CN216450427U - 8-shaped waterproof photovoltaic cable longitudinally wrapped by aluminum foil - Google Patents

Abstract

The application discloses an aluminum foil longitudinally-wrapped 8-shaped waterproof photovoltaic cable which comprises a power cable unit, a communication cable unit and a connecting unit, wherein the power cable unit sequentially comprises a first outer protective layer, a first armor layer, a first waterproof layer and a first inner protective layer from outside to inside; the communication cable unit sequentially comprises a second outer protective layer, a second armor layer, a second waterproof layer and a second inner protective layer from outside to inside, a plurality of communication cable cores are arranged in the second inner protective layer, and the communication cable cores sequentially comprise a second conductor, a second insulating layer, a shielding layer and a second flame-retardant layer from inside to outside; the connecting unit comprises a connecting unit protective layer and a plurality of tensile core wires positioned in the connecting unit protective layer; the first waterproof layer and the second waterproof layer both comprise longitudinal aluminum foil layers. The cable of this application is applicable to the photovoltaic power generation field, and is ultraviolet-resistant, effectual blocks water.

Description

8-shaped waterproof photovoltaic cable longitudinally wrapped by aluminum foil

Technical Field

The application relates to the field of cables, in particular to an aluminum foil longitudinal-wrapped 8-shaped waterproof photovoltaic cable.

Background

Photovoltaic power generation is a technology of directly converting light energy into electric energy by using the photovoltaic effect of a semiconductor interface. The solar cells are connected in series and then are packaged and protected to form a large-area solar cell module, and then the photovoltaic power generation device is formed by matching with components such as a power controller and the like. With the increasing attention degree of low carbon and environmental protection and the progress and development of new energy technology, the photovoltaic power generation is one of the most effective clean energy, the application has a great breakthrough in recent years, a plurality of large photovoltaic power stations are built in some desert areas and on water surfaces, the demand on power transmission cables is very large, but as the use scenes of the cables for the photovoltaic power generation are mostly in the field or even on the water surface, higher requirements on the waterproof performance of the cables are provided. And some photovoltaic cables can not communicate, so that some photovoltaic power stations which need to automatically control angles have great inconvenience, and the cost for independently laying the communication cables is high.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims at overcoming prior art's defect, provides a waterproof photovoltaic cable of 8 font is indulged to aluminium foil.

The technical scheme is as follows: an aluminum foil longitudinally-wrapped 8-shaped waterproof photovoltaic cable comprises a power cable unit, a communication cable unit and a connecting unit, wherein the power cable unit sequentially comprises a first outer protective layer, a first armor layer, a first waterproof layer and a first inner protective layer from outside to inside, the first inner protective layer comprises a plurality of power cable cores, and the power cable cores sequentially comprise a first conductor, a first insulating layer and a first flame-retardant layer from inside to outside; the communication cable unit sequentially comprises a second outer protective layer, a second armor layer, a second waterproof layer and a second inner protective layer from outside to inside, a plurality of communication cable cores are arranged in the second inner protective layer, and the communication cable cores sequentially comprise second conductors, a second insulating layer, a shielding layer and a second flame-retardant layer from inside to outside; the connecting unit comprises a connecting unit protective layer and a plurality of tensile core wires positioned in the connecting unit protective layer; the first waterproof layer and the second waterproof layer both comprise longitudinal aluminum foil layers.

Power cable unit, linkage unit and communication cable unit from the top down distribute, wholly are 8 shape structures, and the structure is more reasonable.

Further, the first waterproof layer and the second waterproof layer are both composite waterproof layers and comprise a longitudinal aluminum foil wrapping layer and a low-density polyolefin layer.

Thereby adopting the composite waterproof layer to obtain better waterproof effect.

Furthermore, the tensile core wire is a glass fiber tensile core wire, the tensile core wire has more than 3, and the sections of the 3 tensile core wires are arranged in a row.

Therefore, the width of the connecting unit is wide, and the connecting unit is provided with a plurality of tensile core wire supports, so that the tensile property of the connecting unit is good in both transverse strength and longitudinal tensile property.

Further, the integrative extrusion molding of the outer sheath of first outer jacket, linkage element sheath and second, the outer sheath of first outer jacket, linkage element sheath and second is wear-resisting anti ultraviolet protective layer.

The integrated into one piece's structure makes cable bulk strength better, and the wholeness is stronger, and water-proof effects is better.

Further, the first flame-retardant layer and the second flame-retardant layer are both low-smoke halogen-free flame-retardant layers; the first conductor and the second conductor are both copper conductors; the shielding layer is a tinned copper wire braided shielding layer.

Further, the first inner sheath layer and the second inner sheath layer are both polyethylene inner sheath layers.

Furthermore, the number of the cable cores and the number of the communication cable cores are more than 3.

Has the advantages that: as shown in the figure, the cable of this application adopts the split type design of power cable unit and communication cable unit to avoid the interference of each other between the two, and wholly be 8 font structures, the structure is more reasonable, through a plurality of tensile ropes at linkage element center, has increased the whole tensile effect of cable. And as shown in the figure, the photovoltaic power generation system has the functions of power transmission and communication and control, so that the photovoltaic power generation system is more intelligent and has better use effect on the photovoltaic power generation station with automatic control.

Drawings

Fig. 1 is a schematic cross-sectional view of a cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Reference numerals are as follows: 1.1 a first conductor; 1.2 a first insulating layer; 1.3 a first flame retardant layer; 2.1 a first inner sheath layer; 2.2 a first waterproof layer; 2.3 a first armor layer; 2.4 a first outer jacket; 3.1 a second conductor; 3.2 a second insulating layer; 3.3 a shielding layer; 3.4 a second flame retardant layer; 4.1 a second inner sheath layer; 4.2 a second waterproof layer; 4.3 a second armor layer; 4.4 a second outer protective layer; 5.1 tensile core wire; 5.2 connecting unit sheath.

As shown in the figure: an aluminum foil longitudinally-wrapped 8-shaped waterproof photovoltaic cable comprises a power cable unit, a communication cable unit and a connecting unit, wherein the power cable unit sequentially comprises a first outer protective layer 2.4, a first armor layer 2.3, a first waterproof layer 2.2 and a first inner protective layer 2.1 from outside to inside, a plurality of power cable cores are contained in the first inner protective layer, and the power cable cores sequentially comprise a first conductor 1.1, a first insulating layer 1.2 and a first flame-retardant layer 1.3 from inside to outside; the communication cable unit sequentially comprises a second outer protective layer 4.4, a second armor layer 4.3, a second waterproof layer 4.2 and a second inner protective layer 4.1 from outside to inside, a plurality of communication cable cores are arranged in the second inner protective layer 4.1, and the communication cable cores sequentially comprise a second conductor 3.1, a second insulating layer 3.2, a shielding layer 3.3 and a second flame-retardant layer 3.4 from inside to outside; the connecting unit comprises a connecting unit protective layer 5.2 and a plurality of tensile core wires 5.1 positioned in the connecting unit protective layer 5.2; the first waterproof layer 2.2 and the second waterproof layer 4.2 both comprise longitudinal aluminum foil clad layers.

The first waterproof layer 2.2 and the second waterproof layer 4.2 are both composite waterproof layers and comprise a longitudinal aluminum foil layer and a low-density polyolefin layer. Tensile heart yearn 5.1 is glass fiber tensile heart yearn, tensile heart yearn 5.1 has more than 3, and the cross-section of 3 tensile heart yearns is arranged into one row. First outer jacket 2.4, the outer sheath of linkage element 5.2 and second 4.4 integrative extrusion moulding, first outer jacket 2.4, the outer sheath of linkage element 5.2 and second 4.4 are wear-resisting anti ultraviolet protective layer. The first flame-retardant layer 1.3 and the second flame-retardant layer 3.4 are both low-smoke halogen-free flame-retardant layers; the first conductor 1.1 and the second conductor 3.1 are both copper conductors; the shielding layer 3.3 is a tinned copper wire braided shielding layer. The first inner sheath layer 2.1 and the second inner sheath layer 4.1 are both polyethylene inner sheath layers. The cable core and the communication cable core are both provided with more than 3 cables.

The utility model provides a cable includes power cable unit and communication cable unit, thereby in photovoltaic power generation's use scene, both can be used for the transmission of electric power, can transmit communication signal, control signal etc., thereby satisfy more use scenes's demand, and as shown in the figure, when concrete preparation, power cable unit and communication cable unit and linkage unit are one row of distribution, thereby be "8" font on the whole, and the outer jacket all is integrated into one piece, thereby avoid the mutual interference of two kinds of cables, and the holistic wholeness of cable is strong, combine first, two waterproof layers, it is effectual to block water, and cable ultraviolet resistance radiation, can durable use.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

While the utility model has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the utility model as defined in the following claims.

Claims (7)

1. The aluminum foil longitudinally-wrapped 8-shaped waterproof photovoltaic cable is characterized by comprising a power cable unit, a communication cable unit and a connecting unit, wherein the power cable unit sequentially comprises a first outer protective layer (2.4), a first armor layer (2.3), a first waterproof layer (2.2) and a first inner protective layer (2.1) from outside to inside, the first inner protective layer contains a plurality of power cable cores, and the power cable cores sequentially comprise a first conductor (1.1), a first insulating layer (1.2) and a first flame retardant layer (1.3) from inside to outside; the communication cable unit sequentially comprises a second outer protective layer (4.4), a second armor layer (4.3), a second waterproof layer (4.2) and a second inner protective layer (4.1) from outside to inside, a plurality of communication cable cores are arranged in the second inner protective layer (4.1), and the communication cable cores sequentially comprise a second conductor (3.1), a second insulating layer (3.2), a shielding layer (3.3) and a second flame-retardant layer (3.4) from inside to outside; the connecting unit comprises a connecting unit protective layer (5.2) and a plurality of tensile core wires (5.1) positioned in the connecting unit protective layer (5.2); the first waterproof layer (2.2) and the second waterproof layer (4.2) both comprise longitudinal aluminum foil layers.

2. The waterproof photovoltaic cable shaped as 8 and longitudinally wrapped with aluminum foil according to claim 1, characterized in that the first waterproof layer (2.2) and the second waterproof layer (4.2) are both composite waterproof layers comprising a longitudinally wrapped aluminum foil layer and a low density polyolefin layer.

3. The waterproof photovoltaic cable of figure 8 longitudinally wrapped with aluminum foil as claimed in claim 1, wherein the tensile core (5.1) is a glass fiber tensile core, and the tensile core (5.1) has more than 3 tensile cores, and the cross sections of the 3 tensile cores are arranged in a row.

4. The waterproof photovoltaic cable shaped as 8 and longitudinally wrapped with aluminum foil as claimed in claim 1, wherein the first outer sheath (2.4), the connecting element sheath (5.2) and the second outer sheath (4.4) are integrally formed by extrusion molding, and the first outer sheath (2.4), the connecting element sheath (5.2) and the second outer sheath (4.4) are all wear-resistant and ultraviolet-proof sheaths.

5. The aluminum foil longitudinally-wrapped 8-shaped waterproof photovoltaic cable according to claim 1, characterized in that the first flame-retardant layer (1.3) and the second flame-retardant layer (3.4) are both low-smoke halogen-free flame-retardant layers; the first conductor (1.1) and the second conductor (3.1) are both copper conductors; the shielding layer (3.3) is a tinned copper wire braided shielding layer.

6. The waterproof photovoltaic cable of figure 8 longitudinally wrapped in aluminum foil according to claim 1, characterized in that the first inner sheath (2.1) and the second inner sheath (4.1) are both polyethylene inner sheaths.

7. The aluminum foil longitudinally-wrapped 8-shaped waterproof photovoltaic cable according to claim 1, wherein the number of the power cable cores and the number of the communication cable cores are more than 3.

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