CN217113904U

CN217113904U - Fire-resistant photoelectric composite cable for indoor wiring system

Info

Publication number: CN217113904U
Application number: CN202220570083.8U
Authority: CN
Inventors: 汤代兵; 蒋林利
Original assignee: Hubei Yuhong Photoelectric Industry Co ltd
Current assignee: Hubei Yuhong Photoelectric Industry Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-08-02
Anticipated expiration: 2032-03-16

Abstract

The utility model relates to the technical field of composite cables, in particular to a fire-resistant photoelectric composite cable for an indoor wiring system, which comprises an optical cable core and power line cores distributed on two sides of the optical cable core in parallel, wherein a reinforcing rib is arranged between the optical cable core and the power line cores, and each power line core comprises an inner conductor and an insulating layer extruded on the surface of the inner conductor; the optical cable fiber core comprises a fiber core and a fire-resistant insulating layer coated on the surface of the fiber core; the surfaces of the optical cable fiber core, the power supply wire core and the reinforcing rib are extruded with an outer protective layer; and power supply polarities are extruded at the two end points of the outer protective layer. The utility model discloses possess flexure resistance flexibility, interference immunity, security and refractiveness, from mechanical physical properties, the security performance carries out configuration optimization design above the fire resistance, has integrateed the subassembly of multiple functions such as power transmission, video monitoring, thing networking device control and communication in an organic whole, can effectively reduce engineering construction cost, reduces electromagnetic interference nature.

Description

Fire-resistant photoelectric composite cable for indoor wiring system

Technical Field

The utility model relates to a compound photoelectric cable technical field, in particular to fire-resistant type photoelectric composite cable that indoor wiring system used.

Background

With the rapid development of the internet and ultra-high-definition videos, new service applications such as 8K videos, online education, network games, cloud VR, online office, intelligent IoT gradually become home-wide high-quality services, and the services have the characteristics of high bandwidth, low time delay and the like, for example, the online education requires that the network symmetric bandwidth is 30 Mbps-100 Mbps, and the cloud VR service requires a high bandwidth of more than 130 Mbps. For large-dwelling and villa coverage, video and game services are frequently blocked due to the problems of insufficient Wi-Fi bandwidth, poor coverage and the like, and the user experience is poor, so that the method becomes a main pain point of the large-dwelling. Therefore, how to realize gigabit-capable cellular coverage is a significant challenge for operators to realize gigabit Wi-Fi coverage promised by the whole house. Starting in the next half of 2019, a terminal manufacturer and a domestic communication integrator cooperate to start an FTTR all-optical home network innovation solution, and compared with the traditional FTTH optical fiber home entry, the FTTR all-optical home network innovation solution mainly comprises an FTTR main gateway, a home ODN network and edge gateways deployed in various rooms, the fact that optical fibers reach the rooms is creatively achieved, the main gateway and the edge gateways start dual-frequency Wi-Fi signals, the whole-room gigabit Wi-Fi coverage capability is achieved, and the promised bandwidth experience of each room is really achieved.

The indoor wiring is that the information of various control equipment, communication equipment, management system, fire-fighting system, water supply and drainage system and other devices in the building is connected into the central control room by the same cable, the residents of the building can add various devices at the office and connect to the wiring device preset at the place, the devices can be placed or changed at will, once the position is determined, the indoor manager can enter the wiring system of the building by simply jumping wires between the corresponding points and the corresponding devices in the central control room to implement the control and management functions, because the floor height of the intelligent building is high, the quantity of the related intelligent devices is large, the system is complex, the remote high-definition video monitoring or intelligent device control is required to be carried out on the area in the building, the related intelligent devices have certain electromagnetic interference on the signal transmission system when working, in order to avoid electromagnetic interference and ensure normal transmission of signals, when an intelligent building is designed, a photoelectric composite cable is used as a signal transmission cable connected to a data center, and meanwhile, the photoelectric composite cable is possibly connected to high-definition monitoring equipment or control equipment which needs to be moved in a reciprocating manner among high-rise buildings, so that higher requirements are put forward on installation convenience, fire resistance and safety of the photoelectric composite cable.

Disclosure of Invention

The utility model aims at overcoming prior art's is not enough, the utility model provides a possess anti flexible, the photoelectric composite cable that is arranged in indoor full gloss net wiring system of security and refractiveness, this cable is from mechanical physical property, the security performance carries out the configuration optimization design above the fire resistance, along with the rapid development of internet of things in the intelligent big summer system, the intelligent technology such as long-range intelligent video control of mansion internal management, smart machine uses will be realized in internet of things's popularization, with the most advanced internet of things of present generation, the electrical control technique fuses.

In order to achieve the purpose, the utility model provides a fire-resistant type photoelectric composite cable for indoor wiring system, including optical cable fibre core, the power sinle silk of parallel distribution in optical cable fibre core both sides, be equipped with the strengthening rib between optical cable fibre core and the power sinle silk, the power sinle silk includes inner conductor and extrudes the insulating layer of package in inner conductor surface; the optical cable fiber core comprises a fiber core and a fire-resistant insulating layer coated on the surface of the fiber core; the surfaces of the optical cable core, the power supply core and the reinforcing rib are extruded with an outer protective layer; and power supply polarities are extruded at the two end points of the outer protective layer.

Furthermore, the outer protective layer is made of ceramic polyolefin materials, and is simultaneously extruded and wrapped on the surfaces of the fiber core of the optical cable, the power supply wire core and the reinforcing rib through a special die by a synchronous production method to form a whole. The whole cable conductor is butterfly-shaped, has stronger tensile bending resistance, and protects the whole cable.

Furthermore, in order to distinguish the positive electrode and the negative electrode of the power cord core, the polarity of the power supply is simultaneously extruded and wrapped with the outer protective layer by a three-layer co-extrusion method, a red ceramic polyolefin material is adopted to mark the positive electrode of the power cord, a blue ceramic polyolefin material is adopted to mark the negative electrode of the power cord, and the coverage area of the red color and the blue color is not less than 30% of the surface of the power cord core.

Furthermore, in order to ensure that the signal is not interfered by external electromagnetic interference and the transmission distance is long when the signal is transmitted, the fiber core is a two-core single-mode fiber core, and the transmission attenuation is small.

Furthermore, in order to enhance and reduce the damage effect of the dispersed bending force on the internal structure of the cable, the reinforcing body uses two stranded galvanized steel wire stranded groups which are symmetrically arranged between the fiber core of the optical cable and the power line in parallel.

Furthermore, the inner conductor is formed by twisting a plurality of strands of anaerobic copper wires, and has good low resistance.

Further, the insulating layer 22 is made of high-flame-retardant ceramic polyolefin material and is extruded on the surface of the inner conductor.

Furthermore, the fireproof insulating layer is extruded on the surface of the fiber core by adopting a ceramic polyolefin material.

The utility model has the advantages that: a photoelectric composite cable with fire resistance, safety and bending resistance for indoor all-optical network wiring system is optimally designed on the basis of structure and material use and production method, along with the rapid development of the Internet of things technology, the popularization of the intelligent building control technology realizes the intelligent technologies such as user remote intelligent video control and fire control, and the most advanced Internet of things technology and electrical control technology are fused, the composite cable has good acid and alkali oil corrosion resistance and high and low temperature resistance, has no smoke toxicity and droppings during combustion, has the characteristics of no flame delay, no smoke toxicity, no generation of secondary hazards such as droppings and the like after combustion, has no corrosion to buildings, has the characteristics of full-dry type, small outer diameter, light weight, simple structure, convenient branch use and the like, is suitable for being applied to the typical application scene of FTTR, and an active optical splitter in a network needs to support local power taking, it is also necessary to support the access from the main gateway through the optical/electrical composite cable of the main cable.

Drawings

For the purpose of illustration, the invention is described in detail with reference to the following preferred embodiments and the accompanying drawings.

Fig. 1 is a schematic structural diagram of a fire-resistant photoelectric composite cable for an indoor wiring system.

In the figure: the cable comprises an optical cable core 1, a power supply core 2, a reinforcing rib 3, an inner conductor 21, an insulating layer 22, a core 11, a fireproof insulating layer 12, an outer protective layer 4 and a power supply polarity 5.

Detailed Description

The fire-resistant photoelectric composite cable for the indoor wiring system of the present invention is further described with reference to the accompanying drawings:

a fire-resistant photoelectric composite cable for an indoor wiring system comprises an optical cable core 1 and power supply core 2 which are distributed on two sides of the optical cable core 1 in parallel, wherein reinforcing ribs 3 are arranged between the optical cable core 1 and the power supply core 2, the effect of dispersed bending force on the damage of the internal structure of the cable is reduced through the reinforcing ribs, and the reinforcing ribs 3 are symmetrically arranged between the optical cable core 1 and the power supply core 2 in parallel by using two stranded galvanized steel wire stranded groups; the power wire core 2 comprises an inner conductor 21 and an insulating layer 22 which is extruded on the surface of the inner conductor 21; the optical cable fiber core 1 comprises a fiber core 11 and a fire-resistant insulating layer 12 coated on the surface of the fiber core 11, the fire-resistant insulating layer is extruded and coated on the surface of the fiber core by adopting a ceramic polyolefin material, the fiber core 11 is a two-core single-mode fiber core, and the transmission attenuation and anti-interference performance is high; the surfaces of the optical cable core 1, the power supply core 2 and the reinforcing rib 3 are extruded with an outer protective layer 4; and power supply polarities 5 are extruded at two end points of the outer protective layer 4.

In this embodiment, the outer protective layer 4 is made of ceramic polyolefin material, and is simultaneously extruded and wrapped on the surfaces of the optical cable core 1, the power supply core 2 and the reinforcing ribs 3 through a special die by a synchronous production method to form a whole, and the extruded outer protective layer makes the whole cable be butterfly-shaped, has strong tensile and bending resistance, and protects the whole cable.

In the embodiment, the inner conductor 21 is formed by twisting a plurality of strands of oxygen-free copper wires, has good low resistance, and the insulating layer 22 is made of a high-flame-retardant ceramic polyolefin material and is extruded on the surface of the inner conductor 21 in order to protect the cable better.

The utility model discloses composite cable, outer jacket by high fire-retardant ceramic polyolefin material crowded package in power sinle silk, optic fibre signal line, strengthening rib surface, outer jacket possess good bending resistance, its performance test is carried out according to GB/T5013.2-2008 standard 3.1 method, and the test does not take place electric current and open circuit and short circuit phenomenon after 300 ten thousand reciprocating motions, power sinle silk comprises inner conductor and insulating layer, is equipped with two sinle silks (positive pole and negative pole) altogether; the optical cable fiber core adopts a single-mode two-core structure, and the single fiber core adopts a single-mode fiber core with strong anti-interference performance; the reinforcing rib consists of two strands of galvanized steel wire stranded bodies and plays a role in dispersing the damage of the bending force to the internal structure of the cable; the insulating layer is wrapped on the surface of the inner conductor to form two insulating wire cores, the insulating layer is made of high-flame-retardant ceramic polyolefin material, the reinforcing ribs are distributed between the cable cores and the optical cable cores, the effect of reducing the bending force is achieved, and the normal usability of the cable is met by the perfect combination of the characteristics; by using a special die, the method is completed by utilizing a three-layer co-extrusion method, namely, two different colors are synchronously extruded to be used as the distinguishing colors of the polarity of the power cord when the outer protective layer is extruded, the polarity 5 of the power cord is simultaneously extruded and wrapped with the outer protective layer 4 by adopting the three-layer co-extrusion method, the anode of the power cord 2 is marked by adopting red ceramic polyolefin material, the cathode of the power cord 2 is marked by adopting blue ceramic polyolefin material, the covering area of the red and blue colors is not less than 30 percent of the surface of the power cord 2, the anode and the cathode of the power cord can be conveniently distinguished, the anode and the cathode of the power cord can be used as the anode and the cathode of the power cord, the installation and the construction are convenient, and the construction cost is reduced,

the insulating layer on the surface of the inner conductor and the fire-resistant insulating layer on the surface of the fiber core are made of ceramic polyolefin materials, the ceramic polyolefin materials are not melted, dropped or dropped under the conditions of 350-, after mineral oil resistance experiments (100 ℃, 168 hours), the minimum value of the change rate of the tensile strength is +/-40%, the minimum value of the elongation at break is 300%, the overall flame retardant property of the cable meets the CM-grade flame retardant property requirement of the American insurance business laboratory, and the safety of the product is guaranteed; the double-reinforcement element and the ceramic polyolefin outer protective layer material are used on the structural design to meet the requirements of the composite cable on the flexibility, safety performance and fire resistance, and the combustion performance of a product produced by the outer protective layer material can meet the requirements of A-level (non-combustible cable) regulation in GB31247-2014 (cable and optical cable combustion performance grading) standard through a combustion performance test.

The cable is structurally optimized and designed from the aspects of bending resistance, flexibility, safety performance and fire resistance, the ceramic polyolefin material releases water vapor when burning in the open fire, and a ceramic armor structure is formed on the surface of a cable core.

The utility model provides a terminal equipment connects with safe and fire-resistant composite cable in full gloss network system, this cable integrated the subassembly of multiple functions such as power transmission, video monitoring, thing networked device control and communication in an organic whole, be applicable to and adopt pure wifi to cover more difficult or the relatively poor scene of performance, there is the information box indoor, easily it is shorter to get the electric wiring distance, but this structure effective energy reduces engineering construction cost, reduces electromagnetic interference nature.

The foregoing has outlined the principles, major features, and advantages of the present invention in order that the detailed description that follows may be better understood. The foregoing examples and description merely illustrate the principles of the invention and are intended to provide further adaptations and modifications within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The fire-resistant photoelectric composite cable for the indoor wiring system is characterized by comprising an optical cable core and power supply cores which are distributed on two sides of the optical cable core in parallel, wherein reinforcing ribs are arranged between the optical cable core and the power supply cores, and each power supply core comprises an inner conductor and an insulating layer which is extruded on the surface of the inner conductor; the optical cable fiber core comprises a fiber core and a fire-resistant insulating layer coated on the surface of the fiber core; the surfaces of the optical cable fiber core, the power supply wire core and the reinforcing rib are extruded with an outer protective layer; and power supply polarities are extruded at the two end points of the outer protective layer.

2. The fire-resistant photoelectric composite cable for the indoor wiring system according to claim 1, wherein: the outer protective layer is made of ceramic polyolefin materials, and is simultaneously extruded and wrapped on the surfaces of the optical cable fiber core, the power supply wire core and the reinforcing rib through a special die by a synchronous production method to form a whole.

3. The fire-resistant photoelectric composite cable for the indoor wiring system according to claim 1, wherein: the polarity of the power supply is finished by adopting a three-layer co-extrusion method and simultaneously extruding and wrapping the outer protective layer, a red ceramic polyolefin material is adopted to mark the positive pole of a power supply wire core, a blue ceramic polyolefin material is adopted to mark the negative pole of the power supply wire core, and the coverage area of red and blue colors is not less than 30 percent of the surface of the power supply wire core.

4. The fire-resistant photoelectric composite cable for the indoor wiring system according to claim 1, wherein: the fiber core is a two-core single-mode fiber core, and transmission attenuation is small.

5. The fire-resistant photoelectric composite cable for the indoor wiring system according to claim 1, wherein: the reinforcing rib uses two strands of twisted galvanized steel wire twisting groups, and the two strands are symmetrically arranged between the fiber core of the optical cable and the core of the power supply wire in parallel.

6. The fire-resistant photoelectric composite cable for the indoor wiring system according to claim 1, wherein: the inner conductor is formed by twisting a plurality of strands of anaerobic copper wires and has good low resistance.

7. The fire-resistant photoelectric composite cable for the indoor wiring system according to claim 1, wherein: the insulating layer is extruded on the surface of the inner conductor by adopting a high-flame-retardant ceramic polyolefin material.

8. The fire-resistant photoelectric composite cable for the indoor wiring system according to claim 1, wherein: the fireproof insulating layer is made of ceramic polyolefin materials and extruded on the surface of the fiber core.