CN212874108U

CN212874108U - High resistance to compression photovoltaic cable

Info

Publication number: CN212874108U
Application number: CN202021323784.9U
Authority: CN
Inventors: 李万松; 丁运生
Original assignee: Hefei University of Technology; Anhui Lingyu Cable Technology Co Ltd
Current assignee: Hefei University of Technology; Anhui Lingyu Cable Technology Co Ltd
Priority date: 2020-07-08
Filing date: 2020-07-08
Publication date: 2021-04-02
Anticipated expiration: 2030-07-08

Abstract

The utility model discloses a high resistance to compression photovoltaic cable, including cable core and the inoxidizing coating of cladding on cable core surface, the cable core includes three wires and reinforcing support group one-tenth, the reinforcing support is by three reinforcers and the "people" style of calligraphy structure that the enhancement layer of parcel on three reinforcers surfaces is constituteed, it has evenly arranged the buffer to lie in between three reinforcers in the reinforcement layer, conductor evenly distributed is on increasing the support, the wire includes the conductor of many transposition and wraps up insulating conductor layer and the resistance to compression sheath on the conductor surface in proper order outside from the inside, the cross-section of resistance to compression sheath is "cam" cavity structures, it has the elasticity filler that blocks water still to fill in the resistance to compression sheath except the wire, the inoxidizing coating that blocks water is in proper order outside from the inside, metallic shield, flame retardant coating and cable core insulating cover, metallic shield is woven by aluminium alloy silk and is formed, mechanical strength and high temperature resistance, thereby prolonging the service life of the composite material.

Description

High resistance to compression photovoltaic cable

Technical Field

The utility model relates to the technical field of cables, specifically a high resistance to compression photovoltaic cable.

Background

Cables are generally made of one or more mutually insulated conductors surrounded by an insulating layer and a protective layer to transmit power or information from one location to another. Existing cables can be generally classified into control cables, compensation cables and shielded cables, high temperature cables, computer cables and photovoltaic cables, and the like.

However, the existing photovoltaic cable is located outdoors together with the solar energy collecting device throughout the year, and the requirements on the temperature and the strength of the existing photovoltaic cable are higher and higher in order to protect the durability of the existing photovoltaic cable; the cable is protected by the insulating rubber and the metal armor layer, so that the strength and the compression resistance of the cable are general, and therefore, the compression resistance and the strength of the existing cable are still required to be further improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high resistance to compression photovoltaic cable is in order to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-compression-resistance photovoltaic cable comprises a cable core and a protective layer coated on the surface of the cable core, wherein the cable core comprises three wires and a reinforcing support, the reinforcing support is of a herringbone structure consisting of three reinforcing bodies and a reinforcing layer coated on the outer surfaces of the three reinforcing bodies, buffering bodies are uniformly arranged among the three reinforcing bodies in the reinforcing layer, the wires are uniformly distributed on the reinforcing support and comprise a plurality of twisted conductors, an insulating conductor layer and a compression-resistance sheath, the insulating conductor layer and the compression-resistance sheath are sequentially coated on the surfaces of the conductors from inside to outside, the cross section of the compression-resistance sheath is of a cam cavity structure, elastic water-blocking filling strips are filled in the compression-resistance sheath besides the wires, the compression-resistance sheath consists of a silica gel layer and a metal armor net arranged in the silica gel layer, and the protective layer sequentially comprises a water-blocking wrapping layer, a metal shielding layer, a flame-retardant layer and, and the metal shielding layer is formed by weaving copper-clad aluminum alloy wires.

Preferably, the embedded wire that is equipped with of the great one end of resistance to compression sheath diameter, and the less one end of resistance to compression sheath diameter and the inboard laminating of wrapping the layer that blocks water.

Preferably, the buffer body is a rubber strip or a strip-shaped air bag body.

Preferably, the reinforcing body is formed by blending metal fibers and nylon fibers or glass fibers, and the metal fibers are stainless steel wires.

Preferably, the reinforcing layer is made of a PET material.

Preferably, the cable core insulating sleeve layer is made of PPEK materials.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the cable core in the utility model comprises three wires and a reinforcing support, the reinforcing support is a 'herringbone' structure consisting of three reinforcing bodies and a reinforcing layer wrapped on the outer surfaces of the three reinforcing bodies, a buffer body is evenly arranged between the three reinforcing bodies in the reinforcing layer, the conductors are evenly distributed on the reinforcing support, the wires comprise a plurality of twisted conductors, an insulating conductor layer and a compression-resistant sheath, the insulating conductor layer and the compression-resistant sheath are sequentially wrapped on the surfaces of the conductors from inside to outside, the section of the compression-resistant sheath is a 'cam' cavity structure, the compression-resistant sheath is a silica gel layer and a metal armor net arranged in the silica gel layer, the metal armor net is a stainless steel wire net and is used for improving the compression resistance and the mechanical strength of the compression-resistant sheath, the wire is embedded in the end with the larger diameter of the compression-resistant sheath, and the end with the smaller diameter of the compression-, because the wire overcoat is equipped with the resistance to compression sheath, when external effort is on the cable along the radial effect of cable, at first, the less one end of resistance to compression sheath diameter is extrusion emergence deformation under the effect that radially receives external effort, when it takes place deformation, cause the great one end of resistance to compression sheath diameter also be used for inlaying the cavity grow of establishing the wire, thereby be convenient for the wire suitably removes on the circumferencial direction, and simultaneously, under the effect of the reinforcing support of compriseing three reinforcers and the enhancement layer of parcel on three reinforcers surfaces, the resistance to compression sheath plays the effect of buffering and protection, after external effort disappears, under the effect of reinforcing support, initial position is got back respectively to wire and resistance to compression sheath, therefore, under the cooperation use through reinforcing support and resistance to compression sheath, the effect of protecting the wire has been played well enough.

(2) The utility model discloses in the reinforcing body is formed by metal fiber and nylon fiber or glass fiber blending, and metal fiber is stainless steel wire, improves the mechanical strength and the bending resistance of whole cable through the reinforcing body.

(3) The utility model discloses in cable core insulating sleeve layer is made by PPEK material, and its heat-resistant type is stable, and resistant irradiation is not less than 10⁶Gy improves the heat resistance and radiation resistance of the cable, thereby prolonging the service life of the cable.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. a wire; 2. a compression-resistant sheath; 3. a reinforcement body; 4. a reinforcing layer; 5. a water-blocking wrapping layer; 6. A metal shielding layer; 7. a flame retardant layer; 8. a cable core insulating sleeve layer; 9. a buffer body; 10. an elastic water-blocking filling strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides an embodiment: a high compression resistance photovoltaic cable comprises a cable core and a protective layer coated on the surface of the cable core, wherein the cable core comprises three wires 1 and a reinforcing support, the reinforcing support is a herringbone structure consisting of three reinforcing bodies 3 and a reinforcing layer 4 coated on the outer surface of the three reinforcing bodies 3, buffer bodies 9 are uniformly arranged among the three reinforcing bodies 3 in the reinforcing layer 4, the wires 1 are uniformly distributed on the reinforcing support, the wires 1 comprise a plurality of twisted conductors, an insulating conductor layer and a compression resistance sheath 2, the insulating conductor layer and the compression resistance sheath are sequentially coated on the surface of the conductors from inside to outside, the cross section of the compression resistance sheath 2 is of a cam cavity structure, elastic water-blocking filling strips 10 are filled in the compression resistance sheath 2 besides the wires 1, the compression resistance sheath 2 is a silica gel layer and a metal armor net arranged in the silica gel layer, the metal armor net is a stainless steel wire net and is used for improving the compression resistance and the mechanical strength of the compression resistance sheath 2, the protective layer comprises a water-blocking wrapping layer 5, a metal shielding layer 6, a flame-retardant layer 7 and a cable core insulating sleeve layer 8 in sequence from inside to outside, and the metal shielding layer 6 is formed by weaving copper-clad aluminum alloy wires.

Furthermore, the wire 1 is embedded in the end with the larger diameter of the compression-resistant sheath 2, and the end with the smaller diameter of the compression-resistant sheath 2 is attached to the inner side of the water-blocking wrapping layer 5, because the compression-resistant sheath 2 is sleeved outside the wire 1, when the external acting force acts on the cable along the radial direction of the cable, firstly, the end with the smaller diameter of the compression-resistant sheath 2 is extruded under the action of the external acting force in the radial direction to deform, and when the deformation occurs, the cavity for embedding the wire 1 is enlarged at the end with the larger diameter of the compression-resistant sheath 2, so that the wire 1 can move properly in the circumferential direction, meanwhile, under the action of the reinforcing support consisting of the three reinforcing bodies 3 and the reinforcing layer 4 wrapped on the outer surface of the three reinforcing bodies 3, the compression-resistant sheath 2 plays a role of buffering and protection, and under the action of the reinforcing support after the external acting, the lead 1 and the pressure-resistant sheath 2 return to the initial positions, respectively, and thus the function of protecting the lead 1 is well achieved by the cooperation of the reinforcing bracket and the pressure-resistant sheath 2.

Further, the buffering body 9 is a rubber strip or a strip-shaped air bag body, and when the cable is subjected to external impact force, the buffering body 9 plays roles of buffering and vibration reduction to protect the cable core.

Furthermore, the reinforcing body 3 is formed by blending metal fibers and nylon fibers or glass fibers, the metal fibers are stainless steel wires, and the mechanical strength and the bending resistance of the whole cable are improved through the reinforcing body 3.

Furthermore, the reinforcing layer 4 is made of a PET material, has the characteristics of smooth surface, small friction coefficient, small abrasion, high hardness and good toughness, and also has the advantages of strong fatigue resistance, electrical insulation and weather resistance.

Furthermore, the cable core insulating sleeve layer 8 is made of PPEK materials, and is stable in heat resistance and radiation resistance not less than 10⁶Gy improves the heat resistance and radiation resistance of the cable, thereby prolonging the service life of the cable.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a high resistance to compression photovoltaic cable, includes cable core and the inoxidizing coating of cladding on the cable core surface, its characterized in that: the cable core comprises three wires (1) and a reinforcing support, the reinforcing support is of a herringbone structure consisting of three reinforcing bodies (3) and reinforcing layers (4) wrapped on the outer surfaces of the three reinforcing bodies (3), buffering bodies (9) are uniformly arranged among the three reinforcing bodies (3) in the reinforcing layers (4), the wires (1) are uniformly distributed on the reinforcing support, the wires (1) comprise a plurality of twisted conductors, and an insulating conductor layer and a compression-resistant sheath (2) which are sequentially wrapped on the surfaces of the conductors from inside to outside, the cross section of the compression-resistant sheath (2) is of a cam cavity structure, elastic water-blocking filling strips (10) are filled in the compression-resistant sheath (2) except the wires (1), the compression-resistant sheath (2) is composed of a silica gel layer and a metal mesh arranged in the silica gel layer, and the armor protective layer sequentially comprises a water-blocking layer (5) from inside to outside, the cable comprises a metal shielding layer (6), a flame-retardant layer (7) and a cable core insulating sleeve layer (8), wherein the metal shielding layer (6) is formed by weaving copper-clad aluminum alloy wires.

2. The high crush resistance photovoltaic cable of claim 1, wherein: the embedded wire (1) that is equipped with of the great one end of resistance to compression sheath (2) diameter, and the less one end of resistance to compression sheath (2) diameter with block water around the inboard laminating of covering (5).

3. The high crush resistance photovoltaic cable of claim 1, wherein: the buffer body (9) is a rubber strip or a strip-shaped air bag body.

4. The high crush resistance photovoltaic cable of claim 1, wherein: the reinforcing body (3) is formed by blending metal fibers and nylon fibers or glass fibers, and the metal fibers are stainless steel wires.

5. The high crush resistance photovoltaic cable of claim 1, wherein: the reinforcing layer (4) is made of a PET material.

6. The high crush resistance photovoltaic cable of claim 1, wherein: the cable core insulating sleeve layer (8) is made of PPEK materials.