CN112037993A - An optoelectronic hybrid cable - Google Patents
An optoelectronic hybrid cable Download PDFInfo
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- CN112037993A CN112037993A CN202010880884.XA CN202010880884A CN112037993A CN 112037993 A CN112037993 A CN 112037993A CN 202010880884 A CN202010880884 A CN 202010880884A CN 112037993 A CN112037993 A CN 112037993A
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- 230000005693 optoelectronics Effects 0.000 title claims description 18
- 239000013307 optical fiber Substances 0.000 claims abstract description 88
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 16
- 230000002787 reinforcement Effects 0.000 claims description 28
- 238000002955 isolation Methods 0.000 claims description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 7
- 239000003063 flame retardant Substances 0.000 claims description 7
- 229920001971 elastomer Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
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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
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
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Abstract
Description
技术领域technical field
本发明属于线缆领域,尤其涉及一种光电混合缆。The invention belongs to the field of cables, and in particular relates to an optoelectronic hybrid cable.
背景技术Background technique
光电混合缆(Optical power cable,OPC)是将导电线和光纤线有机的结合起来,可同时、同路、同走向传输电能与光信息的一体化传输介质。它实现了电力流、信息流的一体化融合,通过一次架设、一次施工、一次投入,在传输电能的同时传输语音、数据、视频等信息,大大缩短了工期,减少了施工成本,节约了资源。Optical power cable (OPC) is an integrated transmission medium that organically combines conductive wires and optical fibers, and can transmit electrical energy and optical information at the same time, in the same path, and in the same direction. It realizes the integration of power flow and information flow. Through one erection, one construction, and one investment, it transmits voice, data, video and other information while transmitting power, which greatly shortens the construction period, reduces construction costs, and saves resources. .
但是,现有的光电混合缆中,大多采用光纤线和导电线同轴设置的方式,将光纤线设置在轴心处,该种设置方式在导电线受到电击穿时,容易引起光纤受损,导致光信号传输中断,出现断网,其次光纤线设置在轴心处的方式,导致光电混合缆受到外界压力时,容易在光纤线处形成集中受力,导致光纤线产生机械损伤,同样容易引发断线断网等问题。However, in the existing optoelectronic hybrid cables, most of the optical fiber wires and the conductive wires are coaxially arranged, and the optical fiber wires are arranged at the axial center. When the conductive wires are subjected to electrical breakdown, the optical fiber is easily damaged. , resulting in interruption of optical signal transmission and network disconnection. Secondly, the way the optical fiber cable is arranged at the axis makes it easy to form a concentrated force on the optical fiber cable when the optical fiber cable is subjected to external pressure, resulting in mechanical damage to the optical fiber cable. It is also easy to Causes problems such as disconnection and disconnection.
发明内容SUMMARY OF THE INVENTION
为解决现有的光电混合缆通常难以规避导电线部分电击穿或过热引发光纤线受损,和/或光纤线容易受到机械损伤引发断网等问题,本发明提供了一种光电混合缆。In order to solve the problems that the existing optoelectronic hybrid cable is usually difficult to avoid damage to the optical fiber caused by partial electrical breakdown or overheating of the conductive wire, and/or the optical fiber cable is easily damaged by mechanical damage and causes network disconnection, the present invention provides an optoelectronic hybrid cable.
本发明的目的在于:The purpose of this invention is to:
1)导电线组和光纤线组采用非对称结构设置,避免导电线组电击穿引起光纤线组受损的问题发生;1) The conductive wire group and the optical fiber wire group are set in an asymmetric structure to avoid the problem of damage to the optical fiber wire group caused by the electrical breakdown of the conductive wire group;
2)利用导电线组更优的机械性能对光纤线组进行保护;2) Use the better mechanical properties of the conductive wire set to protect the optical fiber set;
3)通过设置非对称结构的加强件进一步提高对混合缆中光纤线组的保护效果。3) The protection effect of the optical fiber group in the hybrid cable is further improved by setting the asymmetric structure of the reinforcement.
为实现上述目的,本发明采用以下技术方案。In order to achieve the above objects, the present invention adopts the following technical solutions.
一种光电混合缆,包括:An optoelectronic hybrid cable, comprising:
护套层以及在护套层内对称设置的导电线组和光纤线组;The sheath layer and the conductive wire group and the optical fiber wire group arranged symmetrically in the sheath layer;
所述导电线组截面为圆形,光纤线组截面为椭圆形,且光纤线组截面长轴的延长线穿过导电线组截面圆心;The cross-section of the conductive wire group is circular, the cross-section of the optical fiber wire group is oval, and the extension line of the long axis of the optical fiber wire group cross-section passes through the center of the cross-section of the conductive wire group;
所述导电线组的半径大于光纤线组的半短轴;The radius of the conductive wire group is greater than the semi-minor axis of the optical fiber wire group;
所述护套层内还设有异形加强件;A special-shaped reinforcement is also arranged in the sheath layer;
所述异形加强件由头部和尾部两部分组成;The special-shaped reinforcement is composed of two parts: a head part and a tail part;
所述头部截面为圆弧形,包覆在导电线组外,且朝向光纤线组端开口;The cross section of the head is arc-shaped, wrapped outside the conductive wire group, and opened toward the end of the optical fiber wire group;
所述尾部由两段截面为椭圆弧的结构构成,分别连接在头部开口的两端、以光纤线组截面长轴为对称线对称设置在光纤线组的上端和下端。The tail is composed of two sections of elliptical arc structures, which are respectively connected to both ends of the opening of the head, and are symmetrically arranged on the upper and lower ends of the optical fiber group with the long axis of the cross-section of the optical fiber group as the symmetry line.
作为优选,As a preference,
所述导电线组由第一束管包覆若干导电线构成,所述第一束管截面为圆形;The conductive wire group is composed of a first bundle of tubes covered with a plurality of conductive wires, and the cross-section of the first bundle of tubes is circular;
所述光纤线组由第二束管包覆若干光纤线构成,所述第二束管截面为椭圆形。The optical fiber line group is composed of a second bundle tube covering a plurality of optical fiber wires, and the cross section of the second bundle tube is elliptical.
作为优选,As a preference,
所述导电线组和光纤线组互不接触且不与护套层的外边缘相切。The set of conductive wires and the set of optical fibers are not in contact with each other and are not tangent to the outer edge of the jacket layer.
作为优选,As a preference,
所述尾部的椭圆弧背向光纤线组朝外拱起。The elliptical arc of the tail portion is arched outwards away from the optical fiber line group.
作为优选,As a preference,
所述护套层外设置有隔离层,隔离层由防水橡胶制备。An isolation layer is arranged outside the sheath layer, and the isolation layer is made of waterproof rubber.
作为优选,As a preference,
所述隔离层外设置有阻燃层,阻燃层由硅橡胶制备。A flame retardant layer is arranged outside the isolation layer, and the flame retardant layer is made of silicone rubber.
作为优选,As a preference,
所述护套层中还设有以光纤线组长轴为对称线对称设置的拱形加强件。The jacket layer is also provided with an arched reinforcing member symmetrically arranged with the long axis of the optical fiber group as the line of symmetry.
作为优选,As a preference,
所述拱形加强件中点的连线经过光电混合缆的圆心,且与光纤线组长轴的延长线垂直;The connecting line of the midpoint of the arched reinforcement passes through the center of the optoelectronic hybrid cable, and is perpendicular to the extension line of the long axis of the optical fiber group;
所述拱形加强件向外拱起、外表面与隔离层内表面相切。The arched reinforcement is arched outward, and the outer surface is tangent to the inner surface of the isolation layer.
本发明的有益效果是:The beneficial effects of the present invention are:
1)能够有效避免电击穿引起光纤线损坏;1) It can effectively avoid damage to the optical fiber caused by electrical breakdown;
2)通过结构的改进,形成以导电线组作为主要承载外界机械作用力的部分,对光纤线组进行机械性保护;2) Through the improvement of the structure, the conductive wire group is formed as the part that mainly bears the external mechanical force, and the optical fiber wire group is mechanically protected;
3)通过非对称加强件的设置进一步提升对光纤线组的保护效果。3) The protection effect of the optical fiber line group is further improved by the arrangement of the asymmetric reinforcement.
附图说明:Description of drawings:
图1为本发明的结构示意图;Fig. 1 is the structural representation of the present invention;
图2为本发明的一种受力示意图;Fig. 2 is a kind of force schematic diagram of the present invention;
图3为本发明的另一种受力示意图;Fig. 3 is another kind of force schematic diagram of the present invention;
图中:100护套层,200导电线组,201导电线,202第一束管,300光纤线组,301光纤线,302第二束管,400异形加强件,401头部,402尾部,403节点,500隔离层,600阻燃层,700拱形加强件。In the picture: 100 jacket layer, 200 conductive wire set, 201 conductive wire, 202 first bundle tube, 300 optical fiber wire set, 301 optical fiber wire, 302 second bundle tube, 400 special-shaped reinforcement, 401 head, 402 tail, 403 nodes, 500 isolation layers, 600 flame retardant layers, 700 arch reinforcements.
具体实施方式:Detailed ways:
以下结合具体实施例和说明书附图对本发明作出进一步清楚详细的描述说明。本领域普通技术人员在基于这些说明的情况下将能够实现本发明。此外,下述说明中涉及到的本发明的实施例通常仅是本发明一部分的实施例,而不是全部的实施例。因此,基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例,都应当属于本发明保护的范围。The present invention will be further described and described in detail below with reference to specific embodiments and accompanying drawings. Those of ordinary skill in the art will be able to implement the present invention based on these descriptions. In addition, the embodiments of the present invention referred to in the following description are generally only some embodiments of the present invention, not all of the embodiments. Therefore, based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
在本发明的描述中,需要理解的是,术语“厚度”、“上”、“下”、“水平”、“顶”、“底”、“内”、“外”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系,仅是为了便于描述本发明和简化描述,而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作,因此不能理解为对本发明的限制。在本发明的描述中,“多个”的含义是至少两个,例如两个,三个等,除非另有明确具体的限定,“若干”的含义是表示一个或者多个。In the description of the present invention, it should be understood that the terms "thickness", "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined, the meaning of "several" means one or more.
在本发明中,除非另有明确的规定和限定,术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解,例如,可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接或彼此可通讯;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系,除非另有明确的限定。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本发明中的具体含义。In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two components or the interaction relationship between the two components, unless otherwise expressly qualified. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
如无特殊说明,本发明实施例所用原料均为市售或本领域技术人员可获得的原料;如无特殊说明,本发明实施例所用方法均为本领域技术人员所掌握的方法。Unless otherwise specified, the raw materials used in the embodiments of the present invention are commercially available or available to those skilled in the art; unless otherwise specified, the methods used in the embodiments of the present invention are all methods mastered by those skilled in the art.
实施例Example
一种如图1所示的非对称结构光电混合缆,其主要包括:An asymmetric structure optoelectronic hybrid cable as shown in Figure 1, which mainly includes:
护套层100、导电线组200和光纤线组300,导电线组200和光纤线组300对称设置在护套层100内,且导电线组200和光纤线组300均完全被护套层100包覆、边缘部分不与护套层100的外边缘相切或抵接,两者几何中心的连线经过护套层100的几何中心且连线的中点与护套层100的几何中心重合,如图1所示,两者水平设置、左右对称;The
所述导电线组200由第一束管202包覆若干导电线201构成,光纤线组300由第二束管302包覆若干光纤线301构成,光纤线301由无纺布包带包覆单模光纤或多模光纤或光纤束构成;The
所述第一束管202截面为圆形、第二束管302截面为椭圆形,第二束管302截面长轴的延长线穿过第一束管202截面的圆心,光纤线301截面为圆形,且光纤线301与第二束管302短轴方向两端内壁相切,束管可以采用常用的PBT材料,但不限于PBT;The cross section of the
所述第一束管202圆形截面的半径为R,第二束管302截面椭圆形半长轴为a、半短轴为b,需要同时满足|R-a|≤0.05×R、|R-a|≤0.05×a和R≥2b,在本实施例方案中,取R=a且R=2b;The radius of the circular section of the
在该条件下,混合缆在受到纵向压力时,能够形成有利于光纤线组300的受力分布,即导电线组200作为混合缆受力时的主要承载部分,避免光纤线组300受到较大的压力导致损坏,利用导电线组200相较于光纤线组300整体抗压性更优、受力后性能影响较小等优势,对光纤线组300进行有效的保护;Under this condition, when the hybrid cable is subjected to longitudinal pressure, it can form a force distribution that is beneficial to the optical fiber assembly 300, that is, the
另一方面,在横向受力,即力的方向沿第二束管302截面长轴方向作用在混合缆上时,由于第二束管302的椭圆形结构,使得光纤线组300具有一定的变形余量,在受到该方向的压力作用时,光纤线组300中第二束管302沿其截面长轴方向被压缩,a逐渐缩小,在a缩小到等于b之前,光纤线组300不会直接受力,对光纤线301实现了良好的保护。On the other hand, when a lateral force is applied to the hybrid cable, that is, the direction of the force acts on the hybrid cable along the long axis of the second bundle tube 302, due to the elliptical structure of the second bundle tube 302, the optical fiber set 300 has a certain deformation. margin, when subjected to pressure in this direction, the second bundle tube 302 in the optical fiber assembly 300 is compressed along the long axis of its cross-section, and a is gradually reduced. Before a is reduced to be equal to b, the optical fiber assembly 300 will not directly Under the force, the
进一步的,所述护套层100内还设有异形加强件400,其由硬质硅胶材料制备;Further, the
所述异形加强件400由头部401和尾部402两部分构成,异形加强件400如图1所示,其头部401截面为圆弧形,同轴且互不接触的设置在导电线组200外,并且其朝向光纤线组300方向设有开口,开口角度为60~90°,本实施例中开口角度为90°,尾部402为两段截面为椭圆弧的结构,其分别连接头部401开口处的两端,以光纤线组300截面长轴为对称轴对称设置,如图1所示,尾端对称设置在光纤线组300的上下端,且尾部402的椭圆弧背向光纤线组300朝外拱起。The special-shaped reinforcing
异形加强件400设置的目的在于进一步提高对光纤线组300受纵向或横向压力时的保护效果,并且分散部分导电线组200的受力,使得整体混合缆具有更优的抗压性能,导电线组200和光纤线组300均不易受损;The purpose of the special-shaped
未设置异形加强件400的情况下,光缆受到纵向压力时,虽然大部分受力集中在导电线组200上,但仍会有部分的力作用在光纤线组300上,受到横向压力时,光纤线组300受到较大的横向压力容易受到挤压,设置异形加强件400后,受到纵向压力时,原先作用于光纤线组300的力会被异形加强件400的尾部402吸收或削弱,减小光纤线组300的受力,对光纤线301进行保护,在混合缆受到横向压力时,虽然混合缆左右两侧仍会形成形变差异,但在异形加强件400尾部402的作用下,第二束管302不再是简单地变形,而是形成向导电线组200移动的趋势,且尾部402受力会传导至异形加强件400的头部401,即变相将应作用于光纤线组300的力部分引导至导电线组200上,利用导电线组200更耐压、更不易受损的优势,对光纤线组300形成良好的保护;In the case where the special-shaped reinforcing
受到纵向压力时具体如图2所示,纵向压力F1作用在混合缆上,护套层100首先形成沿a向压缩变形、沿b向展开的趋势,并将力传导至异形加强件400上,异形加强件400的头部401具有沿c1方向变形的趋势、尾部402具有沿c2方向变形的趋势,c1向和c2向平行,即头部401和尾部402在初始状态下变形趋势趋于一致,但由于两者均为弧形结构,变形过程中头部401和尾部402的连接处受到头部401和尾部402的同时作用,而由于头部401的曲率半径更小、尾部402的曲率半径更大,在图2中头部401和尾部402连接处节点403头部401受到的横向作用力更大,因此头部401会有闭合的趋势,异形加强件400的尾部402设定左侧为头端、右侧为尾端,头部401的闭合会导致尾部402的头端也向内闭合,尾端形成张口的的趋势,减少了尾部402沿c2方向变形的变形量,因此以异形加强件400为分界点,将混合缆内异形加强件400外的区域标记为A,异形加强件400包覆的区域标记为B,由于存在异形加强件400的阻隔和变形缓冲,削减了对区域B的作用力,使得区域A沿纵向的变形量要大于沿区域B的变形量,两者变形比例由1:1提升至x:1(x>1),形成变形差,使得区域B内导电线组200和光纤线组300实际受到护套层100变形挤压的力更小,提高了对导电线组200和光纤线组300的保护效果;When subjected to longitudinal pressure, specifically as shown in FIG. 2 , the longitudinal pressure F1 acts on the hybrid cable, and the
另一方面,光电混合缆受到横向压力F2的作用时如图3所示,横向压力F2作用在混合缆上,护套层100首先沿d向发生横向的压缩变形,异形加强件400的尾部402的尾端受力沿e向变形、头端沿f向变形,e向和f向平行,但头端和尾端的实际变形量不同,尾端的变形幅度更大,同时头端存在变形极限,异形加强件400尾部402的头端与异形加强件400头部401的连接处节点403,节点403变形会逐渐靠近导电线组200直至无法再被压缩变形为止,此时导电线组200会形成替代性的受力,即部分的力通过异形加强件400的尾部402作用在导电线组200上,使其作为主要的受力部分,如图3所示,光纤线组300处于被异形加强件400尾部402上下对称包覆的区域C中,区域C形成被横向压缩和向左偏移的趋势,相较于不设置异形加强件400时光纤线组300中第二束管302直接受挤压的方式,区域C通过向导电线组200偏移的方式减小了压缩程度,实现了减少光纤线组300中第二束管302沿长轴方向压缩量的目的,提高了对光纤线组300的保护效果,并且将部分的力通过异形加强件400作用在导电线组200上,进一步减小了区域C的实际受力,较大程度地优化了光纤线组300的受力情况,对光纤线组300实现了良好的保护。On the other hand, when the optoelectronic hybrid cable is subjected to the lateral pressure F2, as shown in FIG. 3, the lateral pressure F2 acts on the hybrid cable, and the
进一步的,further,
所述护套层100外设置有防水防潮的隔离层500,其由防水橡胶制备,起到防水防潮作用的同时,具有一定的柔弹性和绝缘性;The
进一步的,further,
隔离层500外设置有阻燃层600,阻燃层600由耐火且绝缘的硅橡胶制备,同样也具有柔弹性;A
所述护套层100中还设有上下对称的拱形加强件700,拱形加强件700为硬质硅胶材质,其截面如图1所示为圆弧拱形,两拱形加强件700中点的连线经过光电混合缆的圆心,且与光纤线组300长轴的延长线垂直;The
所述拱形加强件700向外拱起、外表面与隔离层500内表面相切。The
拱形加强件700的设置,能够进一步减小混合缆在纵向受力时光纤线组300的受力,通过拱形加强件700受力后两侧向外抬起的趋势,使得第二束管302沿截面短轴方向更不易被压缩、对光纤线301形成挤压,同时对导电线组200起到分散受力和保护的作用。The arrangement of the arched reinforcing
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