Special power transmission cable for photovoltaic energy storage power station

Abstract

The utility model relates to a special power transmission cable for a photovoltaic energy storage power station, which comprises a cable body, a conductor arranged inside the cable body, a shielding layer arranged outside the conductor, an insulating sleeve arranged outside the shielding layer, and a protection mechanism arranged inside the cable body. The protection mechanism comprises a fixing block, a reinforcing rib, a water-blocking wrapping tape, a reinforcing layer, a buffer layer, an anti-torsion layer, a tensile layer, a waterproof layer and an outer sheath, and the fixing block is installed in the cable body. According to the special power transmission cable for the photovoltaic energy storage power station, firstly, the conductor has a more stable signal transmission effect through the fine oxygen-free copper wires, the conductor has a better moisture-proof and heat-resistant effect through the insulating sleeve outside the conductor, finally, the protection mechanism is arranged in the cable body, and the structures of the protection mechanism are matched with one another, so that the power transmission effect is better. Therefore, the cable body has better torsion resistance and tensile strength, the internal conductors are prevented from loosening and deforming, and the service life of the cable body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of special cables for photovoltaic power stations, in particular to a special power transmission cable for photovoltaic energy storage power stations. Background Art

[0002] A photovoltaic power station refers to a power generation system that utilizes solar energy and adopts special materials such as crystalline silicon panels, inverters and other electronic components. It is a photovoltaic power generation system that is connected to the power grid and transmits electricity to the power grid. Photovoltaic power stations are the green power development energy projects that the country encourages the most. Existing photovoltaic energy storage power stations are usually equipped with professional transmission cables during the transmission process.

[0003] When laying existing dedicated transmission cables, the cables need to be moved frequently, which will cause the cables to be twisted and pulled for a long time. Existing cables generally have poor torsion and tensile resistance. When subjected to torsional force, the metal conductor in the cable core may be twisted and deformed, which in turn causes the resistance of the conductor to change, affecting the conductivity and even causing the conductor to break. Therefore, a dedicated transmission cable for photovoltaic energy storage power stations is proposed to solve the above-mentioned problems. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a special transmission cable for photovoltaic energy storage power stations, which has the advantages of good torsional and tensile resistance, and solves the problem that the existing cables generally have poor torsional and tensile resistance. When subjected to torsional force, the metal conductor in the cable core may be twisted and deformed, which in turn causes the resistance of the conductor to change, affecting the conductivity and even causing the conductor to break.

[0005] To achieve the above object, the utility model provides the following technical solution: a special transmission cable for a photovoltaic energy storage power station, comprising a cable body, a conductor is arranged inside the cable body, a shielding layer is arranged outside the conductor, an insulating sleeve is installed outside the shielding layer, and a protective mechanism is arranged inside the cable body;

[0006] The protective mechanism includes a fixed block, a reinforcing rib, a water-blocking tape, a reinforcement layer, a buffer layer, an anti-torsion layer, an anti-tensile layer, a waterproof layer and an outer sheath; a fixed block is installed inside the cable body, four reinforcing ribs are fixedly installed outside the fixed block, a water-blocking tape is arranged outside the conductor, a reinforcement layer is fixedly installed outside the water-blocking tape, a buffer layer is fixedly installed outside the reinforcement layer, an anti-torsion layer is fixedly installed outside the buffer layer, an anti-torsion layer is fixedly installed outside the anti-torsion layer, an anti-tensile layer is fixedly installed outside the anti-tensile layer, a waterproof layer is fixedly installed outside the anti-tensile layer, and an outer sheath is fixedly installed inside the cable body.

[0007] Furthermore, the number of the conductors is four, and the four conductors are all fine oxygen-free copper wires, and the insulating sleeve is an insulating silicone rubber layer.

[0008] Furthermore, a filling layer is arranged inside the cable body, the water-blocking tape is wrapped around the outside of the filling layer, the water-blocking tape is a polyester fiber tape, and the filling layer is a filling rope.

[0009] Furthermore, the reinforcement layer is a hard plastic reinforcement layer, threading holes are opened in the inner circumference of the reinforcement layer, and the interior of the buffer layer is filled with rubber particles.

[0010] Furthermore, the anti-torsion layer is a high-strength vulcanized rubber layer, the anti-tensile layer is an aramid webbing, the waterproof layer is a silicone layer, the outer sheath is sleeved on the outside of the waterproof layer, and the outer sheath is a nylon layer.

[0011] Furthermore, the number of the threading holes is no less than thirty, a steel rope is arranged inside each of the threading holes, and the outside of the outer sheath is connected to the inner wall of the cable body.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The photovoltaic energy storage power station uses a special transmission cable. By setting a conductor, the conductor is a fine oxygen-free copper wire, which can minimize signal loss and obtain excellent high-frequency response characteristics. By setting a shielding layer to prevent external electromagnetic interference, the signal transmission is more stable. By setting an insulating sleeve, the insulating polysiloxane rubber layer has good weather resistance and temperature resistance, thereby protecting the internal conductor. By setting a protective mechanism, the various structures of the protective mechanism cooperate with each other, so that the cable body can have better torsion and tensile resistance, prevent the internal conductor from loosening and deformation, and extend the service life of the cable body.

[0014] 2. The photovoltaic energy storage power station uses a special transmission cable. The reinforcing ribs are fixed by setting a support plate. At the same time, the inner part of the cable body is reinforced and supported by the reinforcing ribs, so that the cable body has better anti-torsion performance. The filling layer can be wrapped and fixed by setting a water-blocking tape to prevent the filling rope from loosening, thereby ensuring that the internal filling layer is tighter and has better waterproof and moisture-proof effects. The reinforcement layer is set by densely arranging holes circumferentially in the hard plastic reinforcement layer, and steel ropes are set in each of the holes to make the outer wall of the reinforcement layer tighter, further enhancing the torsion resistance of the cable body. The rubber particles inside the buffer layer have a better buffering and shock-absorbing effect, which can better absorb internal and external pressures and keep the cable body stable. The anti-torsion layer and the anti-tensile layer are set, and the high-strength vulcanized rubber layer and the woven aramid webbing in the vertical and horizontal directions can better protect the cable body. Finally, the wear resistance of the cable body is enhanced by the outer sheath to improve the service life of the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0017] Figure 3 It is a schematic diagram of the protection mechanism of the utility model.

[0018] In the figure: 1 cable body, 2 conductor, 3 shielding layer, 4 insulating sleeve, 5 protection mechanism, 501 fixing block, 502 reinforcing rib, 503 water-blocking tape, 504 reinforcement layer, 505 buffer layer, 506 anti-torsion layer, 507 anti-tensile layer, 508 waterproof layer, 509 outer sheath, 6 filling layer. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 A special transmission cable for a photovoltaic energy storage power station comprises a cable body 1, a conductor 2 is arranged inside the cable body 1, a shielding layer 3 is arranged outside the conductor 2, an insulating sleeve 4 is installed outside the shielding layer 3, and a protective mechanism 5 is arranged inside the cable body 1;

[0021] The protection mechanism 5 includes a fixed block 501, a reinforcing rib 502, a water-blocking tape 503, a reinforcement layer 504, a buffer layer 505, an anti-torsion layer 506, a tensile layer 507, a waterproof layer 508 and an outer sheath 509. The fixed block 501 is installed inside the cable body 1, and four reinforcing ribs 502 are fixedly installed outside the fixed block 501. The conductor 2 is provided with a water-blocking tape 503 outside, the reinforcement layer 504 is fixedly installed outside the water-blocking tape 503, the buffer layer 505 is fixedly installed outside the reinforcement layer 504, the anti-torsion layer 506 is fixedly installed outside the buffer layer 505, the anti-torsion layer 506 is fixedly installed outside the tensile layer 507, the waterproof layer 508 is installed outside the tensile layer 507, and the outer sheath 509 is fixedly installed inside the cable body 1.

[0022] exist Figure 1 and Figure 2In the figure, the number of conductors 2 is four, and all of the four conductors 2 are fine oxygen-free copper wires, which can minimize signal loss and obtain excellent high-frequency response characteristics. The insulating sleeve 4 is an insulating polysiloxane rubber layer. By setting the insulating sleeve 4, the insulating polysiloxane rubber layer has good weather resistance and temperature resistance, thereby protecting the internal conductors 2.

[0023] exist Figure 1 and Figure 2 In the embodiment, a filling layer 6 is arranged inside the cable body 1, a water-blocking tape 503 is wrapped around the outside of the filling layer 6, the water-blocking tape 503 is a polyester fiber tape, and the filling layer 6 is a filling rope.

[0024] exist Figure 1 and Figure 3 In the figure, by setting a protective mechanism 5, the various structures of the protective mechanism 5 cooperate with each other, so that the cable body 1 can have better torsion and tensile resistance, prevent the internal conductor 2 from loosening and deforming, and extend the service life of the cable body 1. The protective mechanism 5 includes a fixed block 501, a reinforcing rib 502, a water-blocking tape 503, a reinforcement layer 504, a buffer layer 505, an anti-torsion layer 506, an anti-tensile layer 507, a waterproof layer 508 and an outer sheath 509. The reinforcement layer 504 is a hard plastic reinforcement layer, and the inner circumference of the reinforcement layer 504 is provided with threading holes. The interior of the buffer layer 505 is filled with rubber particles. By setting the reinforcement layer 504, holes are densely distributed circumferentially in the hard plastic reinforcement layer, and steel ropes are arranged in each threading hole, so that the outer wall of the reinforcement layer 504 is tighter, and the torsion resistance of the cable body 1 is further enhanced.

[0025] exist Figure 2 and Figure 3 In the figure, the torsion-resistant layer 506 is a high-strength vulcanized rubber layer, the tensile-resistant layer 507 is an aramid webbing, the waterproof layer 508 is a silicone layer, and the outer sheath 509 is sleeved on the outside of the waterproof layer 508, and the outer sheath 509 is a nylon layer.

[0026] exist Figure 2 and Figure 3 There are no less than thirty threading holes, each of which is provided with a steel rope, and the outside of the outer sheath 509 is connected to the inner wall of the cable body 1.

[0027] In summary, when the dedicated transmission cable for the photovoltaic energy storage power station is used, firstly, the fine oxygen-free copper wire is used to make the conductor 2 have a more stable signal transmission effect, and the insulating sleeve 4 outside the conductor 2 makes the conductor 2 have better moisture-proof and heat-resistant effects. Finally, a protective mechanism 5 is arranged inside the cable body 1. The various structures of the protective mechanism 5 cooperate with each other to achieve better torsion and tensile resistance of the cable body 1, prevent the internal conductor 2 from loosening and deforming, and extend the service life of the cable body 1.

[0028] The specific model specifications of each device in this article need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special transmission cable for a photovoltaic energy storage power station, comprising a cable body (1), characterized in that: A conductor (2) is arranged inside the cable body (1), a shielding layer (3) is arranged outside the conductor (2), an insulating sleeve (4) is installed outside the shielding layer (3), and a protective mechanism (5) is arranged inside the cable body (1); The protective mechanism (5) comprises a fixing block (501), a reinforcing rib (502), a water-blocking tape (503), a reinforcement layer (504), a buffer layer (505), an anti-torsion layer (506), an anti-tension layer (507), a waterproof layer (508) and an outer sheath (509); the fixing block (501) is installed inside the cable body (1); four reinforcing ribs (502) are fixedly installed outside the fixing block (501); and the water-blocking tape (503) is provided outside the conductor (2). The water-blocking tape (503) is provided with a reinforcement layer (504) fixedly installed on the outside of the water-blocking tape (503), a buffer layer (505) fixedly installed on the outside of the reinforcement layer (504), an anti-torsion layer (506) fixedly installed on the outside of the buffer layer (505), an anti-tension layer (507) fixedly installed on the outside of the anti-torsion layer (506), a waterproof layer (508) installed on the outside of the anti-tension layer (507), and an outer sheath (509) fixedly installed on the inside of the cable body (1).

2. A dedicated transmission cable for a photovoltaic energy storage power station according to claim 1, characterized in that: The number of the conductors (2) is four, and the four conductors (2) are all fine oxygen-free copper wires. The insulating sleeve (4) is an insulating polysiloxane rubber layer.

3. A dedicated transmission cable for a photovoltaic energy storage power station according to claim 1, characterized in that: A filling layer (6) is provided inside the cable body (1), the water-blocking tape (503) is wrapped around the outside of the filling layer (6), the water-blocking tape (503) is a polyester fiber tape, and the filling layer (6) is a filling rope.

4. A dedicated transmission cable for a photovoltaic energy storage power station according to claim 1, characterized in that: The reinforcement layer (504) is a hard plastic reinforcement layer, a threading hole is provided in the inner circumference of the reinforcement layer (504), and the interior of the buffer layer (505) is filled with rubber particles.

5. The dedicated transmission cable for photovoltaic energy storage power station according to claim 1, characterized in that: The anti-torsion layer (506) is a high-strength vulcanized rubber layer, the anti-tension layer (507) is an aramid webbing, the waterproof layer (508) is a silicone layer, the outer sheath (509) is sleeved on the outside of the waterproof layer (508), and the outer sheath (509) is a nylon layer.

6. A dedicated transmission cable for a photovoltaic energy storage power station according to claim 4, characterized in that: The number of the threading holes is no less than thirty, and a steel rope is arranged inside each of the threading holes. The outside of the outer sheath (509) is connected to the inner wall of the cable body (1).

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