CN216250135U - High-flexibility dragging-resistant compression-resistant photovoltaic cable - Google Patents

Abstract

The utility model discloses a high-flexibility dragging-resistant compression-resistant photovoltaic cable which comprises a plurality of lead cores, wherein the lead cores are all arranged in an outer insulating sheath, insulating core layers are respectively wrapped outside the lead cores, each lead core is arranged on a sizing buffer rubber layer, a reinforced rubber layer is arranged outside the sizing buffer rubber layer, and a tensile rubber sleeve, a wear-resistant rubber sleeve, an outer insulating sheath and a sizing protective rubber sleeve are sequentially arranged outside the reinforced rubber layer. The utility model effectively improves the mechanical property of the cable, and has high flexibility while resisting stretching. The tensile rubber sleeve is made of fiber materials, and a tensile cord is added, so that the tensile capacity of the cable is greatly improved, the problem of poor flexibility is solved, the cable is effectively protected, the service life is prolonged, the failure rate is reduced, the normal work of the cable is guaranteed, and the replacement and maintenance frequency of the wire is reduced; multiple shielding is adopted, electromagnetic interference of the conductor core is avoided, and the power transmission performance is ensured.

Description

High-flexibility dragging-resistant compression-resistant photovoltaic cable

Technical Field

The utility model belongs to the technical field of power cables, and particularly relates to a high-flexibility dragging-resistant compression-resistant photovoltaic cable.

Background

Photovoltaic power generation is a technology for directly converting light energy into electric energy by utilizing the photovoltaic effect of a semiconductor interface, is a green energy source, is more and more widely used at present, and has higher and higher requirements on a photovoltaic cable matched with the photovoltaic power generation. However, when some work is performed, the photovoltaic cable needs to be dragged, and the conductor is damaged when the traditional photovoltaic cable is dragged, so that the cable cannot work normally; on the other hand, the flexibility of the existing stretch-proofing cable is not enough, the service environment is limited to be large, the cable is easily damaged due to the fact that external stress is too large when the cable is bent by force, the cable is prone to breaking down, the electrical performance is poor, the cable is easy to break when being laid, the service life is short, and a lot of inconvenience is brought to workers.

Therefore, the key to solve the problem is to develop a novel tensile photovoltaic cable with good electrical performance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-flexibility dragging-resistant compression-resistant photovoltaic cable.

The utility model is realized by the following technical scheme: the wire core is arranged in an outer insulating sheath, an insulating core layer is respectively wrapped outside each wire core, each wire core is arranged on a sizing buffer adhesive layer, each wire core is respectively wrapped by each sizing buffer adhesive layer, the sizing buffer adhesive layers and the wire cores are integrally formed, a buffer through hole is formed in the center of each sizing buffer adhesive layer, the buffer through hole can enlarge the heat dissipation area and improve the heat dissipation effect of an electric wire, a reinforced adhesive layer is arranged outside each sizing buffer adhesive layer, and a tensile rubber sleeve 12, an abrasion-resistant rubber sleeve 13, an outer insulating sheath and a sizing protective rubber sleeve are sequentially arranged outside each reinforced adhesive layer; and the exterior of the insulating core layer of each wire core is sequentially provided with a wear-resistant layer, a shielding layer and a shaping sheath.

The utility model has the beneficial effects that: 1) the utility model effectively improves the mechanical property of the cable, and has high flexibility while resisting stretching. The tensile rubber sleeve 12 is made of fiber materials, and tensile ropes are added, so that the tensile capacity of the cable is greatly improved, and meanwhile, the problem of poor flexibility is solved; multiple shielding is adopted, electromagnetic interference of the conductor core is avoided, and the power transmission performance is ensured.

2) The sizing buffer glue layer enables the cable to be squeezed and bent, so that the cable core is prevented from being broken and deformed in the squeezing and bending processes, after squeezing and bending force disappear, the internal structure of the cable can automatically reset, the tensile property of the whole cable is improved, the cable is enabled to have the compressive property, the cable is effectively protected, the service life is prolonged, the failure rate is reduced, the normal operation of the cable is guaranteed, and the replacement and maintenance frequency of the electric wire is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

reference numbers in the figures: 1-wire core, 2-insulating core layer, 3-wear layer, 4-shielding layer, 5-armor layer, 6-shaped sheath, 7-shaped buffer glue layer, 8-buffer through hole, 9-reinforced glue layer, 10-stretch-proofing cotton rope, 11-filling layer, 12-tensile rubber sleeve, 13-wear-resisting rubber sleeve, 14-outer insulating sheath, 15-shaped protective rubber sleeve and 16-spiral line.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings.

As shown in fig. 1, the highly flexible dragging-resistant and compression-resistant photovoltaic cable comprises a plurality of conductor cores 1, wherein the conductor cores 1 are all arranged in an outer insulating sheath 14, an insulating core layer 2 is wrapped outside each conductor core 1, each conductor core 1 is arranged on a sizing buffer adhesive layer 7, each conductor core 1 is wrapped by each sizing buffer adhesive layer 7, the two conductor cores are integrally formed, a buffer through hole 8 is formed in the central part of each sizing buffer adhesive layer 7, the buffer through hole 8 can enlarge the heat dissipation area, the heat dissipation effect of an electric wire is improved, the influence of the heat inside the electric wire on the structural stability and the pressure bearing performance of the electric wire is prevented, the purposes of improving the current carrying capacity, the overload capacity and the thermal stability of the cable are achieved, and meanwhile, the buffer through hole 8 also provides the allowance of shrinkage buffer due to extrusion.

The outer part of the sizing buffer glue layer 7 is provided with a reinforced glue layer 9, and the outer part of the reinforced glue layer 9 is sequentially provided with a tensile rubber sleeve 12, a wear-resistant rubber sleeve 13, an outer insulating sheath 14 and a sizing protective rubber sleeve 15.

And the exterior of the insulating core layer 2 of each wire core 1 is sequentially provided with a wear-resistant layer 3, a shielding layer 4 and a sizing sheath 6 to further protect the wire core 1, and the sizing buffer glue layer 7 is wrapped outside the sizing sheath 6.

An armor layer 5 is arranged between the shielding layer 4 and the shaping sheath 6.

The reinforced adhesive layer 9 is internally provided with at least two stretch-resistant cords 10, so that the stretch-resistant performance is improved, the wiring is convenient, and meanwhile, when the wiring is required to be dragged, the cable can be prevented from being damaged by dragging the stretch-resistant cords 10.

The setting buffer glue layer 7 is of a honeycomb structure and provides a buffer function, so that when the cable is extruded by external force, the external force is effectively removed, and the conductor core 1 is protected from being damaged and deformed.

The shielding layer 4 and the filling layer 11 are sequentially arranged between the reinforced adhesive layer 9 and the tensile rubber sleeve 12, so that the problems of short circuit and electromagnetic interference are effectively solved, the transmission performance of the system in an electromagnetic interference environment is ensured, and the distribution of an electric field is improved.

The sizing protective rubber sleeve 15 is provided with an ultraviolet-proof coating, so that the ageing resistance is improved.

The tensile rubber sleeve 12 is a rubber sleeve provided with a spiral line 16. Drag power and make tensile gum cover 12 be close to strengthening glue film 9 to the in-process that the winding core gathered together, and then make the diameter of cable diminish to can make the cable have the surplus by tensile in the axial, avoid cable and wire core 1 to be torn apart at the in-process of dragging and pulling, after dragging power and disappearing, the cable inner structure can reset automatically again, and then has improved the tensile strength of whole cable.

The spiral line 16 is a plant fiber wire or a synthetic fiber wire, effectively improves the tensile capacity of the cable, and meanwhile, the cable keeps flexible performance, is not stiff and is convenient to wire.

Claims (8)

1. The utility model provides a resistant resistance to compression photovoltaic cable of dragging of high flexibility, includes several wire cores (1), wire core (1) all sets up in external insulation sheath (14), and has wrapped up insulating core layer (2), its characterized in that respectively in the outside of each wire core (1): each wire core (1) is arranged on a sizing buffer rubber layer (7), each wire core (1) is respectively wrapped by the sizing buffer rubber layer (7), the sizing buffer rubber layer and the wire cores are integrally formed, a buffer through hole (8) is formed in the center of the sizing buffer rubber layer (7), a reinforced rubber layer (9) is arranged outside the sizing buffer rubber layer (7), and a tensile rubber sleeve (12), a wear-resistant rubber sleeve (13), an outer insulating sheath (14) and a sizing protective rubber sleeve (15) are sequentially arranged outside the reinforced rubber layer (9); the outer part of the insulating core layer (2) of each conductor core (1) is sequentially provided with a wear-resistant layer (3), a shielding layer (4) and a shaping sheath (6), and a shaping buffer glue layer (7) wraps the outer part of the shaping sheath (6).

2. The highly flexible, drag-resistant, crush-resistant photovoltaic cable of claim 1, wherein: an armor layer (5) is arranged between the shielding layer (4) and the shaping sheath (6).

3. The highly flexible, drag-resistant, crush-resistant photovoltaic cable of claim 1, wherein: at least two stretch-resistant cords (10) are arranged in the reinforced adhesive layer (9).

4. The highly flexible, drag-resistant, crush-resistant photovoltaic cable of claim 1, wherein: the setting buffer glue layer (7) is arranged to be of a honeycomb structure.

5. The highly flexible, drag-resistant, crush-resistant photovoltaic cable of claim 1, wherein: and a shielding layer (4) and a filling layer (11) are sequentially arranged between the reinforced adhesive layer (9) and the tensile rubber sleeve (12).

6. The highly flexible, drag-resistant, crush-resistant photovoltaic cable of claim 1, wherein: the shaping protective rubber sleeve (15) is provided with an ultraviolet-proof coating.

7. The highly flexible, drag-resistant, crush-resistant photovoltaic cable of claim 1, wherein: the tensile rubber sleeve (12) is a rubber sleeve provided with a spiral line (16).

8. The highly flexible, drag-resistant, crush-resistant photovoltaic cable of claim 7, wherein: the spiral line (16) is a plant fiber wire or a synthetic fiber wire.

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