CN215496091U - High-load insulation overhead cable - Google Patents

Abstract

The utility model discloses a high-load insulated overhead cable which comprises a copper core layer, a first aluminum core layer, a second aluminum core layer, an absorption assembly and a moisture-proof assembly, wherein the copper core layer is correspondingly twisted into a cylindrical shape, the first aluminum core layer is correspondingly twisted on the outer surface of the copper core layer, the second aluminum core layer is correspondingly twisted on the outer surface of the first aluminum core layer, and the absorption assembly is sleeved outside the second aluminum core layer in a matching manner. According to the utility model, the elastic silica gel layer and the polystyrene resin layer can absorb expansion with heat and contraction with cold inside the cable, so that the good use state of the cable is ensured, the absorption strength of the elastic silica gel layer is enhanced by uniformly distributing a plurality of groups of cavities in the elastic silica gel layer, external moisture can be completely blocked under the matching of the moisture-proof assembly, the corona condition caused by excessive moisture inside the cable is avoided, and the drying degree of the interiors of the first moisture-proof layer, the second moisture-proof layer and the third moisture-proof layer is ensured by embedding the heating sheet in the second moisture-proof layer.

Description

High-load insulation overhead cable

Technical Field

The utility model relates to the related technical field of overhead cables, in particular to a high-load insulated overhead cable.

Background

The overhead cable is an overhead conductor with an insulating layer and a protective sheath, is a special cable manufactured by a production process similar to a crosslinked cable, and is a new power transmission mode between the overhead conductor and an underground cable. The aerial cable is a single core, and can be divided into a duralumin wire structure, an aluminum alloy wire structure, a steel core or aluminum alloy core supporting structure, a self-supporting three-core threaded structure (the wire core can be duralumin or duralumin wire) and the like according to different structures.

The prior art has the following defects: when the existing overhead cable operates, the whole protection effect is not good, the cable cannot absorb external impact force and extrusion force, the expansion and contraction amount inside the cable cannot be absorbed, the existing overhead cable is poor in moisture-proof effect, external moisture cannot be separated, the automatic auxiliary drying function is not achieved, and the good operation condition of the cable cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a high-load insulated overhead cable to solve the problems set forth in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an insulating aerial [ insulated ] cable of high load, includes copper sandwich layer, an aluminium sandwich layer, No. two aluminium sandwich layers, absorbs subassembly and dampproofing subassembly, the copper sandwich layer corresponds to strand into cylindrically, No. one aluminium sandwich layer matches the transposition at copper sandwich layer surface, No. two aluminium sandwich layers correspond the transposition at an aluminium sandwich layer surface, it matches the cover and establishes in No. two aluminium sandwich layers outsidely to absorb the subassembly, dampproofing subassembly corresponds the cover and establishes in absorbing the subassembly outsidely.

As a further preferred of this technical scheme, copper sandwich layer, an aluminium sandwich layer, No. two aluminium sandwich layers correspond the setting, just copper sandwich layer, an aluminium sandwich layer, No. two aluminium sandwich layers superpose the cover in proper order and establish the laminating installation.

As a further preferred of this technical scheme, it includes elasticity silica gel layer, multiunit cavity and polystyrene resin layer to absorb the subassembly, elasticity silica gel layer establishes No. two aluminium core layer surfaces through the viscose cover, the polystyrene resin layer establishes at elasticity silica gel layer surface, multiunit through the viscose cover the even embedded in elasticity silica gel layer of cavity.

As a further preferred aspect of the present invention, the cross section of the cavity is circular, and helium gas is filled in the cavity.

As further preferred of this technical scheme, dampproofing subassembly includes dampproofing course, No. two dampproofing courses, No. three dampproofing courses and heating plate, and No. one dampproofing course passes through the viscose cover to be established at polystyrene resin layer surface, No. two dampproofing courses establish No. one dampproofing course surface through the viscose cover, No. three dampproofing courses establish No. two dampproofing course surfaces through the viscose cover, the heating plate corresponds to inlay and establishes in No. two dampproofing courses, just the heating plate passes through the wire and is connected with external power supply.

As a further preferred of this technical scheme, the specific material of a dampproof course is natural bamboo fibre, the specific material of No. two dampproof courses is mineral glue, the specific material of No. three dampproof courses is nanofiber layer.

As a further preferred option of the technical scheme, an outer sheath is sleeved on the outer surface of the third moisture-proof layer, and the outer sheath is made of a polyvinyl chloride insulating material.

The utility model provides a high-load insulated overhead cable, which has the following beneficial effects:

(1) according to the utility model, the absorption assembly is arranged, so that external extrusion force can be elastically absorbed, the service life of the cable is prolonged, the defect that the cable is damaged due to external extrusion force is avoided, meanwhile, the elastic silica gel layer and the polystyrene resin layer can absorb thermal expansion and cold contraction in the cable, the good use state of the cable is ensured, the absorption strength of the elastic silica gel layer is enhanced and the absorption range of the elastic silica gel layer is enlarged by uniformly distributing a plurality of groups of cavities in the elastic silica gel layer.

(2) According to the utility model, the moisture-proof component is arranged, the first moisture-proof layer can be used for effectively blocking external moisture, the second moisture-proof layer and the third moisture-proof layer can be used for comprehensively blocking the external moisture under the common assistance of the second moisture-proof layer and the third moisture-proof layer, the corona condition caused by excessive moisture in the cable is avoided, the first moisture-proof layer, the second moisture-proof layer and the third moisture-proof layer can be subjected to auxiliary heating by embedding the heating sheet in the second moisture-proof layer, and the drying degree of the interiors of the first moisture-proof layer, the second moisture-proof layer and the third moisture-proof layer is ensured.

Drawings

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

FIG. 2 is a schematic view of an absorbent assembly of the present invention;

FIG. 3 is a schematic view of the moisture barrier assembly of the present invention;

FIG. 4 is a schematic view of the connection of the second moisture barrier layer of the present invention to the heat patch;

fig. 5 is an enlarged view of the utility model at a in fig. 1.

In the figure: 1. a copper core layer; 2. a first aluminum core layer; 3. a second aluminum core layer; 4. an absorbent assembly; 5. a moisture barrier component; 6. an elastic silica gel layer; 7. a cavity; 8. a polystyrene resin layer; 9. a first moisture barrier; 10. a second moisture barrier; 11. a third moisture barrier; 12. a heating plate; 13. an outer sheath.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 5, the present invention provides the technical solutions: the utility model provides an insulating aerial [ insulated ] cable of high load, includes copper sandwich layer 1, aluminium sandwich layer 2, No. two aluminium sandwich layers 3, absorbs subassembly 4 and dampproofing subassembly 5, copper sandwich layer 1 corresponds to strand into cylindrically, No. one aluminium sandwich layer 2 matches the transposition at 1 surface of copper sandwich layer, No. two aluminium sandwich layer 3 correspond the transposition at 2 surfaces of aluminium sandwich layer, it establishes in No. two aluminium sandwich layers 3 outsides to absorb subassembly 4 matching cover, dampproofing subassembly 5 corresponds the cover and establishes outside absorbing subassembly 4.

In this embodiment, specifically: copper sandwich layer 1, aluminium sandwich layer 2, No. two aluminium sandwich layer 3 correspond the setting, just copper sandwich layer 1, aluminium sandwich layer 2, No. two aluminium sandwich layer 3 superpose the cover in proper order and establish the laminating installation.

In this embodiment, specifically: absorb subassembly 4 including elastic silica gel layer 6, multiunit cavity 7 and polystyrene resin layer 8, elastic silica gel layer 6 is established at No. two aluminium core layer 3 surfaces through the viscose cover, polystyrene resin layer 8 is established at elastic silica gel layer 6 surfaces through the viscose cover, the multiunit cavity 7 evenly embeds in elastic silica gel layer 6, can carry out elastic absorption to external extrusion force, has prolonged the life of cable, avoids receiving external force extrusion to take place the not enough of damage, can absorb the inside thermal expansion shrinkage of cable at elastic silica gel layer 6, polystyrene resin layer 8 simultaneously, has ensured the good user state of cable, has strengthened elastic silica gel layer 6's absorbed strength through evenly distributed has multiunit cavity 7 in elastic silica gel layer 6.

In this embodiment, specifically: the cross section of the cavity 7 is circular, and helium is filled in the cavity 7, so that the overall absorption precision is improved.

In this embodiment, specifically: dampproof component 5 includes dampproof course 9, No. two dampproof courses 10, No. three dampproof courses 11 and heating plate 12, and No. one dampproof course 9 establishes at polystyrene resin layer 8 surface through the viscose cover, No. two dampproof courses 10 establish at No. one dampproof course 9 surface through the viscose cover, No. three dampproof course 11 establishes at No. two dampproof course 10 surface through the viscose cover, heating plate 12 corresponds to inlay and establishes in No. two dampproof courses 10, just heating plate 12 is connected with external power supply through the wire, utilizes No. one dampproof course 9 can effectually carry out the separation to external moisture, and under the common assistance of No. two dampproof courses 10, No. three dampproof courses 11, can be comprehensive carry out the separation to external moisture, avoids the inside situation that leads to the corona because moisture is too big, through embedding No. two dampproof courses 10 and being equipped with heating plate 12, can be to dampproof course 9, No. two dampproof courses 10, No. three dampproof course 11 carries out the auxiliary heating, has ensured the inside degree of drying of a dampproof course 9, No. two dampproof courses 10, No. three dampproof course 11.

In this embodiment, specifically: a concrete material of dampproof course 9 is natural bamboo fibre, No. two concrete materials of dampproof course 10 are mineral glue, No. three concrete materials of dampproof course 11 are the nanofiber layer, utilize dampproof course 9 can effectually carry out the separation to external moisture, and under No. two dampproof courses 10, No. three common assistance of dampproof course 11, can be comprehensive carry out the separation to external moisture, avoid the inside situation because moisture is too big to lead to corona of cable.

In this embodiment, specifically: an outer sheath 13 is sleeved on the outer surface of the third moisture-proof layer 11, and the outer sheath 13 is made of polyvinyl chloride insulating materials and can protect the cable comprehensively from the outside.

The working principle is that when in use, the absorption component 4 is arranged, the elastic silica gel layer 6 can be used for absorbing external extrusion force, meanwhile, the external extrusion force can be elastically absorbed under the assistance of the polystyrene resin layer 8, the service life of the cable is prolonged, the defect that the cable is damaged under the external extrusion force is avoided, meanwhile, the elastic silica gel layer 6 and the polystyrene resin layer 8 can absorb the thermal expansion and cold contraction in the cable, the good use state of the cable is ensured, the absorption strength of the elastic silica gel layer 6 is enhanced by uniformly distributing a plurality of groups of cavities 7 in the elastic silica gel layer 6, the absorption range of the elastic silica gel layer 6 is enlarged, the impact force of the external extrusion force can be comprehensively absorbed, the moisture-proof component 5 is arranged, the moisture-proof layer 9 can effectively block external moisture, and under the common assistance of the moisture-proof layer II and the moisture-proof layer III 11, can be comprehensive carry out the separation to external moisture, the inside running state of cable has been strengthened, avoid the inside situation because the too big corona that leads to of moisture of cable, through embedded heating plate 12 that is equipped with at dampproof course 10 No. two, can be to dampproof course 9, No. two dampproof courses 10, No. three dampproof courses 11 carry out the auxiliary heating, realized the emission to dampproof course 9 No. two dampproof courses 10, the inside moisture of No. three dampproof courses 11, dampproof course 9 has been ensured, No. two dampproof courses 10, the inside drying degree of No. three dampproof courses 11.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides an insulating aerial [ insulated ] cable of high load, its characterized in that, includes copper core layer (1), aluminium core layer (2), No. two aluminium core layers (3), absorption subassembly (4) and dampproofing subassembly (5), copper core layer (1) corresponds the stranding and becomes cylindrically, No. one aluminium core layer (2) match the stranding and wind at copper core layer (1) surface, No. two aluminium core layers (3) correspond the stranding and wind at aluminium core layer (2) surface, absorption subassembly (4) match the cover and establish No. two aluminium core layers (3) outsidely, dampproofing subassembly (5) correspond the cover and establish absorption subassembly (4) outsidely.

2. A high load insulated overhead cable according to claim 1, characterized in that: copper sandwich layer (1), aluminium sandwich layer (2), No. two aluminium sandwich layer (3) correspond the setting, just copper sandwich layer (1), aluminium sandwich layer (2), No. two aluminium sandwich layer (3) superpose the cover in proper order and establish the laminating installation.

3. A high load insulated overhead cable according to claim 1, characterized in that: the absorption assembly (4) comprises an elastic silica gel layer (6), a plurality of groups of cavities (7) and a polystyrene resin layer (8), the elastic silica gel layer (6) is sleeved on the outer surface of the second aluminum core layer (3) through a viscose, the polystyrene resin layer (8) is sleeved on the outer surface of the elastic silica gel layer (6) through the viscose, and the cavities (7) are uniformly embedded in the elastic silica gel layer (6).

4. A high load insulated overhead cable according to claim 3, characterized in that: the cross section of the cavity (7) is circular, and helium is filled in the cavity (7).

5. A high load insulated overhead cable according to claim 1, characterized in that: dampproofing subassembly (5) includes dampproofing course (9), No. two dampproofing courses (10), No. three dampproofing courses (11) and heating plate (12), and the building is established at polystyrene resin layer (8) surface through the viscose cover in dampproofing course (9), No. two dampproofing courses (10) are established at dampproofing course (9) surface through the viscose cover, No. three dampproofing courses (11) are established at No. two dampproofing courses (10) surface through the viscose cover, heating plate (12) correspond to inlay and establish in No. two dampproofing courses (10), just heating plate (12) are connected with external power through the wire.

6. A high load insulated overhead cable according to claim 5, characterized in that: the concrete material of a dampproof course (9) is natural bamboo fibre, the concrete material of No. two dampproof courses (10) is mineral glue, the concrete material of No. three dampproof courses (11) is the nanofiber layer.

7. A high load insulated overhead cable according to claim 5, characterized in that: an outer sheath (13) is sleeved on the outer surface of the third moisture-proof layer (11), and the outer sheath (13) is made of a polyvinyl chloride insulating material.

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