CN112037993A - An optoelectronic hybrid cable - Google Patents

An optoelectronic hybrid cable Download PDF

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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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optical fiber
group
wire group
hybrid cable
conductive wire
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CN112037993B (en
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周永明
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Hangzhou Futong Communication Technology Co Ltd
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Hangzhou Futong Communication Technology Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables
    • H01B9/005Power cables including optical transmission elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4401Optical cables
    • G02B6/4429Means specially adapted for strengthening or protecting the cables
    • G02B6/443Protective covering
    • G02B6/4432Protective covering with fibre reinforcements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Communication Cables (AREA)

Abstract

The invention belongs to the field of cables, and particularly relates to a photoelectric hybrid cable. It includes: the sheath layer, and the conducting wire group and the optical fiber group which are symmetrically arranged in the sheath layer; the cross section of the conductive wire group is circular, the cross section of the optical fiber group is oval, and the extension line of the long axis of the optical fiber group passes through the circle center of the conductive wire group; a special-shaped reinforcing part is also arranged in the sheath layer; the special-shaped reinforcing piece consists of a head part and a tail part; the head part is covered outside the conductive wire group and faces the end opening of the optical fiber group; the tail part is formed by a structure of two sections of elliptical arcs, is connected to two ends of the opening of the head part and is symmetrically arranged at the upper end and the lower end of the optical fiber line group. The invention forms a structure which takes the conductive wire group and the special-shaped reinforcing piece as main bearing acting force through the improvement of the structure, and protects the optical fiber group.

Description

一种光电混合缆An optoelectronic hybrid cable

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 jacket layer 100, the conductive wire group 200 and the optical fiber wire group 300, the conductive wire group 200 and the optical fiber wire group 300 are symmetrically arranged in the jacket layer 100, and both the conductive wire group 200 and the optical fiber wire group 300 are completely covered by the jacket layer 100 The cladding and edge parts are not tangent or abutting with the outer edge of the sheath layer 100 , the line connecting the geometric centers of the two passes through the geometric center of the sheath layer 100 and the midpoint of the line coincides with the geometric center of the sheath layer 100 , as shown in Figure 1, the two are set horizontally and symmetrically;

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 conductive wire group 200 is composed of a first bundle tube 202 covered with a plurality of conductive wires 201. The optical fiber wire group 300 is composed of a second bundle tube 302 coated with a plurality of optical fiber wires 301. The optical fiber wires 301 are covered by a non-woven fabric. Mode fiber or multimode fiber or fiber bundle;

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 first bundle tube 202 is circular, the cross section of the second bundle tube 302 is oval, the extension of the long axis of the cross section of the second bundle tube 302 passes through the center of the cross section of the first bundle tube 202, and the cross section of the optical fiber 301 is a circle shape, and the optical fiber 301 is tangent to the inner walls of both ends in the short-axis direction of the second bundle tube 302, and the bundle tube can be made of commonly used PBT materials, but is not limited to PBT;

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 first bundle tube 202 is R, the semi-major axis of the ellipse section of the second bundle tube 302 is a, and the semi-minor axis is b, which needs to satisfy |R-a|≤0.05×R, |R-a|≤ 0.05×a and R≥2b, in this embodiment, take R=a and R=2b;

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 conductive wire assembly 200 serves as the main bearing part of the hybrid cable when the hybrid cable is subjected to stress, so as to prevent the optical fiber assembly 300 from being subjected to a large amount of stress. Compared with the optical fiber line group 300, the overall compression resistance of the conductive line group 200 is better than that of the optical fiber line group 300, and the performance is less affected, and the optical fiber line group 300 is effectively protected;

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 optical fiber cable 301 is well protected.

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 jacket layer 100 is also provided with a special-shaped reinforcing member 400, which is made of hard silica gel material;

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 member 400 is composed of two parts, a head portion 401 and a tail portion 402. The special-shaped reinforcing member 400 is shown in FIG. 1. The cross-section of the head portion 401 is arc-shaped, and is coaxially arranged on the conductive wire group 200 without touching each other. In addition, it is provided with an opening toward the optical fiber set 300, and the opening angle is 60-90°. In this embodiment, the opening angle is 90°. The tail 402 is a structure with two sections of elliptical arcs, which are respectively connected to the head 401. The two ends of the opening are symmetrically arranged with the long axis of the section of the optical fiber group 300 as the symmetry axis. As shown in FIG. 1 , the tail ends are symmetrically arranged on the upper and lower ends of the optical fiber group 300, and the elliptical arc of the tail 402 faces away from the optical fiber group. 300 arched outwards.

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 reinforcement 400 is to further improve the protection effect of the optical fiber group 300 under longitudinal or lateral pressure, and to disperse the force of part of the conductive wire group 200, so that the overall hybrid cable has better compression resistance, and the conductive wire Both group 200 and fiber optic line group 300 are not easily damaged;

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 member 400 is not provided, when the optical cable is subjected to longitudinal pressure, although most of the force is concentrated on the conductive wire group 200, a part of the force still acts on the optical fiber wire group 300. The wire group 300 is easily squeezed by a large lateral pressure. After the special-shaped reinforcing member 400 is installed, when it is subjected to longitudinal pressure, the force originally acting on the optical fiber wire group 300 will be absorbed or weakened by the tail portion 402 of the special-shaped reinforcing member 400, reducing the The force of the optical fiber set 300 protects the optical fiber 301. When the hybrid cable is subjected to lateral pressure, although the left and right sides of the hybrid cable will still form a deformation difference, under the action of the tail 402 of the special-shaped reinforcement 400, the second bundle of The tube 302 is no longer simply deformed, but forms a tendency to move the guide wire set 200 , and the force on the tail 402 will be transmitted to the head 401 of the special-shaped reinforcement 400 , that is, the force part that will act on the optical fiber set 300 in disguise Guided to the conductive wire group 200, and the advantages of the conductive wire group 200 being more resistant to pressure and less damage are used to form a good protection for the optical fiber wire group 300;

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 sheath layer 100 first forms a tendency to compress and deform along the a-direction and expand along the b-direction, and transmit the force to the special-shaped reinforcement 400 , The head 401 of the special-shaped reinforcement 400 has a tendency to deform along the c1 direction, and the tail 402 has a tendency to deform along the c2 direction, and the c1 direction and the c2 direction are parallel, that is, the deformation trend of the head 401 and the tail 402 tends to be consistent in the initial state, However, since both are arc-shaped structures, the connection between the head 401 and the tail 402 is simultaneously affected by the head 401 and the tail 402 during the deformation process. In FIG. 2, the node 403 at the connection between the head 401 and the tail 402 receives a larger lateral force, so the head 401 will tend to close. The tail 402 of the special-shaped reinforcement 400 is set to the left side as the head The end and the right side are the tail ends. The closing of the head 401 will cause the head end of the tail 402 to also close inward, and the tail end will form a tendency to open, which reduces the deformation of the tail 402 in the direction of c2. Therefore, the special-shaped reinforcement is used. 400 is the demarcation point, the area outside the special-shaped reinforcement 400 in the hybrid cable is marked as A, and the area covered by the special-shaped reinforcement 400 is marked as B. Due to the barrier and deformation buffer of the special-shaped reinforcement 400, the area B is reduced. force, so that the deformation of area A along the longitudinal direction is greater than that of area B, and the deformation ratio of the two is increased from 1:1 to x:1 (x>1), resulting in a deformation difference, which makes the conductive wire group in area B 200 and the optical fiber line group 300 are actually less deformed and squeezed by the sheath layer 100, which improves the protection effect of the conductive line group 200 and the optical fiber line group 300;

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 sheath layer 100 first undergoes lateral compression deformation along the d direction, and the tail 402 of the special-shaped reinforcement 400 The tail end is deformed along the e direction, and the head end is deformed along the f direction. The e direction and the f direction are parallel, but the actual deformation amount of the head end and the tail end is different, and the deformation range of the tail end is larger. At the same time, the head end has a deformation limit. The node 403 at the connection between the head end 402 of the rear part 402 of the reinforcement member 400 and the head part 401 of the special-shaped reinforcement member 400, the deformation of the node 403 will gradually approach the conductive wire group 200 until it can no longer be compressed and deformed. At this time, the conductive wire group 200 will form an alternative The force, that is, part of the force acts on the conductive wire group 200 through the tail portion 402 of the special-shaped reinforcement member 400, making it the main force-bearing part, as shown in FIG. In the area C covered by the 402 up and down symmetrically, the area C tends to be laterally compressed and shifted to the left, compared to the way in which the second bundle tube 302 in the optical fiber group 300 is directly squeezed when the special-shaped reinforcing member 400 is not provided , the area C reduces the degree of compression by offsetting the guide wire group 200, achieving the purpose of reducing the amount of compression of the second bundle tube 302 in the optical fiber group 300 along the long axis direction, and improving the protection effect of the optical fiber group 300 , and part of the force acts on the conductive wire group 200 through the special-shaped reinforcement 400, further reducing the actual force in the area C, and optimizing the force of the optical fiber group 300 to a great extent. Good protection is achieved.

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 sheath layer 100 is provided with a waterproof and moisture-proof isolation layer 500, which is made of waterproof rubber, and has a certain flexibility and insulation while playing the role of waterproof and moisture-proof;

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 flame retardant layer 600 is provided outside the isolation layer 500, and the flame retardant layer 600 is made of fire-resistant and insulating silicone rubber, and also has flexibility;

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 jacket layer 100 is also provided with an arched reinforcing member 700 that is symmetrical up and down. The arched reinforcing member 700 is made of hard silicone material, and its cross-section is arc-shaped as shown in FIG. 1 . The connection line of the points 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 300;

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 arched reinforcement 700 is arched outward, and the outer surface is tangent to the inner surface of the isolation layer 500 .

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 member 700 can further reduce the stress on the optical fiber group 300 when the hybrid cable is subjected to longitudinal stress. Through the tendency of the two sides of the arched reinforcing member 700 to be lifted outward after being stressed, the second bundle of tubes The 302 is more difficult to be compressed along the short axis direction of the cross section, which squeezes the optical fiber 301, and at the same time plays the role of dispersing force and protecting the conductive wire group 200.

Claims (8)

1.一种光电混合缆,其特征在于,包括:1. A photoelectric hybrid cable, characterized in that, 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. 2.根据权利要求1所述的一种光电混合缆,其特征在于,2. A kind of optoelectronic hybrid cable according to claim 1, is characterized in that, 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. 3.根据权利要求1所述的一种光电混合缆,其特征在于,3. A kind of optoelectronic hybrid cable according to claim 1, is characterized in that, 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. 4.根据权利要求1所述的一种光电混合缆,其特征在于,4. A kind of optoelectronic hybrid cable according to claim 1, is characterized in that, 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. 5.根据权利要求1所述的一种光电混合缆,其特征在于,5. A kind of optoelectronic hybrid cable according to claim 1, is characterized in that, 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. 6.根据权利要求5所述的一种光电混合缆,其特征在于,6. A kind of optoelectronic hybrid cable according to claim 5, is characterized in that, 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. 7.根据权利要求5或6所述的一种光电混合缆,其特征在于,7. A kind of optoelectronic hybrid cable according to claim 5 or 6, is characterized in that, 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. 8.根据权利要求7所述的一种光电混合缆,其特征在于,8. A kind of optoelectronic hybrid cable according to claim 7, is characterized in that, 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.
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