CN220065249U

CN220065249U - Water-blocking dampproof power cable

Info

Publication number: CN220065249U
Application number: CN202321696017.6U
Authority: CN
Inventors: 王剑英
Original assignee: Jiangsu Dadi Cable Co ltd
Current assignee: Jiangsu Dadi Cable Co ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-11-21
Anticipated expiration: 2033-06-30

Abstract

The utility model discloses a water-blocking and moistureproof power cable, which comprises a guide core, wire cores, a water-blocking layer, an outer insulating sleeve and a dry filler cavity, wherein the water-blocking layer is arranged on the inner side of the outer insulating sleeve, a wrapping belt is arranged on the inner side of the water-blocking layer, a plurality of wire cores are arranged on an inner annular array of the wrapping belt, and a central reinforcing rib is arranged at the central position of each of the plurality of wire cores. The waterproof layer is arranged on the inner side of the outer insulating sleeve, and can be used for preventing water from the outer insulating sleeve, so that the waterproof and water-resistant capacity of the whole cable is improved; the waterproof layer and the belting are connected through the parting bead, can buffer protection to waterproof layer and belting through the parting bead, be equipped with dry filler chamber between parting bead, waterproof layer and belting, can pack active alumina through dry filler chamber, make it can improve the dampproofing performance of cable, and the inboard cladding of belting has the filler layer, can pack fire-retardant filler through it.

Description

Water-blocking dampproof power cable

Technical Field

The utility model relates to the field of aluminum power cables, in particular to a water-blocking and moisture-proof power cable.

Background

The cable is an electric energy or signal transmission device, and is usually composed of several wires or groups of wires, and the cable is a power cable, a control cable, a compensation cable, a shielding cable, a high-temperature cable, a computer cable, a signal cable, a coaxial cable, a fire-resistant cable, a marine cable, a mining cable, an aluminum alloy cable and the like. They are composed of single strand or multi strand wires and insulating layer for connecting circuits, electric appliances, etc.;

for example, patent publication number CN214203278U (water blocking cable): comprising the following steps: two wires, a first insulating layer, a water blocking belt and a sheath; the first insulating layer surrounds the wires, the wires are twisted, the water blocking tape longitudinally surrounds the wires and the first insulating layer and is partially contacted with the first insulating layer, and the protective ring surrounds the water blocking tape; the water-blocking tape comprises non-woven fabrics and hydrogel, and moisture entering the water-blocking cable is absorbed by the hydrogel. According to the utility model, the water blocking tape is arranged on the outer side of the lead, the hydrogel is arranged in the water blocking tape, and the water entering the cable is absorbed by the hydrogel to expand to form the water blocking dam, so that the water is locked, the longitudinal diffusion of the water is avoided, the waterproof performance and the electrical performance of the cable are improved, the dielectric breakdown is avoided, and the service life of the cable is prolonged;

therefore, the water blocking capability of the power cable body at the current stage is insufficient, and the cable after water blocking cannot be internally dried, so that the moisture resistance of the cable is insufficient, the protection function of the cable is insufficient, and the special protection capability of the cable cannot be changed.

Disclosure of Invention

The utility model aims to provide a water-blocking and moistureproof power cable, which solves the problems that the water-blocking capacity of a power cable body provided in the background art is insufficient, and the water-blocking cable cannot be internally dried, so that the moistureproof performance of the water-blocking cable is insufficient.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a dampproofing power cable blocks water, includes conductor, sinle silk, water-blocking layer, outer insulating cover and dry filler chamber, its characterized in that: the inner side of the outer insulating sleeve is provided with a waterproof layer, the inner side of the waterproof layer is provided with a wrapping belt, an inner annular array of the wrapping belt is provided with a plurality of wire cores, the center positions of the wire cores are provided with center reinforcing ribs, and each wire core comprises a plurality of conductors and an insulating layer wrapping the plurality of conductors.

In a further embodiment, a spacer is arranged between the waterproof layer and the wrapping belt, and the spacer is connected with the waterproof layer and the wrapping belt.

In a further embodiment, a plurality of dry filler cavities are arranged among the waterproof layer, the wrapping tape and the parting strips, and activated alumina is filled in the dry filler cavities.

In a further embodiment, the conductor is a copper wire and the insulating layer is a polyolefin material.

In a further embodiment, a filler layer is arranged between the wire core and the wrapping tape, and the filler layer is filled with a flame-retardant filler.

In a further embodiment, the outer insulating sleeve is connected with the waterproof layer through glue solution adhesion, and the parting strips are made of silica gel.

Compared with the prior art, the utility model has the beneficial effects that:

1. the waterproof layer is arranged on the inner side of the outer insulating sleeve, the waterproof protection can be carried out on the outer insulating sleeve through the waterproof layer, the waterproof and waterproof capacity of the whole cable is improved, and the waterproof layer is made of crosslinked polyethylene.

2. The waterproof layer and the belting are connected through the parting bead, the waterproof layer and the belting can be buffered and protected through the parting bead, a dry filler cavity is arranged among the parting bead, the waterproof layer and the belting, active alumina can be filled in the dry filler cavity, so that the moisture resistance of a cable can be improved, the filler layer is coated on the inner side of the belting, the filler can be flame-retardant through the filler layer, the flame-retardant function of the designed cable is stronger, and the function of the cable can be adjusted according to the function of changing the filler.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the present utility model;

FIG. 3 is a cross-sectional view of the water barrier of the present utility model;

fig. 4 is a schematic structural view of the portion a of the present utility model.

In the figure: 1. a conductor; 2. an insulating layer; 3. a wire core; 4. a parting bead; 5. a belting; 6. a water blocking layer; 7. an outer insulating sleeve; 8. a filler layer; 9. drying the filling cavity; 10. and a central reinforcing rib.

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.

Referring to fig. 1-4, an embodiment of the present utility model is provided: including conductor 1, sinle silk 3, water-blocking layer 6, outer insulating cover 7 and dry filler chamber 9, the inboard of outer insulating cover 7 is equipped with water-blocking layer 6, and the inboard of water-blocking layer 6 is equipped with band 5, and band 5's inboard annular array has many sinle silks 3, and many sinle silks 3 central point put and have central strengthening rib 10, and sinle silk 3 includes many conductors 1 and winds the insulating layer 2 of packing outside many conductors 1.

The outer insulating sleeve 7 is used for insulating and protecting the outermost layer of the cable, the dry filler cavity 9 is used for conveniently adding activated alumina, so that the cable has strong moisture-proof capacity, and the wrapping tape 5 is used for protecting the guide core 2.

Further, a division bar 4 is arranged between the waterproof layer 6 and the belting 5, the division bar 4 is connected with the waterproof layer 6 and the belting 5, and the division bar 4 is used for isolating the waterproof layer 6 from the belting 5.

Further, a plurality of dry filler cavities 9 are arranged among the water-resistant layer 6, the wrapping tape 5 and the parting strips 4, activated alumina is filled in the dry filler cavities 9, and filler addition is facilitated through the plurality of dry filler cavities 9.

Further, the conductor 1 is a copper wire, and the insulating layer 2 is made of polyolefin.

Further, a filler layer 8 is arranged between the wire core 3 and the wrapping tape 5, a flame-retardant filler is filled in the filler layer 8, and a flame-retardant fuel can be filled through the filler layer 8.

Furthermore, the outer insulating sleeve 7 is connected with the waterproof layer 6 through glue solution adhesion, and the parting bead 4 is made of silica gel, so that the parting bead 4 with the design can separate and can improve the buffering pressure resistance of the cable.

Working principle: during the use, protect the outside of water-blocking layer 6 through outer insulating cover 7, make the cable have stronger protection ability that blocks water through water-blocking layer 6, can block the protection to water-blocking layer 6 through parting bead 4, fill active alumina through dry filler chamber 9, make it can improve the dry dampproofing effect of cable, be used for filling the fuel that blocks through filler layer 8, make it can improve the fire-retardant protection ability of cable.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a dampproofing power cable blocks water, includes conductor (1), sinle silk (3), water-blocking layer (6), outer insulating boot (7) and dry filler chamber (9), its characterized in that: the inside of outer insulating cover (7) is equipped with water-blocking layer (6), the inboard of water-blocking layer (6) is equipped with band (5), the inboard annular array of band (5) has many sinle silk (3), many there is central strengthening rib (10) in sinle silk (3) central point put, sinle silk (3) include many conductors (1) and around wrapping insulating layer (2) outside many conductors (1).

2. A water-resistant moisture-resistant power cable according to claim 1 and wherein: a parting bead (4) is arranged between the waterproof layer (6) and the belting (5), and the parting bead (4) is connected with the waterproof layer (6) and the belting (5).

3. A water-resistant moisture-resistant power cable according to claim 2 and wherein: a plurality of dry filling cavities (9) are arranged among the water-blocking layer (6), the wrapping belt (5) and the parting strips (4), and activated alumina is filled in the dry filling cavities (9).

4. A water-resistant moisture-resistant power cable according to claim 1 and wherein: the conductor (1) is a copper wire, and the insulating layer (2) is made of polyolefin.

5. A water-resistant moisture-resistant power cable according to claim 1 and wherein: a filler layer (8) is arranged between the wire core (3) and the wrapping tape (5), and a flame-retardant filler is filled in the filler layer (8).

6. A water-resistant moisture-resistant power cable according to claim 2 and wherein: the outer insulating sleeve (7) is connected with the waterproof layer (6) through glue solution adhesion, and the parting bead (4) is made of silica gel.