CN1185839A - 光纤接合夹具和应力释放 - Google Patents
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
- G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
- G02B6/3636—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
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- G02B6/4454—Cassettes with splices
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4471—Terminating devices ; Cable clamps
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- G—PHYSICS
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- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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- G02B6/255—Splicing of light guides, e.g. by fusion or bonding
- G02B6/2558—Reinforcement of splice joint
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Abstract
护套光缆(26)或带状光缆(28)的夹具(30)具有沿上表面(34)延伸的凹槽(32),以及以非变形应力释放的形式对从那里嵌入的护套光缆(26)进行固定的紧缩件(42)。凹槽(32)之间的凸起(40)包括以非变形应力释放的形式对其中的带状光缆(28)进行固定的窄缝(44)。接合夹具(24)具有第一凹槽(70),第一凹槽被紧固件(76)分为高端和低端(80,82),每一端分别固定单-光纤接合耦联器(84)。第二凹槽(90)直径很大用来固定与带状光缆一起使用的多-光纤集中熔合接合耦联器(94)。第一和第二凹槽(70,90)都具有入口宽度比从那里嵌入的接合耦联器(84,94)窄的紧缩件。接合夹具(24)可以附着在接合托架(10)的底壁(14)上。
Description
本发明涉及光纤互连领域,更明确地说是涉及光缆的应力释放元件和夹具。
在多光纤互连配置中,许多对相关的光纤被互连,并且这种互连必须被安全而仔细地固定,通常被固定在一个大的外壳或箱内的组织器托架或盒中,而且通常是一列这样的托架或盒。该托架必须固定大量邻近连接或接合处的光纤部件,以便不需替换光缆即可修理接合。优选地,该托架或盒还要在托架端部固定包括一根或多根光纤在内的光缆的护套部分。接合连接包括相关光纤的端点熔合或末段熔合,或粘着搭接,或精确钳紧,而且如此熔合的光纤末端优选地保持在保护性套管或适配器中以保持光纤的精确校准并为耦联器提供一定水平的物理保护和应力释放。
一个把光缆固定在组织器托架端部的传统方法是应用伸入每一端部的托架底壁上的孔中并夹住每一个光缆护套部分的光缆连接件,或是以相同的方式使用光缆钳。在托架中,把光纤从光纤末端的护套中剥出以便接合或耦联,同时该接合连接被保持在刚好位于托架末端或光缆出口之间的沟形夹具中。
期望在托架或组织器或盒的光缆出口处提供一个应力释放元件,它对光纤光缆的护套部分提供足够强的钳制力以消除接合连接或耦联中产生的应力,且不在那里压缩或使光纤变形。
期望对许多对相关光纤的接合连接阵列提供夹具。
还期望对多光纤带状光缆的钳制提供应力释放元件,从而限定应力释放。
本发明包括用于带有弹性材料构件的光纤元件的夹具,包括一列容纳护套光缆的凹槽。凹槽由其间的凸起界定。凸起中的至少一个具有平行于凹槽延伸的窄缝。窄缝带状光缆的厚度互补并具有把带状光缆容纳在那里的足够深度。
本发明进一步包括带有弹性材料构件并包括一列凹槽的光纤元件夹具。凹槽中的至少一个的深度等于单一光纤接合耦联直径的二倍并沿着凹槽上表面具有第一紧固件。沿着凹槽的侧面、在凹槽上表面和底部之间的位置上具有第二紧固件,它界定了高端和低端凹槽部件。
本发明的一个实施方案现在将通过参照附图用举例的方式进行描述。
图1是本发明的在其末端具有光缆应力释放元件且接合夹具刚好位于其间的接合托架的等角图;
图2是图1中接合夹具的等角图,其中包括固定于其上的、典型的单-光纤护套光缆和典型的带状光缆;
图3和4是接合夹具的平面图和正视图;
图5是图3沿线5-5的放大的剖面图,显示了在光缆连接孔处的带状光缆容纳窄缝和光缆容纳凹槽;和
图6是图4末端部分的放大图。
接合托架或组织器10包括托架体12,具有底壁14,相对的末端16、18和相对的侧壁20、22,还有优选的可任选的保护托架体12的透明外封元件(未示出)。接合夹具24紧固在底壁14上,底壁14位于末端16、18之间,并在未端16、18中安置了单-光纤光缆的相关光纤对的接合连接,或相关带状光缆的光纤阵列的接合连接。托架10在光纤从护套光缆和带状光缆剥出后在端点之间为放置在那里的被优选地用那里的保护性盖子或外封元件包起并固定在托架体12上的分立光纤环提供基本的光纤容纳空间。
光缆应力释放夹具30被分别固定在托架体12的末端16、18上,例如利用粘合剂或可选择地使用固定件。应力释放夹具30包括许多在其上表面上形成的、并沿着上表面34在第一和第二末端36、38之间延伸的、通常是平行的细长凹槽32,相邻凹槽32之间有细长的凸起40。凹槽32的尺寸可容纳那里的,如果期望的话,光缆26(如图2所示)的护套部分,例如直径为3mm,每一个凹槽经底部切割在靠近上表面34处形成保持边缘42,在其间界定了比光缆窄的、一经嵌入便可固定护套部分26的紧固件。
每一个凸起40优选地具有在上表面34上形成的窄缝44,窄缝44的尺寸近似等于带状光缆的厚度,以便那里容纳带状光缆28。窄缝44的宽度也具有适当的宽度以便在那里容纳从光缆26的护套中剥出的单光纤缓冲部件,如果期望的话。优选地每一个窄缝44的入口包括凹线46,它界定了便于带状光缆嵌入其中的引入端。当把光缆26压入保持边缘42上方的、凹槽32的、稍窄的入口中时,通过使凸起40的上部向外弯曲,窄缝44还有助于护套光缆26嵌入凹槽32。
应力释放夹具30还可具有光缆连接孔50、52,它们与接合托架10的底壁14上的相应的孔(未示出)对准,允许在接合托架上安装传统光缆连接件以提供应力释放夹具所具有的应力释放特性,如果期望的话。光缆连接孔50被显示为贯穿每个凹槽32,并在与利用窄缝44的带状光缆一起使用夹具30时被使用,同时光缆连接孔52被显示为贯穿窄缝44,并在与护套单光缆一起使用夹具30时被使用。
可以看到,如果期望的话,应力释放夹具30可被用在接合托架中,放置在接合耦联器所在位置的两边以固定缓冲光纤或带状光缆的邻近部件。同样地,为了同样的目的,通过利用如粘合剂,双面胶带和可剥离数据记录纸或其它紧固件将底部元件的下表面紧固在表面上,应力释放夹具本身可独立于接合托架使用。应力释放夹具30可用例如弹性材料如合成橡胶材料制造,比如SARLINK聚丙烯基合成橡胶,零件号No.3170或3160或9760由Leominster MA的DSM热塑合成橡胶公司出售,而且可以被挤压成型而不必单个地模制,因为夹具30通常具有连续的横截面,同时光缆连接孔50、52可通过简单的辅助操作制得。
本发明的应力释放元件可被成对使用,如果期望的话每一个邻近接合托架中心附近的接合耦联器的一侧。如果期望的话本发明也可独立于接合托架使用,只要简单地将其按期望的方向固定于选定的表面以容纳并固定光纤元件如护套光缆,分立缓冲光纤或带状光缆。在本发明的宗旨和权利要求的范围内,可以作各种变化和改正。
图7至9显示了本发明接合夹具24的第一实施方案,通常合成橡胶材料制成的厚平面元件具有相对的端点60、62和相对的侧边64、66,其尺寸适合放入侧壁20、22之间的接合夹具10中,并安置在夹具未(图1)之间的中央位置。接合夹具24可利用如粘合剂或接合剂,或固定件,或双面胶带和可剥离数据记录纸简单地安置在接合夹具10的底壁14上。中心定位孔68用来容纳在那里穿过的垂直杆以便堆积若干接合托架。
一列第一凹槽70被限定在夹具24的上表面72上,显示在邻近侧边64、66的两个区域。若干第二凹槽90出现在两个第一凹槽区域和包括孔68的中心区域92之间。每个第二凹槽90通常是圆柱形的,深度和直径等于多-光纤集中熔合接合耦联器94的外径,例如和带状光缆28一同使用。与耦联器94类似的集中熔合接合耦联器与许多非带状光缆形式的分立缓冲光纤一同使用,但是邻近光纤彼此粘合并从集中熔合耦联器末端朝向外是优选的。紧固件98被沿上表面72在入口处界定,以固定那里的集中熔合接合耦联器94于那里的插入件上。该熔合接合耦联器可以通过使用例如用在FITEL光纤熔合接合器S198A上的纤维夹具制成,S198A由Furukawa电子公司制造由加拿大Ottawa JTSFITEL公司销售。
每一个第一凹槽70具有沿上表面72界定在入口处的第一紧固件74,可以看到每个第一凹槽70包括位于凹槽底部78与顶部之间的中央位置上的第二紧固件76,以便形成高端和低端部件80、82,它们的尺寸通常等于与单光纤26一同使用的单-光纤熔合接合耦联器84的直径。因而,每个第一凹槽70能在那里容纳并固定两个单。光纤接合耦联器84,同时节省了空间,增加了接合托架上接合耦联器的密度。
一对窄缝96在中央区域92中出现在中心孔68附近,它们被用来为邻近中央区域92的大凹槽90的内壁提供柔韧性。每一接合夹具24可以用例如合成橡胶材料制造,比如SARLINK聚丙烯基合成橡胶,零件号No.3170或3160或9760由Leominster MA的DSM热塑合成橡胶公司出售,而且可以被挤压成型而不必单个地模制,因为夹具24通常具有连续的横截面,同时中心孔68可通过简单的辅助操作制得。
图10显示了本发明接合夹具100的第二实施方案。可以看出中心接合固定部件102具有上表面104,在其中通常形成用于单-光纤接合耦联器的第一凹槽106,和用于集中熔合接合耦联器的第二凹槽108,并且可以和图7至9所示的接合夹具24的第一和第二凹槽70、90相同。一个薄的,扁平的基体部件110从相对的第一和第二接合固定端点112和114延伸到与第一和第二端点112和114隔开一定距离的应力释放区域116。每一个应力释放区域116包括一列窄缝118、120,它们延伸到上表面104并分别对准第一凹槽106和第二凹槽108。每一个窄缝118的宽度等于单缓冲光纤26的直径,每一个窄缝120的宽度等于带状光缆28的厚度。因而应力释放区域116在离接合固定中心部件102的选定的距离内至少固定每一光纤26和带状光缆28中的一部分,并因此使接合耦联器与压力隔离开,该压力是由于光纤和光缆部件从接合夹具中伸出来而产生的不同侧向倾斜引起的。
如果期望的话本发明的接合夹具可被独立于接合托架使用,只要简单地将其按期望的方向固定于选定的表面以容纳并固定光纤耦联器,如分立的或单光纤光缆或带状光缆。在权利声明的范围和本发明的精神实质内,可以进行变化和改进。
Claims (10)
1.一种用于光纤元件的包括弹性材料的夹具,包括一列用于容纳护套光纤光缆(26)的凹槽(32),凹槽被其间的凸起(40)界定,其特征在于至少一个凸起(40)具有平行于凹槽(32)延伸的窄缝(44),窄缝(44)与光纤带状光缆(28)的厚度互补并具有足够的深度以容纳那里的带状光缆。
2.根据权利声明1的夹具,其中窄缝包括界定了便于带状光缆插入的引入端的凹线(46)入口。
3.根据权利声明1的夹具,其中弹性材料是合成橡胶材料。
4.根据权利声明3的夹具,其中合成橡胶材料是聚丙烯基合成橡胶。
5.根据权利声明1-3的夹具,其中弹性材料元件被安装在光纤接合托架(10)中,并为安装在那里的光缆提供应力释放。
6.一种用于光纤元件的包括弹性材料元件(24)的夹具,包括一列凹槽(70),至少一个凹槽(70)的深度等于单光纤接合耦联器直径的两倍,而且沿凹槽上表面(72)有第一紧固件(74),其特征在于凹槽(70)具有沿凹槽的侧面、位于凹槽的上表面与底部之间的中间位置上的第二紧固件(76),它界定了高端和低端凹槽部件(80,82)。
7.根据权利声明6的接合夹具,其中元件(24)包括至少一个界定在上表面的第二凹槽(90),每一个第二凹槽(90)的深度和宽度等于集中熔合接合耦联器的直径,用于在那里容纳并固定集中熔合接合耦联器。
8.根据权利声明6-7的接合夹具,其中弹性材料是合成橡胶材料。
9.根据权利声明8的接合夹具,其中合成橡胶材料聚丙烯基合成橡胶。
10.根据权利声明7的接合夹具,其中应力释放部件(30)在上表面(34)上具有许多窄缝(32),它们对准第一和第二凹槽用来在那里容纳分别从单光纤接合耦联器和集中熔合接合耦联器伸出的单光纤和带状光缆。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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US08/453,739 | 1995-05-30 | ||
US08/453,157 | 1995-05-30 | ||
US08/453,739 US5530786A (en) | 1995-05-30 | 1995-05-30 | Holding for optical fiber splice couplings |
US08/453,157 US5566268A (en) | 1995-05-30 | 1995-05-30 | Strain relieving holder for optical fiber cable |
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Publication Number | Publication Date |
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CN1185839A true CN1185839A (zh) | 1998-06-24 |
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CN96194245A Pending CN1185839A (zh) | 1995-05-30 | 1996-05-15 | 光纤接合夹具和应力释放 |
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EP (1) | EP0871911A1 (zh) |
JP (1) | JPH11506219A (zh) |
CN (1) | CN1185839A (zh) |
WO (1) | WO1996038752A1 (zh) |
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-
1996
- 1996-05-15 CN CN96194245A patent/CN1185839A/zh active Pending
- 1996-05-15 EP EP96916485A patent/EP0871911A1/en not_active Withdrawn
- 1996-05-15 JP JP8536518A patent/JPH11506219A/ja active Pending
- 1996-05-15 WO PCT/US1996/007081 patent/WO1996038752A1/en not_active Application Discontinuation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100555013C (zh) * | 2004-09-24 | 2009-10-28 | 3M创新有限公司 | 接头保持件装置 |
CN104081238A (zh) * | 2011-11-02 | 2014-10-01 | 纳米精密产品股份有限公司 | 齿形的光缆保持结构 |
CN105074524A (zh) * | 2012-12-07 | 2015-11-18 | 康宁光电通信有限责任公司 | 具有接头保持件和光纤管理特征件的光纤模块 |
CN107209318A (zh) * | 2014-12-14 | 2017-09-26 | 泰勒森特股份有限公司 | 高可靠性机器人交叉连接系统 |
CN107037553A (zh) * | 2017-05-17 | 2017-08-11 | 国网山东省电力公司威海供电公司 | 一种机架式光缆跳纤收容箱 |
CN110045455A (zh) * | 2019-04-28 | 2019-07-23 | 南京聚科光电技术有限公司 | 一种波长精确可控的光纤光栅封装装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
JPH11506219A (ja) | 1999-06-02 |
WO1996038752A1 (en) | 1996-12-05 |
EP0871911A1 (en) | 1998-10-21 |
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