CN219370661U - Carbon fiber composite cable - Google Patents

Abstract

The utility model discloses a carbon fiber composite cable, which comprises a framework, cable cores, an insulating layer, an oxygen isolating layer, an inner sheath, a shielding layer, a fire-resistant layer and an outer sheath, wherein the framework is provided with a plurality of cable cores, each cable core consists of a carbon fiber wire core, an inner insulating layer, an isolating layer and an inner fire-resistant layer, and the inner insulating layer, the isolating layer and the inner fire-resistant layer are sequentially wrapped on the carbon fiber wire core from inside to outside; after the cable core and the framework are twisted into a cable, an insulating layer is extruded outside the cable core, and an oxygen isolation layer, an inner sheath, a shielding layer, a fire-resistant layer and an outer sheath are sequentially wrapped outside the insulating layer. The carbon fiber composite cable has the advantages of high temperature resistance, low energy consumption, high tensile strength, high elongation at break and the like, is wide in application range, high in safety performance, long in service life, simple in structure, safe, reliable, stable in performance and high in practicability, and can meet the use requirements in special environments.

Description

Carbon fiber composite cable

Technical Field

The utility model relates to the technical field of power cables, in particular to a carbon fiber composite cable.

Background

With the continuous expansion of the scale of industries such as the power industry, the data communication industry, the urban rail transit industry, the automobile industry, shipbuilding and the like, the demand for wires and cables has a rapid increasing trend. With the continuous improvement of the information industry level, the demand for wires and cables is also increasing. As the environment in which the cable is used becomes more and more diversified, high temperature, low temperature, bad weather, bad environment, etc., higher requirements are also put on the performance and use of the conventional cable. The traditional cable wires mostly adopt steel-cored aluminum stranded wires or steel-cored aluminum alloy wires, aluminum conductors are used for conveying electricity, and the steel cores bear transferred loads, but the wires are large in weight and large in resistance, so that the electricity transmission cost is high, the operation temperature is low, and the cable wires cannot be suitable for operation under high-temperature conditions. With the continuous progress of material technology, at the end of the 20 th century, people try to use organic composite materials to replace metal materials to manufacture core materials of wires, and novel composite material composite core wires are developed. The wire has the characteristics of high temperature resistance, large capacity, low energy consumption, long service life and the like, so that the wire is widely applied.

Through searching, china patent (issued publication No. CN 106205833B) discloses a carbon fiber composite cable core, which is disclosed in that a protective layer, a wrapping tape layer, a metal shielding layer and a transparent paper layer are sequentially coated from outside to inside; the transparent paper layer is internally provided with a conductor core and a carbon fiber composite core, and the conductor core and the carbon fiber composite core jointly form a cable core. In addition, as disclosed in chinese patent (grant publication No. CN 102810346B), a carbon fiber composite cable and a method for manufacturing a cable core thereof are disclosed, which includes a carbon fiber composite cable core and a trapezoid-section aluminum wire twisted around the carbon fiber composite cable core, wherein the carbon fiber composite cable core includes a carbon fiber center layer and a glass fiber layer coated outside the carbon fiber center layer, and the trapezoid-section aluminum wire includes an inner trapezoid-section aluminum wire and an outer trapezoid-section aluminum wire.

As is known from the disclosures of the above two patent documents, a carbon fiber composite cable satisfying the use requirements is provided from different angles, respectively. In order to enhance the competitiveness of enterprises and improve the market share, the carbon fiber composite cable is different from the carbon fiber composite cable disclosed in the prior art, and has the advantages of excellent high temperature resistance, low energy consumption, high tensile strength and elongation at break and the like, so that the safety performance and the service life of the cable are improved, and the service requirements of environmental diversification are met.

Disclosure of Invention

Aiming at the problems in the background technology, the utility model provides a composite cable with excellent high temperature resistance, low energy consumption, high tensile strength and high breaking elongation, and by using the cable, the safety performance and the service life of the cable can be improved so as to meet the use requirements of environmental diversification, in particular to a carbon fiber composite cable.

In order to solve the technical problems, the utility model adopts the following technical scheme: the carbon fiber composite cable comprises a framework, cable cores, an insulating layer, an oxygen isolation layer, an inner sheath, a shielding layer, a fire-resistant layer and an outer sheath, wherein a plurality of cable cores are arranged on the framework, each cable core consists of a carbon fiber wire core, an inner insulating layer, an isolating layer and an inner fire-resistant layer, and the inner insulating layer, the isolating layer and the inner fire-resistant layer are sequentially wrapped on the carbon fiber wire core from inside to outside; after the cable core and the framework are twisted into a cable, an insulating layer is extruded outside the cable core, and an oxygen isolation layer, an inner sheath, a shielding layer, a fire-resistant layer and an outer sheath are sequentially wrapped outside the insulating layer.

Further, the carbon fiber composite flexible cable disclosed by the utility model is characterized in that the framework is made of a silicone rubber material and is of a cross-shaped structure with four accommodating cavities, and one cable core is respectively arranged in the four accommodating cavities in the framework.

Further, the carbon fiber composite cable disclosed by the utility model comprises the carbon fiber core, wherein the carbon fiber core comprises a carbon fiber center layer and a glass fiber layer, and the glass fiber layer is coated outside the carbon fiber center layer; the inner insulating layer is formed by extrusion of synthetic mica materials, the isolating layer is made of medium-low density polyethylene or irradiation crosslinking polyethylene materials, and the inner fire-resistant layer and the fire-resistant layer are made of woven glass filaments.

Further, the carbon fiber composite cable disclosed by the utility model is characterized in that the insulating layer is made of a Teflon material.

Further, the carbon fiber composite cable disclosed by the utility model is characterized in that the oxygen barrier layer is made of a halogen-free low-smoke flame-retardant B1-grade polyolefin oxygen barrier material with an oxygen index not lower than 40.

Further, the carbon fiber composite cable disclosed by the utility model is characterized in that the inner sheath and the outer sheath are made of ceramic silicone rubber materials.

Further, the carbon fiber composite cable disclosed by the utility model is characterized in that the shielding layer is formed by weaving copper wires.

According to the carbon fiber composite cable, the cable core consists of the carbon fiber core, the inner insulating layer, the isolation layer and the inner refractory layer, and the carbon fiber core consists of the carbon fiber center layer and the glass fiber layer coated outside the carbon fiber center layer, and the carbon fiber core is used as the cable core of the cable, so that the cable has excellent high-temperature resistance; after the cable cores and the frameworks are twisted into the cable, the insulating layer is extruded outside the cable cores, and the oxygen isolation layer, the inner sheath, the shielding layer, the fire-resistant layer and the outer sheath are sequentially wrapped outside the edge layer, so that the prepared cable has the advantages of high temperature resistance, low energy consumption, high tensile strength and elongation at break and the like, and the defects of high weight and high resistance in the prior art can be overcome.

Therefore, the composite cable has the advantages of wide application range, high safety performance, long service life, simple structure, safety, reliability, stable performance and strong practicability, and can meet the use requirements in special environments.

Drawings

The utility model is described in further detail below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a schematic structural view of the cable core according to the present utility model.

The figure shows: 1-framework, 2-, 21-carbon fiber core, 211-carbon fiber center layer, 212-glass fiber layer, 22-inner insulating layer, 23-isolating layer, 24-inner fire-resistant layer, 3-insulating layer, 4-oxygen-isolating layer, 5-inner sheath, 6-shielding layer, 7-fire-resistant layer and 8-outer sheath.

Detailed Description

As shown in fig. 1 and 2, the carbon fiber composite cable of the utility model comprises a framework 1, cable cores 2, an insulating layer 3, an oxygen-insulating layer 4, an inner sheath 5, a shielding layer 6, a refractory layer 7 and an outer sheath 8, wherein the framework 1 is made of a silicone rubber material to form a cross-shaped structure with four accommodating cavities, one cable core 2 is respectively arranged in the four accommodating cavities in the framework 1, each cable core 2 consists of a carbon fiber wire core 21, an inner insulating layer 22, an isolating layer 23 and an inner refractory layer 24, and the inner insulating layer 22, the isolating layer 23 and the inner refractory layer 24 are sequentially wrapped on the carbon fiber wire core 21 from inside to outside; after the cable core 2 and the framework 1 are twisted into a cable, an insulating layer 3 is extruded outside the cable core, and an oxygen isolation layer 4, an inner sheath 5, a shielding layer 6, a fire-resistant layer 7 and an outer sheath 8 are sequentially wrapped outside the insulating layer 3.

Further, the carbon fiber composite cable of the present utility model, wherein the carbon fiber core 21 includes a carbon fiber central layer 211 and a glass fiber layer 212, and the glass fiber layer 212 is coated outside the carbon fiber central layer 211; wherein the inner insulating layer 22 is formed by extrusion of synthetic mica material, the isolating layer 23 is made of medium-low density polyethylene or irradiation cross-linked polyethylene material, and the inner fire-resistant layer 24 and the fire-resistant layer 7 are made of woven glass filaments.

Further, the carbon fiber composite cable disclosed by the utility model is characterized in that the insulating layer 3 is made of a Teflon material, the oxygen isolation layer 4 is made of a halogen-free low-smoke flame-retardant B1-level polyolefin oxygen isolation material with an oxygen index not lower than 40, the inner sheath 5 and the outer sheath 8 are both made of ceramic silicone rubber materials, and the shielding layer 6 is formed by braiding copper wires.

The carbon fiber composite cable adopting the utility model adopts the materials which are common in the cable industry in the prior art, so the composition of the materials is not described in detail. Compared with the conventional cable, the skeleton 1 is made of the silicone rubber material, so that the strength and stability of the cable in use are guaranteed, and the silicone rubber material is used for making the skeleton 1 so that the cable has certain retraction along the radial direction in winding, so that the cable has certain flexibility and is easier to wind. The carbon fiber core 21 is composed of a carbon fiber central layer 211 and a glass fiber layer 212 coated outside the carbon fiber central layer 211, and the carbon fiber core 21 is used as the cable core 2 of the cable, so that the cable has excellent high temperature resistance. The inner insulating layer 22 is formed by extrusion of synthetic mica material, and the synthetic mica material is a nonmetallic insulating material, so that the melting point of the synthetic mica material is as high as 1200-1300 ℃, and the synthetic mica material has the characteristics of good electrical insulation, extremely low vacuum air release at high temperature, acid and alkali resistance, transparency, separable stripping, elasticity and the like, is difficult to ignite by fire, ensures higher high-temperature resistance of the cable, and can better isolate damage of external open fire to the carbon fiber core 21. The isolating layer 23 is made of medium-low density polyethylene or irradiation crosslinked polyethylene material, and the heat resistance, the water resistance and the compression resistance can be greatly improved by adopting the medium-low density polyethylene or the irradiation crosslinked polyethylene material as the isolating material. The inner fire-resistant layer 24 and the fire-resistant layer 7 are made of woven glass fiber, and the woven glass fiber is used as the fire-resistant layer, so that the fireproof effect is good, and the processing cost can be reduced. The insulating layer 3 is made of a Teflon material, and the Teflon material is made of a polytetrafluoroethylene material, has the characteristics of acid resistance, alkali resistance and resistance to various organic solvents, can improve the insulating performance, and can reduce the processing cost. The oxygen isolation layer 4 is made of halogen-free low-smoke flame-retardant B1-level polyolefin oxygen isolation material with the oxygen index not lower than 40, can play a good role in flame retardance and heat absorption, can effectively inhibit the temperature rise rate of the cable core 2, further reduces the temperature of the cable core, has the performances of low heat release rate and small total heat release amount, and meets the requirements of GB 31247-2014 standard. The shielding layer 6 is formed by weaving copper wires, and can play a very good shielding effect. The inner sheath 5 and the outer sheath 8 are both made of ceramic silicone rubber materials, and the ceramic silicone rubber is a low-smoke halogen-free flame-retardant refractory material, so that the cable can be ensured to have excellent performances of fire resistance, low smoke, no halogen, flame retardance, softness and the like.

In summary, the carbon fiber composite cable has the advantages of high temperature resistance, low energy consumption, high tensile strength, high elongation at break and the like, can overcome the defects of large weight and resistance in the prior art, has wide application range, high safety performance and long service life, is simple in structure, safe and reliable, stable in performance and high in practicability, and can meet the use requirements in special environments.

The protection scope of the present utility model is not limited to the technical solutions disclosed in the specific embodiments, but the above description is only a preferred embodiment of the present utility model, and is not limited to the present utility model, and any minor modifications, equivalent substitutions and improvements made according to the technical solutions of the present utility model should be included in the protection scope of the technical solutions of the present utility model.

Claims (7)

1. The carbon fiber composite cable is characterized by comprising a framework (1), cable cores (2), an insulating layer (3), an oxygen isolation layer (4), an inner sheath (5), a shielding layer (6), a fire-resistant layer (7) and an outer sheath (8), wherein the framework (1) is provided with a plurality of cable cores (2), each cable core (2) consists of a carbon fiber wire core (21), an inner insulating layer (22), an insulating layer (23) and an inner fire-resistant layer (24), and the inner insulating layer (22), the insulating layer (23) and the inner fire-resistant layer (24) are sequentially wrapped on the carbon fiber wire core (21) from inside to outside; after the cable core (2) and the framework (1) are twisted into a cable, an insulating layer (3) is extruded outside the cable core, and an oxygen isolation layer (4), an inner sheath (5), a shielding layer (6), a fire-resistant layer (7) and an outer sheath (8) are sequentially wrapped outside the insulating layer (3).

2. The carbon fiber composite cable according to claim 1, wherein the skeleton (1) is made of a silicone rubber material and is of a cross-shaped structure with four accommodating cavities, and one cable core (2) is respectively arranged in the four accommodating cavities in the skeleton (1).

3. The carbon fiber composite cable according to claim 2, wherein the carbon fiber core (21) comprises a carbon fiber central layer (211) and a glass fiber layer (212), and the glass fiber layer (212) is coated outside the carbon fiber central layer (211); the inner insulating layer (22) is formed by extrusion of synthetic mica materials, the isolating layer (23) is made of medium-low density polyethylene or irradiation crosslinking polyethylene materials, and the inner fire-resistant layer (24) and the fire-resistant layer (7) are made of woven glass filaments.

4. A carbon fiber composite cable according to claim 3, wherein the insulating layer (3) is made of Teflon material.

5. The carbon fiber composite cable of claim 4, wherein the oxygen barrier layer (4) is made of a halogen-free low-smoke flame-retardant B1-grade polyolefin oxygen barrier material with an oxygen index not lower than 40.

6. A carbon fiber composite cable according to claim 5, wherein the inner sheath (5) and the outer sheath (8) are made of ceramic silicone rubber materials.

7. A carbon fiber composite cable according to claim 6, wherein the shielding layer (6) is woven from copper wires.