CN215600131U - Corrosion-resistant double-layer sealed photovoltaic cable - Google Patents
Corrosion-resistant double-layer sealed photovoltaic cable Download PDFInfo
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- CN215600131U CN215600131U CN202121552594.9U CN202121552594U CN215600131U CN 215600131 U CN215600131 U CN 215600131U CN 202121552594 U CN202121552594 U CN 202121552594U CN 215600131 U CN215600131 U CN 215600131U
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Abstract
The utility model relates to the technical field of cables, in particular to a corrosion-resistant double-layer sealed photovoltaic cable which comprises a cable core, a sheath structure and factice, wherein the sheath structure is wrapped outside the cable core, and the factice is filled in a gap between the cable core and the sheath structure; the cable core comprises a wire core formed by twisting a plurality of conductors, a sealing wrapping tape I wrapped on the outer side of the wire core, an insulating layer wrapped on the outer side of the sealing wrapping tape I, a base layer sheath wrapped on the outer side of the insulating layer and a reinforcing core filled in a gap between the wire core and the sealing wrapping tape I; the sheath structure comprises a second sealing wrapping tape, an armor layer and an outer sheath; the armor layer is arranged between the second sealing wrapping tape and the outer sheath; and the second sealing wrapping belt is tightly wrapped on the outer side of the cable core. According to the utility model, the sealing tape I and the sealing tape II are arranged on the outer sides of the wire core and the cable core, so that double-layer sealing of the cable is realized, the sealing effect of the cable is improved, the cable is prevented from being damaged by collision, and the service life of the cable is prolonged.
Description
Technical Field
The utility model relates to the technical field of cables, in particular to a corrosion-resistant double-layer sealed photovoltaic cable.
Background
In recent years, attention has been paid to an environmentally friendly industry such as a solar industry, and most of the industries use solar energy for power generation. Solar power generation usually needs to be carried out by building a photovoltaic power station, and the photovoltaic power station is usually provided with important components such as a photovoltaic module, an inverter, a price-raising transformer, a photovoltaic cable which is connected in a matching way and the like.
When the existing photovoltaic cable is used, the existing photovoltaic cable is usually erected in the air or underground, the cable erected in the air is often influenced by environmental factors such as sunlight and rainwater and is extremely easy to be corroded and damaged, the cable erected underground is often influenced by geology and is extruded by soil and stones of the environment and corroded by underground water, and therefore the cable with good sealing performance and corrosion resistance is urgently needed to be used as the photovoltaic cable.
Disclosure of Invention
The utility model aims to provide a corrosion-resistant double-layer sealed photovoltaic cable to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a corrosion-resistant double-layer sealed photovoltaic cable comprises a cable core, a sheath structure and factice, wherein the sheath structure is wrapped outside the cable core, and the factice is filled in a gap between the cable core and the sheath structure; the cable core comprises a wire core formed by twisting a plurality of conductors, a sealing wrapping tape I wrapped on the outer side of the wire core, an insulating layer wrapped on the outer side of the sealing wrapping tape I, a base layer sheath wrapped on the outer side of the insulating layer and a reinforcing core filled in a gap between the wire core and the sealing wrapping tape I; the sheath structure comprises a second sealing wrapping tape, an armor layer and an outer sheath; the armor layer is arranged between the second sealing wrapping tape and the outer sheath; and the second sealing wrapping belt is tightly wrapped on the outer side of the cable core.
Preferably, in the corrosion-resistant double-layer sealed photovoltaic cable, the number of the conductors of the wire core is not less than 4, so that when the wire core is twisted, one of the conductors is taken as an axis, and the rest of the conductors are uniformly wrapped on the outer side of the axis conductor in a clockwise direction or an anticlockwise direction to form a tightly twisted wire core.
Based on the technical characteristics, the wire core formed by twisting the plurality of conductors has good conductivity and torsion resistance, so that the stable conductive output of the cable can be ensured, the cable can be prevented from being bent and damaged in the use process, and the service life of the cable is prolonged.
Preferably, in the corrosion-resistant double-layer sealed photovoltaic cable, the first sealing tape is a PP antistatic tape; the second sealing wrapping tape is a PET wrapping tape.
Based on above-mentioned technical characteristic, prevent through PP that static band carries out sealed parcel as a pair of sinle silk in sealed band, seal the parcel as two pairs of cable cores in sealed band through PET band, effectively realize the double-deck of cable through sealed band one and sealed band two and seal, improve the sealed effect of cable, reduce the cable and receive the rainwater erosion, avoid the cable to receive the damage of colliding with, prolong the life of cable.
Preferably, in the corrosion-resistant double-layer sealed photovoltaic cable, the insulating layer is made of rigid polyvinyl chloride.
Based on the technical characteristics, the hard polyvinyl chloride has good tensile, bending, compression and impact resistance, has good electrical insulation and flame retardance, and can effectively improve the compression resistance, insulation and flame retardance of the cable core.
Preferably, in the corrosion-resistant double-layer sealed photovoltaic cable, the base sheath is made of a high-density polyethylene material; the outer sheath is prepared by crosslinking low-smoke halogen-free flame-retardant polyolefin.
Based on the technical characteristics, the high-density polyethylene has good tensile strength and creep property, better wear resistance, electrical insulation property, toughness and cold resistance, and can effectively reduce the damage of the wire core and ensure the stable use of the wire core when used as a base layer sheath; the cross-linked low-smoke halogen-free flame-retardant polyolefin has good high temperature resistance, cold resistance, oil resistance, acid, alkali, salt, ultraviolet and flame resistance, and can effectively protect the cable core when used as an outer sheath, avoid the cable core from being damaged and broken, and ensure the stable use of the cable core.
Preferably, in the corrosion-resistant double-layer sealed photovoltaic cable, the reinforcing core is formed by twisting polyamide fibers.
Based on above-mentioned technical characteristics, polyamide fiber has good mechanical strength, wearability and corrosion resistance, and the quality is lighter, when the hank is synthetic for strengthening the core and using, can support the clearance of sinle silk and sealed band one, reduces the extrusion damage of a pair of sinle silk in sealed band, improves the overall structure intensity of cable core, reduces the cable core and buckles and damage.
Compared with the prior art, the utility model has the beneficial effects that:
1) according to the corrosion-resistant double-layer sealed photovoltaic cable, the sealing tape I and the sealing tape II are arranged on the outer sides of the cable core and the cable core, so that double-layer sealing of the cable is realized, the sealing effect of the cable is improved, the cable is prevented from being damaged by collision, and the service life of the cable is prolonged;
2) according to the corrosion-resistant double-layer sealed photovoltaic cable, the reinforcing core is arranged in the gap between the cable core and the sealing belting, so that the cable core can be effectively supported through the reinforcing core, the overall structural strength of the cable core is improved, and the bending damage of the cable core is reduced;
3) this corrosion-resistant double-deck sealed photovoltaic cable sets up basic unit's sheath and oversheath through in sealed band one and sealed band two outsides, has realized the dual protection to the cable, has improved the wear-resisting, insulating, high temperature resistant, ultraviolet protection, the flame retardant property of cable, reduces the cable and receives sunshine, rainwater erosion, avoids the cable to receive the pressurized, collide with, damage, has guaranteed the stable electrically conductive of cable, has prolonged the life of cable.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic cross-sectional view of the cable core of the present invention;
FIG. 3 is a schematic view of a connection structure of a core and a reinforcing core according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a cable core; 11. a wire core; 12. a first sealing tape; 13. an insulating layer; 14. a base layer jacket; 15. a reinforcing core; 2. an ointment; 3. a second sealing tape; 4. an armor layer; 5. an outer sheath.
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.
Referring to fig. 1-3, the present invention provides a technical solution: a corrosion-resistant double-layer sealed photovoltaic cable comprises a cable core 1, a sheath structure wrapped outside the cable core 1 and factice 2 filled in a gap between the cable core 1 and the sheath structure; the cable core 1 comprises a wire core 11 formed by twisting a plurality of conductors, a sealing wrapping tape I12 wrapped outside the wire core 11, an insulating layer 13 wrapped outside the sealing wrapping tape I12, a base layer sheath 14 wrapped outside the insulating layer 13 and a reinforcing core 15 filled in a gap between the wire core 11 and the sealing wrapping tape I12; the sheath structure comprises a second sealing wrapping tape 3, an armor layer 4 and an outer sheath 5; the armor layer 4 is arranged between the second sealing wrapping tape 3 and the outer sheath 5; the sealing tape II 3 is tightly wrapped on the outer side of the cable core 1;
please refer to fig. 2 and 3 in the drawings of the specification: the number of the conductors of the wire core 11 is not less than 4, so that when the wire core 11 is twisted, one conductor is taken as an axis, and the rest conductors are uniformly wrapped on the outer side of the axis conductor in a clockwise direction or an anticlockwise direction to form the tightly twisted wire core 11; in this embodiment, the number of the conductors of the wire core 11 is 7, the twisting direction of the conductors is clockwise, and the wire core 11 formed by twisting the 7 conductors has good conductivity and torsion resistance, so that the stable conductive output of the cable can be ensured, the cable can be prevented from being bent and damaged in the use process, and the service life of the cable is prolonged;
please refer to fig. 1 and 2 in the drawings of the specification: the first sealing wrapping tape 12 is a PP anti-static wrapping tape; the second sealing wrapping tape 3 is a PET wrapping tape; in the embodiment, the PP anti-static wrapping belt is used as the first sealing wrapping belt 12 to seal and wrap the wire core 11, the PET wrapping belt is used as the second sealing wrapping belt 3 to seal and wrap the cable core 1, double-layer sealing of the cable is effectively achieved through the first sealing wrapping belt 12 and the second sealing wrapping belt 3, the sealing effect of the cable is improved, the cable is prevented from being corroded by rainwater, the cable is prevented from being collided and damaged, and the service life of the cable is prolonged;
please refer to fig. 2 in the drawings of the specification: wherein the insulating layer 13 is made of rigid polyvinyl chloride; in the embodiment, the insulating layer 13 prepared from the rigid polyvinyl chloride has good tensile, bending, compression and impact resistance, good electrical insulation and flame retardance, can effectively improve the compression resistance, insulation and flame retardance of the cable core 1, avoids the cable from being damaged by extrusion in the using process, and ensures the stable conduction of the cable;
please refer to fig. 1 and 2 in the drawings of the specification: wherein the base layer sheath 14 is made of a high density polyethylene material; the outer sheath 5 is prepared by cross-linking low-smoke halogen-free flame-retardant polyolefin; in the embodiment, the base layer sheath 14 prepared from the high-density polyethylene has good tensile strength and creep property, better wear resistance, electrical insulation property, toughness and cold resistance, can effectively reduce damage of the wire core 11, and ensures stable use of the wire core 11; the outer sheath 5 prepared by crosslinking the low-smoke halogen-free flame-retardant polyolefin has good high-temperature resistance, cold resistance, oil resistance, acid, alkali, salt, ultraviolet and flame resistance, can effectively protect the cable core 1, avoids the cable core 1 from being damaged and broken, and ensures the stable use of the cable core 1;
please refer to fig. 2 in the drawings of the specification: wherein the reinforcing core 15 is formed by stranding polyamide fibers; in the embodiment, the reinforced core 15 formed by twisting the polyamide fibers has good mechanical strength, wear resistance and corrosion resistance, is light in weight, can support the gap between the wire core 11 and the sealing tape I12, reduces the extrusion damage of the sealing tape I12 to the wire core 11, improves the overall structural strength of the cable core 1, and reduces the bending damage of the cable core 1;
in the embodiment, the ointment 2 is a waterproof ointment, so that the waterproof effect of the cable core 1 is further improved; the armor layer 4 is steel-tape armor and is used for improving the structural strength of the cable core 1 and ensuring that the cable can be stably used.
Principle of operation
When the corrosion-resistant double-layer sealed photovoltaic cable is used, the reinforcing core 15 arranged in the gap between the wire core 11 and the sealing belting I12 can effectively support the cable core 1, the overall structural strength of the cable core 1 is improved, and bending damage of the cable core 1 is reduced; the sealing tape I12 and the sealing tape II 3 are arranged on the wire core 11 and the outer side of the cable core 1, so that double-layer sealing of the cable is realized, and the sealing effect of the cable is improved; through set up basic unit's sheath 14 and oversheath 5 in sealed band one 12 and sealed band two 3 outsides, realized the dual protection to the cable, improved the wear-resisting, insulating, high temperature resistant, ultraviolet protection, the fire behavior of cable, it receives sunshine, rainwater erosion to reduce the cable, avoids the cable to receive the pressurized, collide with, damage, has guaranteed that the stability of cable is electrically conductive, has prolonged the life of cable.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims (6)
1. A corrosion-resistant double-layer sealed photovoltaic cable comprises a cable core (1), a sheath structure wrapped on the outer side of the cable core (1), and factice (2) filled in a gap between the cable core (1) and the sheath structure; the method is characterized in that: the cable core (1) comprises a wire core (11) formed by twisting a plurality of conductors, a sealing wrapping tape I (12) wrapped outside the wire core (11), an insulating layer (13) wrapped outside the sealing wrapping tape I (12), a base layer sheath (14) wrapped outside the insulating layer (13) and a reinforcing core (15) filled in a gap between the wire core (11) and the sealing wrapping tape I (12); the sheath structure comprises a second sealing wrapping tape (3), an armor layer (4) and an outer sheath (5); the armor layer (4) is arranged between the second sealing wrapping tape (3) and the outer sheath (5); the sealing tape II (3) is tightly wrapped on the outer side of the cable core (1).
2. The corrosion-resistant double-layer sealed photovoltaic cable of claim 1, wherein: the number of the conductors of the wire cores (11) is not less than 4, so that when the wire cores (11) are twisted, one conductor is taken as an axis, and the rest conductors are uniformly wrapped on the outer side of the axis conductor in a clockwise direction or an anticlockwise direction to form the tightly twisted wire cores (11).
3. The corrosion-resistant double-layer sealed photovoltaic cable of claim 1, wherein: the first sealing wrapping tape (12) is a PP anti-static wrapping tape; the second sealing wrapping tape (3) is a PET wrapping tape.
4. The corrosion-resistant double-layer sealed photovoltaic cable of claim 1, wherein: the insulating layer (13) is made of rigid polyvinyl chloride.
5. The corrosion-resistant double-layer sealed photovoltaic cable of claim 1, wherein: the base layer sheath (14) is prepared from a high-density polyethylene material; the outer sheath (5) is prepared by cross-linking low-smoke halogen-free flame-retardant polyolefin.
6. The corrosion-resistant double-layer sealed photovoltaic cable of claim 1, wherein: the reinforced core (15) is formed by stranding polyamide fibers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552594.9U CN215600131U (en) | 2021-07-08 | 2021-07-08 | Corrosion-resistant double-layer sealed photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121552594.9U CN215600131U (en) | 2021-07-08 | 2021-07-08 | Corrosion-resistant double-layer sealed photovoltaic cable |
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| CN215600131U true CN215600131U (en) | 2022-01-21 |
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| CN202121552594.9U Active CN215600131U (en) | 2021-07-08 | 2021-07-08 | Corrosion-resistant double-layer sealed photovoltaic cable |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530293A (en) * | 2022-03-01 | 2022-05-24 | 广东新亚光电缆股份有限公司 | Preparation method of 1 KV overhead insulated cable |
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2021
- 2021-07-08 CN CN202121552594.9U patent/CN215600131U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114530293A (en) * | 2022-03-01 | 2022-05-24 | 广东新亚光电缆股份有限公司 | Preparation method of 1 KV overhead insulated cable |
| CN114530293B (en) * | 2022-03-01 | 2024-04-05 | 广东新亚光电缆股份有限公司 | Preparation method of 1 kilovolt overhead insulated cable |
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