端伸出；弹簧爪的远端每个提供有一个倾斜表面，从而在将连接器组装到电缆的期间，实心外导体沿倾斜表面接触弹簧爪，使弹簧爪向内变形，以增加内接点的弹簧支架上的向内偏置。
2.权利要求1的绝缘子，进一步包括在每个斜面的电缆端的定位表面；绝缘子在定位表面处具有比实心外导体的内径小的外径。
3.权利要求1的绝缘子，进一步包括向外延伸的保持突出部，其接近每个倾斜表面的连接器端。
4.权利要求1的绝缘子，进一步包括第一弯曲部，其位于每个弹簧爪的近端；绝缘子在第一弯曲部具有比连接器端的外径小的外径。
5.权利要求1的绝缘子，其中内接点孔被提供有接近第一弯曲部的连接器端的弹簧支架肩。
6.权利要求1的绝缘子，其中在内接点的延伸肩和电缆端之间的内接点孔的内径大于绝缘子的连接器端的外径。
7.权利要求1的绝缘子，进一步包括第二弯曲部，其位于延伸肩和电缆端之间；第二弯曲部具有比弹簧支架的外径大的内接点孔内径。
8.权利要求1的绝缘子，进一步包括第二弯曲部，其位于其位于延伸肩和电缆端之间；第二弯曲部具有比第一弯曲部的外径大的内接点孔内径。
9.权利要求1的绝缘子，进一步包括第二弯曲部，其位于其位于延伸肩和电缆端之间；第二弯曲部具有比绝缘子的连接器端的外径大的内接点孔内径。
10.一种用于制造绝缘子的方法，该绝缘子用于将内接点同轴地支承在连接器的连接器体孔内，其中连接器用于带有实心外导体的同轴电缆，该方法包括步骤：
形成一个整体式体，其具有在连接器端和电缆端之间延伸的内接点孔；
所述内接点孔的尺寸被设计为接收内接点；
在连接器端的绝缘子的外径被构造成与同轴电缆连接器的连接器体孔相匹配；
多个弹簧爪从绝缘子的电缆端伸出；弹簧爪的远端每个提供有一个倾斜表面，从而在将连接器组装到电缆的期间，实心外导体沿倾斜表面接触弹簧爪，使弹簧爪向内变形，以增加内接点的弹簧支架上的向内偏置。
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