CN220420293U - Waterproof buried photovoltaic cable - Google Patents
Waterproof buried photovoltaic cable Download PDFInfo
- Publication number
- CN220420293U CN220420293U CN202321677365.9U CN202321677365U CN220420293U CN 220420293 U CN220420293 U CN 220420293U CN 202321677365 U CN202321677365 U CN 202321677365U CN 220420293 U CN220420293 U CN 220420293U
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- CN
- China
- Prior art keywords
- buffer
- layer
- cable
- coating layer
- buffer piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 61
- 239000011247 coating layer Substances 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 10
- 230000001681 protective effect Effects 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 238000004132 cross linking Methods 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 239000004800 polyvinyl chloride Substances 0.000 claims description 4
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 4
- 239000004760 aramid Substances 0.000 claims description 3
- 229920003235 aromatic polyamide Polymers 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 4
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000001125 extrusion Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The utility model discloses a waterproof buried photovoltaic cable, which comprises a filling layer, a cable and a buffer piece, wherein a plurality of buffer layers are arranged on the peripheral wall of the filling layer, and one surface of the buffer layer, which is far away from the filling layer, is provided with an accommodating groove with an outward opening; the cable is arranged in the accommodating groove, and the inner sheath is wrapped outside the cable core; the buffer piece is covered on the opening of the accommodating groove; and a propping block propping against the buffer piece is also arranged between the adjacent buffer pieces. According to the utility model, the buffer piece is arranged in the upper part of the cable and is an arc-shaped elastic rubber plate, the buffer piece deforms, excessive abrasion between the two ends of the buffer piece and the filling layer or the insulating layer in the cable is prevented, especially when the buffer piece is repeatedly extruded, so that the damage to the inside of the cable is avoided, and meanwhile, the buffer layer is also arranged in the cable, and the buffer layer is arranged to prevent the damage to the low-cost cable caused by excessive extrusion when the low-cost cable is impacted by larger external force.
Description
Technical Field
The utility model relates to the field of cables, in particular to a waterproof buried photovoltaic cable.
Background
Buried cables are cables that are buried more often than ordinary overhead wires, and are therefore also called underground cables. The cable is made of one or more mutually insulated conductors encased in an insulating layer and a protective layer for the transfer of electricity or information from one place to another. After entering a modern society, due to reasons of shortage of urban land, high traffic pressure, urban construction and the like, underground cable transmission modes are commonly adopted in large cities, and compared with overhead lines, the underground cable has the advantages of small occupied area, reliable transmission, high anti-interference capability and the like.
The buffer performance of the existing underground buried cable is poor, because the existing underground buried cable is buried underground, if a large acting force is applied to the ground, for example, a heavy truck passes through the ground where the cable is buried, the cable can be subjected to large pressure, the cable can be stressed to be damaged, and the abrasion among inner cable cores is more serious when the existing cable is extruded by repeated stress.
Disclosure of Invention
An object of the present utility model is to provide a waterproof buried photovoltaic cable which solves at least any one of the above technical problems.
A further object of the utility model is to avoid that the ground can be buffered when receiving a large force, and to avoid that the cable is damaged by the force.
It is a further object of the present utility model to improve the wear and corrosion resistance of the cable and to increase the service life of the cable.
In particular, the present utility model provides a waterproof buried photovoltaic cable, said cable comprising,
the cable comprises a cable core, a first coating layer, a second coating layer and a third coating layer, wherein the first coating layer, the second coating layer and the third coating layer are sequentially arranged from inside to outside, the first coating layer is made of a polyvinyl chloride low-smoke halogen-free material, the second coating layer is made of a low-smoke halogen-free irradiation crosslinking material, and the third coating layer is made of an irradiation crosslinking polyethylene insulating material.
The outer peripheral wall of the filling layer is provided with a plurality of buffer layers, and one surface of the buffer layer, which is far away from the filling layer, is provided with an accommodating groove with an outward opening; the cable is arranged in the accommodating groove;
the buffer piece is covered on the opening of the accommodating groove; a propping block propping against the buffer piece is also arranged between the adjacent buffer pieces;
the wear-resistant layer is sleeved on the outer side of the buffer piece, and a filler is arranged between the wear-resistant layer and the abutting block;
and the protective jacket is tightly attached to the wear-resistant layer.
Further, both ends of the supporting block are provided with inclined planes which are in contact with the buffer layer and the buffer piece, and the middle part of the supporting block is provided with a fixing sheet which is positioned between the two buffer layers.
Further, a reinforcing core is arranged in the middle of the filling layer.
Further, the buffer layer may be made of plastic material.
Further, the filling layer adopts an aramid rope.
Further, the cross section of the buffer piece is arc-shaped.
The utility model has the technical effects and advantages that:
according to the utility model, the buffer piece is arranged in the upper part of the cable, the buffer piece is an arc-shaped elastic rubber plate, the buffer piece is matched with the abutting block, the abutting block is used for unloading force, meanwhile, when the two ends of the buffer piece abut against the abutting block, the buffer piece can be prevented from deforming when the cable encounters large external force impact, the two ends of the buffer piece and a filling layer or an insulating layer in the cable are prevented from being excessively worn, especially when the buffer piece is repeatedly extruded, so that the damage to the interior of the cable is avoided, the service life of the cable is reduced, and meanwhile, the buffer layer is also arranged in the cable, and the buffer layer is arranged, so that the low-cost cable is prevented from being excessively extruded and damaged when the cable is subjected to large external force impact.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:
FIG. 1 is a schematic diagram of the structure of the present utility model.
Fig. 2 is a schematic plan view of the present utility model.
Fig. 3 is a schematic view of the cable structure of the present utility model.
In the figure: 1. the protective jacket comprises a protective jacket body, 101, an insulating layer, 2, a wear-resistant layer, 3, a filling layer, 4, a buffer piece, 5, a cable, 501, a cable core, 502, a first coating layer, 503, a second coating layer, 504, a third coating layer, 6, a buffer layer, 7, a supporting block, 701, a fixing piece, 8, a filler, 9 and a reinforcing core.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
FIG. 1 is a schematic diagram of the structure of the present utility model. Fig. 2 is a schematic plan view of the present utility model.
The scheme of the embodiment provides a waterproof buried photovoltaic cable, which comprises a filling layer 3, a cable 5, a buffer piece 4, a wear-resistant layer 2 and a protective jacket 1, wherein a plurality of buffer layers 6 are arranged on the peripheral wall of the filling layer 3, the buffer layers 6 are arranged in an annular array with the filling layer 3 as a center, and one surface of the buffer layers 6, which is far away from the filling layer 3, is provided with a containing groove with an outward opening; the cable 5 is fixedly arranged in the accommodating groove, the cable 5 comprises a cable core 501, a first coating layer 502, a second coating layer 503 and a third coating layer 504, wherein the cable core can adopt a plurality of strands of metal conductors, the first coating layer 502, the second coating layer 503 and the third coating layer 504 are sequentially arranged from inside to outside, the first coating layer 502 adopts a polyvinyl chloride low-smoke halogen-free material, the second coating layer 503 adopts a low-smoke halogen-free irradiation crosslinking material, the third coating layer adopts an irradiation crosslinking polyethylene insulating material, and the second coating layer and the third coating layer are combined together in a hot-press extrusion molding coating mode; the buffer piece 4 is covered on the opening of the accommodating groove and directly protects the cable 5; and a supporting block 7 which is propped against the buffer piece 4 is arranged between the adjacent buffer pieces 4, when the buffer pieces 4 are deformed under force, the forced force is transferred to the supporting block 7 to unload force, and finally the forced force is transferred to the buffer layer 6, so that the cable 5 is prevented from being excessively extruded, deformed and damaged; the wear-resistant layer 2 is sleeved on the outer side of the buffer piece 4, the reason for arranging the wear-resistant layer 2 is to avoid excessive wear of the buffer piece 4 at the contact place of the wear-resistant layer 2, and a filler 8 is arranged between the wear-resistant layer 2 and the abutting block 7, and the abutting block 7 is prevented from shifting or moving by the filler 8 abutting against the abutting block 7; the protective jacket 1 is tightly attached to the wear-resistant layer 2, an insulating layer 101 is arranged between the wear-resistant layer 2 and the protective jacket 1, the protective jacket is made of PVC material, plays a better role in protecting cables, has the advantages of being waterproof, good in stability and the like, and the insulating layer 101 is made of polyethylene material, so that the protection performance is improved.
It should be further noted that, both ends of the abutment 7 are provided with inclined surfaces contacting the buffer layer 6 and the buffer member 4, and the middle of the abutment 7 is provided with a fixing piece 701 for preventing the abutment 7 from being offset, and the fixing piece 701 is located between the two buffer layers 6.
It should be further noted that the middle portion of the filler layer 3 is provided with a reinforcing core 9, and the reinforcing core 9 improves the bending resistance of the cable 5.
It should be further noted that the buffer layer 6 may be made of plastic, and the buffer layer 6 plays a role of further buffering.
The filling layer 3 is made of an aramid rope, and has the advantages of high temperature resistance, acid and alkali resistance, light weight and the like.
It should be further noted that, the section of the buffer member 4 is arc-shaped, and the two ends of the buffer member 4 are propped against by the propping block 7 to increase the arc-shaped stress condition.
The working principle of the utility model is as follows:
when the cable 5 is used, the buffer piece 4 is arranged in the upper part of the cable 5, the buffer piece 4 is an arc-shaped elastic rubber plate, the buffer piece 4 is matched with the abutting block 7, the abutting block 7 is used for unloading force, and meanwhile, when the two ends of the buffer piece 4 abut against the abutting block 7, the buffer piece 4 can be prevented from deforming when the cable 5 encounters large external force impact, the two ends of the buffer piece 4 are prevented from being excessively worn with the filling layer 3 or the insulating layer 101 in the cable 5, particularly when repeatedly extruded, the damage to the inside of the cable is avoided, the service life of the cable is reduced, and meanwhile, the buffer layer is also arranged in the cable, and the buffer layer is arranged to prevent the low-cost cable from being excessively extruded and damaged when being impacted by the large external force.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model 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 described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. The waterproof buried photovoltaic cable is characterized by comprising a cable core (501), a first coating layer (502), a second coating layer (503) and a third coating layer (504), wherein the first coating layer (502), the second coating layer (503) and the third coating layer (504) are sequentially arranged from inside to outside, the first coating layer (502) is made of a polyvinyl chloride low-smoke halogen-free material, the second coating layer (503) is made of a low-smoke halogen-free irradiation crosslinking material, and the third coating layer (504) is made of an irradiation crosslinking polyethylene insulating material;
the packing device comprises a packing layer (3), wherein a plurality of buffer layers (6) are arranged on the peripheral wall of the packing layer (3), and a containing groove with an outward opening is formed in one surface, far away from the packing layer (3), of the buffer layers (6); the cable is arranged in the accommodating groove;
the buffer piece (4) is covered on the opening of the accommodating groove; and a propping block (7) propping against the buffer piece (4) is also arranged between the adjacent buffer pieces (4);
the wear-resistant layer (2) is sleeved on the outer side of the buffer piece (4), and a filler (8) is arranged between the wear-resistant layer (2) and the abutting block (7);
the protective coat (1) is tightly attached to the wear-resistant layer (2).
2. The waterproof buried photovoltaic cable according to claim 1, characterized in that both ends of the abutting block (7) are provided with inclined surfaces contacting the buffer layer (6) and the buffer member (4), and the middle part of the abutting block (7) is provided with a fixing sheet (701), and the fixing sheet (701) is located between the two buffer layers (6).
3. A waterproof buried photovoltaic cable according to claim 1, characterized in that the middle part of the filling layer (3) is provided with a reinforcing core (9).
4. The waterproof buried photovoltaic cable according to claim 1, characterized in that the buffer layer (6) is made of plastic material.
5. A waterproof buried photovoltaic cable according to claim 1, characterized in that the filler layer (3) is an aramid rope.
6. A waterproof buried photovoltaic cable according to claim 1, characterized in that the buffer (4) is arc-shaped in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321677365.9U CN220420293U (en) | 2023-06-29 | 2023-06-29 | Waterproof buried photovoltaic cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321677365.9U CN220420293U (en) | 2023-06-29 | 2023-06-29 | Waterproof buried photovoltaic cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220420293U true CN220420293U (en) | 2024-01-30 |
Family
ID=89649642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321677365.9U Active CN220420293U (en) | 2023-06-29 | 2023-06-29 | Waterproof buried photovoltaic cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220420293U (en) |
-
2023
- 2023-06-29 CN CN202321677365.9U patent/CN220420293U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |