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CN1301419A - 用于电插塞连接近端串话干扰补偿的触点副布置 - Google Patents

用于电插塞连接近端串话干扰补偿的触点副布置 Download PDF

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CN1301419A
CN1301419A CN99806390A CN99806390A CN1301419A CN 1301419 A CN1301419 A CN 1301419A CN 99806390 A CN99806390 A CN 99806390A CN 99806390 A CN99806390 A CN 99806390A CN 1301419 A CN1301419 A CN 1301419A
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CN1169264C (zh
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M·格维尔兹多夫斯基
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TE Connectivity Germany GmbH
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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
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/646Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00 specially adapted for high-frequency, e.g. structures providing an impedance match or phase match
    • H01R13/6461Means for preventing cross-talk
    • H01R13/6467Means for preventing cross-talk by cross-over of signal conductors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/60Contacts spaced along planar side wall transverse to longitudinal axis of engagement
    • H01R24/62Sliding engagements with one side only, e.g. modular jack coupling devices
    • H01R24/64Sliding engagements with one side only, e.g. modular jack coupling devices for high frequency, e.g. RJ 45
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/6608Structural association with built-in electrical component with built-in single component
    • H01R13/6625Structural association with built-in electrical component with built-in single component with capacitive component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S439/00Electrical connectors
    • Y10S439/941Crosstalk suppression

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Abstract

本发明涉及用于电插塞连接,尤其是用于RJ-45-插塞连接的触点副(1,2;3,6;4,5;7,8;201,202;203,206;204,205;207,208)布置,为了补偿近端串话干扰,带有相互间棋盘式配置的触点副,其中为了补偿存在触点(4,5)交叉,其中交叉点(11)位于插座触点(1,2;3,6;4,5;7,8)的弹性支承部位。

Description

用于电插塞连接近端串话干扰补偿的触点副布置
本发明涉及用于电插塞连接近端串话干扰补偿的触点副布置。
由于在两个触点副之间的磁耦合和电耦合使触点副在相邻的触点副中感应出电流或感应电荷,于是出现串话干扰。为了防止近端串话干扰触点副相互间可以非常远地分开设置或在触点副之间设置屏蔽层。但是如果在结构上要求触点副必需相互间紧密设置时,则上面所述措施就不能实行并且必需进行近端串话干扰补偿。
最广泛应用于对称数据电缆的电插塞连接是RJ-45插塞连接,根据技术要求这种连接具有不同的结构形式是公知的。例如公知的5类RJ-45插塞连接在全部四对触点副之间在100MHz传输频率时存在>40dB的串话阻尼。由于RJ-45的不利接线布置受结构限制地特别是对于两对触点副3,6和4,5之间的插头由于其棋盘式配置导致很高的串话干扰,这种干扰限制了在高传输频率情况下的使用。但是出于对目前插头相容性的原因接线布置是不能改变的。由于这种不利的结构布置而必须对于5类在100MHz情况下达到>40dB的近端串话干扰采取特殊措施。所有公知的措施都没有提及插头而是对近端串话干扰通过在插座里的补偿措施进行改善。
在此触点副的交叉是公知的,由此在交叉区后面产生反相的串话干扰。对此在EP0525703A1中描述了在线路板上两根导线4和5的交叉而在WO94/06216中描述了在线路板上两根导线3和6的交叉。同样由EP0601829A2也公知不同触点副芯线的扭绞。在EP0692884A1发明了通过对再下一个触点直接附加电容而进行补偿。EP0598192A1描述了通过对于触点的交叉进行加长并多次卷绕的触点而进行补偿的解决方案,在此补偿在交叉后面通过连续的接触和隔断连接而产生。
所有公知的解决方案都是在插座里面的补偿措施,但是其中串话干扰区与有效补偿区之间的距离太大。为了在插座里实现弹力和动触点的可靠敷设动触点,动触点要相对长地构成,使交叉在线路板上使用加长的固定触点或使用更加远离的扭绞连接芯线。通过这些公知补偿措施的增益因此受到限制,使得用于200MHz的插塞连接采用这些公知的方案不能实现,因为对于更高频的近端串话干扰不能被充分补偿。
由此提出了本发明的技术问题,实现用于具有足够传输阻尼的更高传输频率的电插塞连接,尤其是RJ-45插塞连接的带有至少两对相互间棋盘式配置的触点副布置。另一个技术问题是实现高传输频率的电插塞连接,这种电插塞连接向下兼容公知的5类插塞连接。
这些技术问题通过权利要求1和8的特征得到解决。通过交叉点设置在插座触点的弹性支承部位上使补偿位置移到产生串话干扰位置附近的补偿区,即触点区,使得可以达到明显更高的临界频率。通过在插头接线区里分开的触点位置来这样降低由线材外皮产生的误差,使得可以与触点布置相关地为插座实现更高的传输频率,而触点布置也兼容于5类。其它的本发明具有优点的结构由从属权利要求给出。
在另一个优选实施例中交叉点直接位于接触区后面,这将使串话干扰区与补偿区之间的距离最小,以至于可以忽视基于传播时间的相位移。
在另一个优选实施例中相互间棋盘式配置的触点副的触点在接触区平行引导,其中中间触点与外侧触点走向相反,由此使中间触点无电流部位电感去耦(分开)。接着中间触点形成交叉并弯曲180°再平行于第一部位构成。这将使所产生的串话干扰直接在交叉点后面交换符号并产生来自接触区的串话干扰补偿。
为了实现足够的弹力,相互间棋盘式配置的触点副的触点接着以锐角弯曲并平行于接线区引导。为了分开和并由此限定补偿区中间触点,在接线区前再一次与外侧触点弯离并又平行于外侧触点引导。
为了减少相互间棋盘式配置的触点副的外侧触点对非棋盘式配置的触点副的串话干扰,外侧触点在接触区同向平行于中间触点引导,在分开位置弯曲并接着平行于相互间棋盘式配置的触点副的触点引至接线区。
为了改善补偿增益,有针对性地将插头上的串话干扰选择得较大并接着再进行补偿,其中补偿区最好分成两个部位区,即一个补偿区在插座而一个补偿区在插头的接线区,为此中间触点同样交叉。
在另一个优选的实施例中插头补偿区里的中间触点以小于串话干扰区里的导线阻抗构成,使得在相互间棋盘式配置的触点副的触点之间产生占优势的电容耦合,电容耦合补偿插头/插座过渡区里电容耦合的主要部分,在过渡区里插座和插头的触点无电流部位受到电容影响。
外侧的非棋盘式配置的触点副相互间平行引导,其中触点副在接触区为了与相互间棋盘式配置的触点副的触点分开而反向引导。为了更好地与插座触点分开,外侧触点在连接到接触区上存在弯曲。
下面根据优选实施例详细解释本发明。图示为:
图1RJ-45插塞连接的触点布置(现有技术),
图2按照图1的布置产生的耦合,
图3用于RJ-45插座的相互间棋盘式配置的触点副的轴侧图,
图4按照图3的布置的侧视图,
图5用于RJ-45插座的四对触点副的侧视图,
图6用于RJ-45插头的相互间棋盘式配置的触点副在接线区的简图,
图7a两个均质导线近端串话干扰模型,
图7b按照图7a的模型带有一次补偿,
图7c按照图7a的模型带有双倍补偿,
图8图7a-c模型的频率曲线,
图9图6的触点布置带有交叉和补偿,
图10用于RJ-45插头的所有四对触点副的侧视图,
图11图5的触点布置第一轴侧图,
图12图5的触点布置第二轴侧图,
图13图5的触点布置第三轴侧图,
图14图10的触点布置第一轴侧图,
图15图10的触点布置第二轴侧图。
在图1a中画出了用于RJ-45插塞连接的插脚配置。RJ-45插塞连接包括四对触点副1,2;3,6;4,5;7,8。此外触点副的从属触点不总是直接邻接的,而是两对中间的触点副3,6和4,5相互间棋盘式配置,这将产生特别强烈的串话干扰。对于四对触点副在触点副之间存在六种在图2中简图表示的耦合,其中线条密度象征着耦合强度。
由于目前解决方案的补偿措施只是降低插座里的串话干扰而插头里的串话干扰仍然存在,出于希望向下兼容5类插塞连接,对于插塞连接的改善插头里的串话干扰不能随意地减少。因此改善首先优先在插座里进行。下面画出了单个措施,所有的单个措施正是共同的发明本质。
在图3中画出了中间的、相互间棋盘式配置的触点副3,6和4,5的轴侧图。为了改善插座里的补偿增益要减小接触区10与补偿区之间的距离,在接触区插头的触点接触插座的触点。此外在原理上公知的触点4和5的交叉布置在插座触点的可移动部位上。如图3所示,交叉11直接紧接着接触区10实现,其中补偿区直接在交叉11后面。
现在根据图4所示的图3侧视图来详细解释图3触点布置的补偿功能。被分开的触点副的触点3和6平行并完全恒等地构成,从接触区10开始在第一部位区31,61向左,在弯曲32,62之后转入直线部位区33,63并向右终结在接线区90,接线区例如可以是线路板。
中间触点副的触点4和5在接触区41,51平行于触点3和6延伸并以相反的方向向右形成180°的弯曲42,52,在此两个触点交叉,即从上面看触点4占据触点5的位置而触点5占据触点4的位置。在交叉11之后两个触点4和5相互平行并平行于接触段31和61延伸。在又一个弯曲44,54之后触点4和5与3和6位于相同的平面。
通过接触区31,61,43,53以及33,63,45,55的平行度,同时开始在交叉11以及弯曲42,52后面进行补偿。为了限定补偿区,两个触点4和5以弯曲46,56离开补偿区并分开地终结在接线区90。
为了实现必要的弹力,接触段31,32和41,42,43,44和51,52,53,54和61,62是可移动的,而其它接触段则固定在插座里。通过在触点的移动部位区布置交叉11,使串话干扰区与补偿非常紧密地邻接。
通过从接触区触点3和6向左而触点4和5向右的反向继续延伸,串话干扰在接触区31,41,51,61只局限于电成分,因为在此相反方向流动的电流几乎不受影响。
在图5中画出了用于RJ-45插塞连接插座的全部触点布置。为了实现5类兼容性对于外侧触点副1,2和7,8串话干扰的最佳化在插座里无需针对性地补偿。因此串话干扰对外侧触点副最小。为了减小插座接触区触点3与1,2以及6与7,8之间的串话干扰,触点1,2,7,8相对于相邻的触点3,6反向地构成。外侧触点副1,2和7,8在两对触点副3,6和4,5之间差不多分开的位置高度上实现继续导引。
由于兼容性要求,在改善的插头里必须在触点副36和45之间保留相应的串话干扰。对目前的5类插头通过公知的通常的对触点芯线直接敷外皮,出现由芯线位置所决定的在串话干扰中的相对较大误差,但是对于满足5类指标还是足够的。对于在更高频率下插头的使用还必需在插头上进行一些改善。
在图6中画出了相互间棋盘式配置的触点副203,206;204,205的俯视图。触点203,204,205,206相互间完全平行地延伸。只是在接线区214,触点204,205以及203,206相互拉开,使得在接线区214由于触点副的距离触点副进一步分开。如图6所示,这一点可以通过触点副的反向弯曲或也可以通过触点副的一次简单弯曲来实现。改善的插头的触点布置的增益方式在于,现存的通常较大的在串话干扰中的误差被限制并且串话干扰被限定在下误差值,该误差值仍满足5类并与插座里的补偿一致。串话干扰固定在确定值通过嵌在塑料体里的固定触点而实现,为了产生必要的串话干扰,触点平行地延伸。为了在连接触点时继续限制电缆的影响,触点相互拉开以明显限制串话区并且芯线在差不多分开的位置里敷外皮。由于解扭绞产生的芯线不确定位置几乎不影响串话干扰值。
这种形式的插头与前面描述的插座一起对于也可以通过测量技术控制的更高传输频率下的近端串话干扰带来了明显更好的指标。为了进一步改善频率特性,在插头上的触点副203,206和204,205之间有针对性地将插头内的串话干扰选择得较大并通过紧接着的补偿再纠正。这里补偿这样来选择,使插头仍以5类必需的指标供货。在描述触点布置上的转变之前,应该详细解释其中的作用原理。与前面所述的插座触点布置组合在一起,整个插头连接如同一个串话干扰区带有两个补偿区一样,即一个在插座而一个在插头,相对于一次补偿它提供了明显更好的补偿增益,这一点在下面根据两个耦合的双导线的简单布置在图7a-c中解释。
按照图7a在两个平行的均质导线之间的近端串话干扰一直上升至确定的临界值20dB/Dek,就如同第一个装置的高通滤波器。如果这种串话干扰例如通过图7b的第二导线段被补偿,其中为此导线副已经交叉,这样得到在最佳补偿情况下的近端串话干扰界限曲线,界限曲线以40dB/Dek上升。这一界限曲线可以清楚地通过串话干扰区与补偿区之间的平均距离d来解释,通过补偿区延伸的信号具有双倍距离d的传播时间。这一点将导致附加的由频率决定的相位移,为了串话干扰的释放,相位移起到力争180°偏差的作用。d=λ/4的距离已经由于双倍的路程长度影响到附加的相位颠倒,使得在这种情况下产生的串话干扰双倍于未补偿的串话干扰区的串话干扰。仔细的观察得到这一结论,这种补偿的增益只用于距离为d<λ/12。
对于补偿增益为20dB这个距离必需为十分之一,即大约d=λ/120。对于频率为200MHz,根据包围的塑料材料得出波长为大约1m,即对此距离必需为大约8mm。示例指出了如何根据插头尺寸来确定补偿边界。尺寸为8mm的RJ-45插头连接由于机械的原因几乎不能缩短,而且20dB的增益也不足够。
如果将补偿区分成相等的两部分并敷设在串话干扰区前和后,则得到如图7c的布置。通过分区得到两个补偿信号,其平均传播时间与串话干扰区里的传播时间是相等的。这样不再存在取决于频率的相位移,串话干扰信号与补偿信号之间的相位差保持180°,其中对称结构是可预见的。由此得到一个明显改善的补偿增益值。对于精确的补偿,近端串话干扰的界限曲线可以达到60dB/Dek。这个界限由此清楚地完成,即补偿数值由于两个补偿在几何图形上的分开而使高频率降低。如果两个补偿距离的数值为1.5d=λ/4,即d=λ/6,则存在两个相反的符号,补偿是无效的。补偿无效的临界频率双倍于一次补偿的临界频率。在图8中可以了解到这种补偿形式的增益与近端串话干扰曲线一起更大地上升。在图8中频率曲线已经能以四股扁平带缆在测量技术上控制。
在图9中画出了中间触点203,204,205,206的触点布置。为了产生前面所提到的双倍补偿,两个中间触点204,205构成交叉,其中交叉点212的右边位于串话干扰区211而交叉点212的左边位于补偿区213,交叉点构成了补偿的第一部分,而第二补偿区位于插座。此外触点203,204,205,206在补偿区213与在串话干扰区211相比具有低的导线阻抗,这例如通过不同的直径或触点形状来实现。由此占优势的电容耦合发生于补偿区里的两个触点副上。这补偿了插头/插座过渡区里电容耦合的主要分量,在过渡区无电流的插头触点端且主要是插座触点端起到电容作用。通过这种措施插头连接也得到对于这种频率范围下必要的较好的远端串话干扰值。也可以选择带有不同导线阻抗的措施敷设或分开在插座里交叉的后面。在加工技术方面这种电容实现在插头的冲压成形触点上比在插座里简便,它们的触点是由线材制造的。
在图10中画出了插头的全部触点布置。为了中间触点203,206,204,205与外侧触点201,202,207,208之间的分开,外侧触点在接触区210反向延伸。显然,电流在外侧触点中从上向下流动,而在中间触点则从下向上流动。所有触点在其触点端部以半径构成,以改善与插座静触点的接触。此外外侧触点201,202,207,208直接在接触区210具有弯曲215,弯曲用于与插座触点更好的分开。外侧触点201,202,207,208从接触区210到接线区214的引导在另一个平面这样平行于中间触点203,206,204,205实现,使得产生中间触点与外侧触点的分开。在接线区的电缆接头成对地实现并通过类似矩阵2×2布置在空间上相互分开,使得由于不确定的扭绞而产生的电缆影响是微小的。
在图11-13中画出了用于带有线路板91并配备切缝-夹紧触点92的插座触点布置的不同轴侧图。触点被画出的是没有装入的状态,即没有插座体。如果将触点装入没有画出的插座体时,八个触点相互平行并处于必要的应力下。用于触点1,2和4,5和7,8的线路板上的焊接孔是错置的,以保证必需的漏电路径的最小距离。
在图14和15画出了插头触点布置的轴侧图,其中触点201-208在接线区214由透穿连接216构成。两对相互间棋盘式配置的触点203-206在补偿区213平面地构成,以降低相对于串话干扰区211的导线阻抗。此外触点201-208在接触区210构成卡钩217,用于固定没有画出的插头体。
附图标记1  触点(插座)    41触点4的部分区 90接线区(插座)2  触点(插座)    42触点4的部分区 91线路板3  触点(插座)    43触点4的部分区 92切缝-夹紧-触点4  触点(插座)    44触点4的部分区 201触点(插头)5  触点(插座)    45触点4的部分区 202触点(插头)6  触点(插座)    46触点4的部分区 203触点(插头)7  触点(插座)    51触点5的部分区 204触点(插头)8  触点(插座)    52触点5的部分区 205触点(插头)10 接触区(插座)  53触点5的部分区 206触点(插头)11 交叉点(插座)  54触点5的部分区 207触点(插头)31 触点3的部分区 55触点5的部分区 208触点(插头)32 触点3的部分区 56触点5的部分区 210接触区(插头)33 触点3的部分区 61触点6的部分区 211串话干扰区(插头)
             62触点6的部分区 212交叉点(插头)
             63触点6的部分区 213补偿区(插头)
                             214接线区(插头)
                             215弯曲(插头)
                             216透穿连接
                             217卡钩

Claims (15)

1.用于电插塞连接尤其是用于RJ-45-插塞连接的插座触点副布置,带有至少两个相互间棋盘式配置的触点副,其中触点在插座体中对于接线区局部地固定设置而对于接触区弹性设置,并且至少相互间棋盘式配置的触点副的两个触点是交叉的,其特征为,触点(4,5)的交叉点(11)位于触点(4,5)的弹性支承部位。
2.如权利要求1的布置,其特征为,交叉点(11)可以直接连接在接触区(10)。
3.如权利要求2的布置,其特征为,触点(3,6)在第一部位区(31,61,41,51)里平行于共同接触区(10)的触点(4,5)以相反方向引导,触点(4,5)接着在第二部位区(42,52)转过180°并构成交叉而在接着的部位区(43,53)里又平行于第一部位区(31,61,41,51)引导。
4.如权利要求3的布置,其特征为,触点(3,6;4,5)在紧接着的部位区(32,62,44,54)里弯曲并平行地引导。
5.如权利要求4的布置,其特征为,触点(4,5)朝着接线区(90)在部位区(46,56)弯曲并以对于触点(3,6)分开的位置平行于这些触点引导。
6.如权利要求3至5之一的布置,其特征为,相互间非棋盘式配置的触点副(1,2;7,8)在部位区(41,51)同向平行于触点(4,5)引导,在交叉点(11)构成弯曲并紧接着平行于触点(3,6;4,5)引导到接线区(90)。
7.用于电插塞连接的插座,包括插座体和一套触点,其特征为,触点(1,2;3,6;4,5;7,8)由按照权利要求1至6的布置构成。
8.用于电插塞连接尤其是用于RJ-45-插塞连接的插头的触点副布置,带有至少两个相互间棋盘式配置的触点副,其特征为,相互间棋盘式配置的触点(3,6;4,5)在接触区(210)与接线区(214)之间为了形成确定的串话干扰区(211)而相互间平行且无交叉地构成,并在接线区(214),两对触点副(3,6;4,5)相互以分开的位置引导。
9.如权利要求8的布置,其特征为,触点(3,6;4,5)在串话干扰区(211)的触点长度和/或距离这样来选择,使得出现与5类插头相比更大的串话干扰。
10.如权利要求9的布置,其特征为,在串话干扰区(211)与接线区(214)之间触点(204,205)交叉并构成补偿区(213)。
11.如权利要求10的布置,其特征为,触点(203,206;204,205)在补偿区(213)里的导线阻抗低于在串话干扰区(211)里的导线阻抗。
12.如权利要求11的布置,其特征为,触点(203,206;204,205)在补偿区(213)里扁平地构成。
13.如权利要求8至12之一的布置,其特征为,触点(201,202;207,208)相互间平行构成并在接触区(210)相对于触点(3,6;4,5)反向引导。
14.如权利要求9的布置,其特征为,触点(201,202;207,208)在连接到接触区(210)上具有弯曲(215)。
15.用于电插塞连接的插头,包括插头体和一套触点,其特征为,由按照权利要求8至14的布置构成。
CNB998063908A 1998-05-20 1999-05-12 用于电插塞连接近端串话干扰补偿的触点对布置 Expired - Fee Related CN1169264C (zh)

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ATE252776T1 (de) 2003-11-15
KR20010043701A (ko) 2001-05-25
IL139509A0 (en) 2001-11-25
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CA2331623A1 (en) 1999-11-25
NO318717B1 (no) 2005-05-02
ZA200006510B (en) 2001-06-04
WO1999060671A1 (de) 1999-11-25
CZ20004283A3 (cs) 2002-01-16
EP1080518B1 (de) 2003-10-22
SA99200137B1 (ar) 2006-05-20
BG64015B1 (bg) 2003-09-30
ID26813A (id) 2001-02-08
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HUP0105009A2 (hu) 2002-04-29
PL344290A1 (en) 2001-10-22
ES2209442T3 (es) 2004-06-16
UA58592C2 (uk) 2003-08-15
BR9910608A (pt) 2001-01-09
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SK286693B6 (sk) 2009-03-05
AU4143399A (en) 1999-12-06

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