CN114976784A - 用于电连接器的电缆卡组件的接地结构 - Google Patents
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Abstract
用于电连接器的电缆卡组件(130),包括电路卡(132),电路卡具有上表面(140)和下表面(142)并且在电缆端(124)和配合端(126)之间延伸,配合导体(146)在配合端处且电缆导体(144)在电缆端处。电缆(104)端接至电路卡,电缆包括信号导体(150)、接地屏蔽件和排扰线。信号导体端接到对应的电缆导体。电缆卡组件包括接地块(200),其与电路卡分离且分立并且联接到电路卡。接地块包括接收对应的排扰线(160)的排扰线通道(220)。接地块是导电的以电连接排扰线。
Description
技术领域
本文的主题总体上涉及电连接器。
背景技术
电连接器通常用于电联接各种类型的电气装置以在装置之间传输信号。至少一些已知的电连接器包括电缆组件,电缆组件具有连接在电气装置和电连接器之间的电缆。每个电缆具有信号导体或信号导体的差分对,其由屏蔽层围绕,屏蔽层进而由电缆护套围绕。屏蔽层包括导电箔,其用于屏蔽(多个)信号导体免受电磁干扰(EMI)并且总体上改善性能。排扰线设置在电连接到导电箔的电缆芯处。在通信电缆的端部,可以移除(例如,剥离)电缆护套、屏蔽层和覆盖(多个)信号导体的绝缘体以暴露(多个)信号导体和排扰线。然后,(多个)信号导体的暴露部分机械和电气地联接(例如,焊接)到对应的导体,例如电路卡的信号垫。然而,排扰线的端接是成问题的。通常,排扰线焊接到对应的接地导体,例如电路卡的接地垫或接地总线。焊接排扰线是组装中的额外步骤,这增加了组装时间和组装成本。
因此,需要一种具有改进的接地结构的电连接器。
发明内容
根据本发明,提供了一种用于电连接器的电缆卡组件,其包括具有上表面和下表面的电路卡。电路卡具有电缆端和与电缆端相对的配合端。该电路卡具有在配合端处与配合电连接器配合的配合导体和在电缆端处的电缆导体。电缆端接至电路卡。电缆包括信号导体、围绕对应的信号导体以为信号导体提供电屏蔽的接地屏蔽件,以及电连接到对应的接地屏蔽件的排扰线。信号导体端接到对应的电缆导体。电缆卡组件包括接地块,其与电路卡分离且分立并且联接到电路卡。接地块包括接收对应的排扰线的排扰线通道。接地块是导电的以电连接排扰线。
附图说明
图1是根据示例性实施例的具有插头连接器的通信***的透视图。
图2是根据示例性实施例的插头连接器的分解图,示出了电缆卡组件。
图3是根据示例性实施例的电缆卡组件的一部分的透视图。
图4是根据示例性实施例的电缆卡组件的一部分的透视图。
图5是根据示例性实施例的电缆卡组件的一部分的底部透视图。
具体实施方式
图1是根据示例性实施例的通信***100的透视图。通信***100包括设置在电缆104的端部处的第一电连接器102和安装至电路板108的第二电连接器106。在其他各种实施例中,第二电连接器106可以设置在电缆(未示出)的端部。在示例性实施例中,第二电连接器106是插座连接器,并且在本文中可以称为插座连接器106。第一电连接器102配合至第二电连接器106。在示例性实施例中,第一电连接器102是插头连接器,其配置为可插拔地联接至插座连接器106。例如,插头连接器102的一部分可以插接到插座连接器106的插座中。在示例性实施例中,插头连接器102在可分离的接口处联接至插座连接器106。例如,插头连接器102可闩锁地联接至插座连接器106。连接器102、106可以是输入-输出(I/O)连接器。
插座连接器106包括保持插座触头112的阵列的插座外壳110。在示例性实施例中,插座外壳110包括卡槽114,其形成接收插头连接器102的插座。插座触头112具有可分离的配合接口。插座触头112可以限定可压缩的接口,例如包括可偏转的弹簧梁,其在插头连接器102接收在卡槽114中时被压缩。可选地,插座触头112可以沿着卡槽114的顶部和底部布置成多个行。在各种实施例中,插座连接器106是通信装置,例如卡缘容座连接器。然而,在替代实施例中,插座连接器106可以是另一类型的电连接器,例如串行连接SCSI(SAS)连接器。插座连接器106可以是高速连接器,其以超过10吉比特每秒(Gbps)的速度传输数据信号,例如超过25Gbps。
插头连接器102包括外壳120,其具有接收电缆卡组件130的腔122。外壳120具有电缆端124和与电缆端124相对的配合端126。电缆104从电缆端124延伸。配合端126配置为联接至插座连接器106。电缆卡组件130包括电路卡132。电缆104配置为端接至电路卡132。电路卡132配置为当插头连接器102与插座连接器106配合时插接到卡槽114中。
图2是根据示例性实施例的插头连接器102的分解图。插头连接器102包括外壳120和电缆卡组件130。外壳120将电缆卡组件130接收在腔122中以保持电路卡132和电缆104。在示例性实施例中,电缆卡组件130包括与电路卡132分离且分立的接地块200。
接地块200联接到电路卡132。接地块200可以电连接到电路卡132,例如到电路卡132的接地平面。接地块200为电缆104的信号导体提供电屏蔽。接地块200电连接到电缆104的屏蔽结构,例如到电缆104的排扰线。在示例性实施例中,接地块200以无焊连接联接到排扰线,例如以过盈或压配合连接。接地块200可以以无焊连接联接到电路卡132,例如以过盈或压配合连接。在各种实施例中,可以设置多个接地块200,例如在电路卡132的顶侧和底侧。
电路卡132在电缆端134和配合端136之间延伸。电路卡132在配合端136处具有卡缘138,其配置为插接到插座连接器106(如图1所示)的卡槽114(如图1所示)中。电路卡132包括上表面140和下表面142。电路卡132在电缆端134处包括电缆导体144,其配置为电连接到电缆104的信号导体和屏蔽结构。电缆导体144可以是电路卡132的垫或迹线。电缆导体144可以设置在上表面140和下表面142两者处。电路卡132在配合端136处包括配合导体146,其配置为电连接至插座连接器106的对应的插座触头112(如图1所示)。配合导体146可以是电路卡132的垫或迹线。配合导体146可以设置在上表面140和下表面142两者处。配合导体146设置在卡缘138附近。
电缆104在电缆端134处端接至电路卡132。每个电缆104包括至少一个信号导体和为至少一个信号导体提供电屏蔽的屏蔽结构。在示例性实施例中,电缆104是双轴电缆。例如,每个电缆104包括第一信号导体150和第二信号导体152。信号导体150、152承载差分信号。信号导体150、152配置为端接至电路卡132的对应的电缆导体144。例如,信号导体150、152可以焊接至电缆导体144。电缆104包括围绕信号导体150、152的绝缘体154和围绕绝缘体154的电缆屏蔽件156。电缆屏蔽件156提供围绕信号导体150、152的周向屏蔽。电缆104包括围绕电缆屏蔽件156的电缆护套158。在示例性实施例中,电缆104包括电连接到电缆屏蔽件156的排扰线160。排扰线160配置为电连接至接地块200。
在示例性实施例中,电缆护套158、电缆屏蔽件156和绝缘体154可以被移除(例如,剥离)以暴露信号导体150、152和排扰线160。信号导体150、152的暴露部分然后可以机械和电气地联接(例如,焊接)至对应的电缆导体144。在示例性实施例中,电缆104的端部可以由应变消除元件170围绕。例如,应变消除元件170可以被模制或以其他方式形成在电缆104周围。应变消除元件170可以固定至电路卡132,例如模制到电路卡132。可选地,可以设置多个应变消除元件170,例如上应变消除元件和下应变消除元件。
在组装期间,在电缆104端接至电路卡132和接地块200之后,电缆卡组件130可以被装载到外壳120中,例如到外壳120的后部中。电缆卡组件130可以使用闩锁、紧固件或其他固定装置固定到外壳120中。
图3是根据示例性实施例的电缆卡组件130的一部分的透视图。电缆卡组件130包括电路卡132、端接到电路卡132的电缆104和联接到电路卡132的接地块200。电缆104的排扰线160端接至接地块200。图4是根据示例性实施例的电缆卡组件130的一部分的透视图,示出了端接至接地块200的电缆104之一。
接地块200在前部202和后部204之间延伸。电缆104位于接地块200的后方。例如,电缆104的端部面向并且可以抵靠接地块200的后部204。接地块200包括相对的第一侧206和第二侧208。接地块200在侧面206、208之间具有宽度,该宽度近似等于电路卡132的宽度。接地块200具有内端210和与内端210相对的外端212。内端210面向电路卡132。例如,上接地块200的内端210是配置为安装至上表面140的底部,而下接地块200的内端210是配置为安装至下表面142的顶部。上接地块200的外端212是顶部,而下接地块200的外端212的配置为安装至下表面142的顶部。
接地块200在外端212中包括排扰线通道220。排扰线通道220接收对应的排扰线160。在示例性实施例中,排扰线160被压配合到排扰线通道220中。排扰线160可以通过过盈配合保持在排扰线通道220中。在示例性实施例中,排扰线160通过无焊连接端接到接地块200,这减少了组装时间和组装成本。在示例性实施例中,排扰线通道220在后部204处敞开以接收排扰线160。例如,排扰线160可以从绝缘体154的前方延伸到排扰线通道220中。可选地,排扰线通道220可以在外端212处敞开以接收排扰线160。例如,排扰线160可以从上方(或者,在接地块在电路卡132的底侧的情况下,从下方)装载到排扰线通道220中。
在示例性实施例中,排扰线通道220遵循后部204和前部202之间的非线性路径。例如,接地块200包括延伸到排扰线通道220中的一个或多个干涉凸块222。接地块200可以包括与干涉凸块222相对的释放槽224,以为排扰线160提供空间。在示例性实施例中,接地块200在排扰线通道220的两侧包括干涉凸块222。排扰线160遵循经过排扰线通道220的曲折路径,围绕干涉凸块222弯曲,以在排扰线160和接地块200之间形成机械干涉。排扰线160和接地块200之间的机械连接使接地块200与排扰线160共电位。在示例性实施例中,接地块200用于使每个排扰线160共电位。可选地,接地块200可以包括帽(未示出),其部分地延伸跨越排扰线通道220的开口,以将排扰线160固持在排扰线通道220中。
在示例性实施例中,接地块200包括从后部204延伸的外壁230。外壁230与电路卡132间隔开,以形成接收电缆104的端部的空间232。可选地,外壁230可以通过开口234彼此间隔开。开口234与排扰线通道220对准。排扰线160可以延伸穿过开口234进入排扰线通道220中。
在示例性实施例中,接地块200在内端210处包括隧道240。隧道240由分隔壁242分开。分隔壁242从外端212延伸到内端210。分隔壁242在前部202和后部204之间延伸。隧道240在后部204处敞开以接收电缆104的信号导体150、152(如图2所示)。可选地,隧道240可以在前部202处敞开。替代地,隧道240可以通过前壁在前部202处闭合。分隔壁242为隧道240中的信号导体150、152提供屏蔽。
图5是根据示例性实施例的电缆卡组件130的一部分的底部透视图,示出了接地块200的一部分和对应的电缆104。电路卡132(如图3所示)被移除以示出电缆104的延伸到接地块200的隧道240中的导体150、152。
分隔壁242为信号导体150、152提供屏蔽。分隔壁242与信号导体150、152间隔开。可选地,分隔壁242以及分隔壁242之间的连接壁244的形状和位置相对于导体150、152设定以进行阻抗控制。例如,分隔壁242和连接壁244可以距导体150、152两者维持相对恒定的间隔。例如,连接壁244可以具有弯曲的阻抗轨246,其沿着连接壁244在分隔壁242之间近似居中。阻抗轨246可以与导体150、152之间的间隙对齐。阻抗轨246是波浪状的,从而比连接壁是平的情况更好地维持连接壁244与导体150、152之间的间隔。在示例性实施例中,分隔壁242在后部204处包括阻抗凸部248。阻抗凸部248与导体150、152的过渡部分对齐,过渡部分例如是导体150、152从绝缘体154的端部离开处到导体150、152焊接到电路卡232的部分的位置。阻抗凸部248向内张开,以使接地块200在过渡部分比在焊接部分更靠近导体150、152,在焊接部分,阻抗更低。阻抗凸部248降低了沿着过渡部分的阻抗,以沿着导体150、152进行阻抗匹配。
在示例性实施例中,接地块200在内端210处包括安装针脚250。安装针脚250配置为联接至电路卡132(如图2所示)。例如,安装针脚250配置为接收在电路卡132的镀覆接地通孔中。在示例性实施例中,安装针脚250被压配合到接地通孔中以将接地块200电连接至电路卡132。在示例性实施例中,安装针脚250从分隔壁242延伸。可选地,多个安装针脚250可以从每个分隔壁242延伸,以为接地块200提供多个机械和电气接触点。在示例性实施例中,安装针脚250包括按压肋252和按压肋252之间的凹部254。按压肋252和凹部254竖直地延伸。按压肋252可以在与电路卡132的镀覆接地通孔配合时变形。在示例性实施例中,安装针脚250在接地块200和电路卡132之间形成无焊连接。例如,安装针脚250被压配合到电路卡132的镀覆通孔中,以在接地块200和电路卡132之间形成机械和电气连接。
Claims (13)
1.一种用于电连接器(102)的电缆卡组件(130),包括:
电路卡(132),具有上表面(140)和下表面(142),所述电路卡具有电缆端(134)和与所述电缆端相对的配合端(136),所述电路卡在所述配合端处具有配合导体(146)以与配合电连接器配合,所述电路卡在所述电缆端处具有电缆导体(144);
电缆(104),端接到所述电路卡,所述电缆包括:信号导体(150,152),围绕对应的信号导体以为所述信号导体提供电屏蔽的接地屏蔽件,以及电连接到对应的接地屏蔽件的排扰线(160),所述信号导体端接到对应的电缆导体;以及
接地块(200),所述接地块与所述电路卡分离且分立并且联接到所述电路卡,所述接地块包括接收对应的排扰线的排扰线通道(220),所述接地块是导电的,以电连接所述排扰线。
2.如权利要求1所述的电缆卡组件(130),其中,所述排扰线(160)被压配合到所述排扰线通道(220)中。
3.如权利要求1所述的电缆卡组件(130),其中,所述排扰线(160)以无焊连接电连接到所述接地块(200)。
4.如权利要求1所述的电缆卡组件(130),其中,所述接地块(200)在前部(202)和后部(204)之间延伸,所述接地块具有安装到所述电路卡的内端(210)和与所述内端相对的外端(212),所述排扰线通道(220)在所述外端处敞开以接收所述排扰线(160)。
5.如权利要求4所述的电缆卡组件(130),其中,所述排扰线通道(220)沿着所述外端(212)在所述后部(204)和所述前部(202)之间延伸,所述排扰线通道在所述后部处敞开以接收所述排扰线(160)。
6.如权利要求4所述的电缆卡组件(130),其中,所述接地块(200)在所述后部(204)和所述前部(202)之间包括隧道(240),所述隧道接收对应的信号导体(150)。
7.如权利要求4所述的电缆卡组件(130),其中,所述接地块(200)包括从所述内端(210)延伸的安装针脚(250),所述安装针脚联接到所述电路卡(132)。
8.如权利要求7所述的电缆卡组件(130),其中,所述电路卡(132)包括接地通孔,所述安装针脚(250)压配合到所述接地通孔中以将所述接地块(200)电连接到所述电路卡。
9.如权利要求1所述的电缆卡组件(130),其中,所述接地块(200)包括接收在所述电路卡(132)的接地通孔中的安装针脚(250),所述安装针脚被压配合到所述接地通孔中,从而以无焊连接将所述接地块电连接至所述电路卡。
10.如权利要求1所述的电缆卡组件(130),其中,所述排扰线通道(220)沿着非线性路径延伸,所述排扰线(160)遵循所述非线性路径。
11.如权利要求1所述的电缆卡组件(130),其中,所述接地块(200)包括干涉凸块(222),所述干涉凸块延伸到所述排扰线通道(220)中,以通过过盈配合接合所述排扰线(160)。
12.如权利要求1所述的电缆卡组件(130),其中,所述接地块(200)包括在所述接地块的后部和前部之间延伸的隧道(240),所述隧道通过分隔壁(242)分隔开,每个通道接收信号导体的对,所述分隔壁在信号导体的对之间提供电屏蔽。
13.如权利要求12所述的电缆卡组件(130),其中,所述分隔壁(242)包括从所述分隔壁延伸的安装针脚(250),所述安装针脚压配合到所述电路卡(132)的接地通孔中以将所述接地块(200)电连接至所述电路卡。
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US8840432B2 (en) * | 2012-04-24 | 2014-09-23 | Tyco Electronics Corporation | Circuit board and wire assembly |
US9203193B2 (en) | 2013-10-17 | 2015-12-01 | Tyco Electronics Corporation | Electrical device having a circuit board and a differential pair of signal conductors terminated thereto |
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US10615524B2 (en) * | 2015-03-18 | 2020-04-07 | Fci Usa Llc | Electrical cable assembly |
US10103493B2 (en) * | 2016-01-26 | 2018-10-16 | Belden Canada Inc. | Method of maintaining cross talk in different zones of an assembly for interconnecting a cable |
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