CN214279668U

CN214279668U - Metal shielding power cable

Info

Publication number: CN214279668U
Application number: CN202120409988.2U
Authority: CN
Inventors: 胡梅
Original assignee: Baosheng Shandong Cable Co ltd
Current assignee: Baosheng Shandong Cable Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-09-24
Anticipated expiration: 2031-02-24

Abstract

The utility model relates to a metal shielding power cable, including the cable body, the cable body includes inner core and protective layer, the inner core includes sinle silk conductor and abrasionproof layer, be equipped with the filler between abrasionproof layer and the sinle silk conductor, the outside of sinle silk conductor is equipped with first insulating layer parcel, the protective layer includes the elastic layer, the metal shielding layer, fire-retardant layer and protective sheath, first insulating layer, the second insulating layer adopts cross-linking type low smoke and zero halogen fire-retardant polyethylene insulating material to make, first protective sheath and second protective sheath adopt the PVC material to make, the cable body just does not release harmful gas and smog when burning, smoke volume is few, the luminousness is high, extension product life, the security is high, the environmental protection is pollution-free, can be suitable for various specific occasion and lay, this product does not contain any halogen component, does not contain the environmental harmful substance, accord with union's European ROHS standard, the utility model discloses have stronger anti-electromagnetic interference, Lightning stroke resistance, balanced electrical property and improved power supply quality, and ensures the continuity of the shielding layer.

Description

Metal shielding power cable

Technical Field

The utility model relates to a power transmission field specifically is a metal shielded power cable.

Background

In various domestic construction projects, electric wires and cables for fixed wiring are widely used. The electric wire and the cable can be applied to important projects with environmental protection requirements, such as high-grade buildings, houses, buildings, halls, houses, subways, tunnels and the like, can be matched with environmental protection electronic equipment and household appliances for use, and relate to thousands of households. The electric wire and cable are mainly polyvinyl chloride insulated electric wires represented by IEC in the world at present, namely, the electric wire and cable are part of products contained in national standard GB5023-2008 and mechanical industry standard JB8734-1998, the insulating layer of the cable is mostly made of halogen-containing insulating materials, the electric wire and cable can spread and burn when exposed to fire, a large amount of smoke and highly corrosive hydrogen halide gas are generated, a 'secondary disaster' is formed, and once a fire disaster occurs in a building, the electric wire and cable can endanger life and seriously pollute the environment.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an anti-electromagnetic interference, the effectual metal shielded power cable of transmission.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a metal shielding power cable comprises a cable body, wherein the cable body comprises an inner core and a protective layer, the inner core comprises a core conductor and an anti-abrasion layer, filler is arranged between the anti-abrasion layer and the core conductor, the outer side of the core conductor is provided with a first insulating layer for wrapping, the protective layer comprises an elastic layer, a metal shielding layer, a flame-retardant layer and a protective sleeve, the elastic layer is wrapped on the outer side of the anti-abrasion layer, elastic particles are arranged in the elastic layer, the metal shielding layer is wrapped on the outer side of the elastic layer, the flame-retardant layer is wrapped on the outer side of the metal shielding layer, the protective sleeve is wrapped on the outer side of the flame-retardant layer, the protective sleeve comprises a first protective sleeve and a second protective sleeve, a second clamping block is arranged around the outer side of the first protective sleeve, the outer side of the second protective sleeve is provided with a third clamping block in a surrounding mode, and the inner side of the second protective sleeve is provided with a sliding groove corresponding to the second clamping block.

In order to improve the use effect, the utility model discloses the improvement has, the inboard is encircleed and is equipped with the draw-in groove on the elastic layer, the outside of abrasionproof layer is encircleed and is equipped with first fixture block, first fixture block and draw-in groove slip joint.

In order to improve the use stability of the core conductor, the core conductor is formed by twisting a plurality of round copper soft single wires together, and the surface of the core conductor is plated with tin.

In order to improve the insulating property, a second insulating layer is arranged between the metal shielding layer and the flame-retardant layer, and the materials of the first insulating layer and the second insulating layer are cross-linking type low-smoke halogen-free flame-retardant polyethylene insulating materials.

In order to improve the corrosion resistance of the first protective sleeve and the second protective sleeve, the first protective sleeve and the second protective sleeve are made of PVC materials.

In order to improve the protective performance of the metal shielding layer, the metal shielding layer is a copper wire and copper strip combined shielding consisting of a layer of soft copper wire and a copper strip wrapped outside the soft copper wire.

In order to improve the performance of the elastic particles, the elastic particles are made of rubber, and the outer side of the elastic particles is wrapped with a cross-linking type low-smoke halogen-free flame-retardant polyethylene insulating material.

(III) advantageous effects

Compared with the prior art, the utility model provides a metal shielded power cable possesses following beneficial effect:

this metal shielded power cable's first insulating layer, second insulating layer adopt cross-linking type low smoke and zero halogen fire-retardant polyethylene insulating material to make, first protective sheath and second protective sheath adopt the PVC material to make, the cable body just does not release harmful gas and smog when burning, and the smoke volume is few, and the luminousness is high, extension product life, and the security is high, the environmental protection is pollution-free, can be suitable for various specific occasions to lay, and this product does not contain any halogen composition, does not contain the environmental harmful substance, accords with EU ROHS standard, the utility model discloses a shielding structure electromagnetic induction can be resisted, ground connection is good, reduces the breakdown or damage that the powerful thunder and lightning electromagnetic effect voltage leads to of inductance avoidance, prevents that the induced electromotive force is too big, has stronger anti-electromagnetic interference, anti thunderbolt and balanced electric property, improves the characteristic of power supply quality, has guaranteed the continuity of shielding layer.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic view of the structure of the inner core of the present invention;

fig. 3 is a side view of the present invention.

In the figure: 1. a core conductor; 2. a first insulating layer; 3. a filler; 4. an anti-wear layer; 5. an elastic layer; 6. a metal shielding layer; 7. a flame retardant layer; 8. a first protective sheath; 9. a second protective cover; 10. a cable body; 11. a first clamping block; 12. a second fixture block; 13. a third fixture block;

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention relates to a metal-shielded power cable, which includes a cable body 10, wherein the cable body 10 includes an inner core and a protective layer, the inner core includes a core conductor 1 and an anti-wear layer 4, a filler 3 is disposed between the anti-wear layer 4 and the core conductor 1, the core conductor 1 is covered by a first insulating layer 2, the protective layer includes an elastic layer 5, a metal shielding layer 6, a flame retardant layer 7, and a protective sheath, the elastic layer 5 is covered on the outer side of the anti-wear layer 4, elastic particles are disposed in the elastic layer 5, the metal shielding layer 6 is covered on the outer side of the elastic layer 5, the flame retardant layer 7 is covered on the outer side of the metal shielding layer 6, the protective sheath is covered on the outer side of the flame retardant layer 7, the protective sheath includes a first protective sheath 8 and a second protective sheath 9, a second fixture block 12 is disposed around the outer side of the first protective sheath 8, the outer side of the second protective sleeve 9 is provided with a third clamping block 13 in a surrounding manner, and the inner side of the second protective sleeve is provided with a sliding groove corresponding to the second clamping block 12.

In order to improve the use effect, the utility model discloses the improvement has, the inboard is encircleed and is equipped with the draw-in groove on the elastic layer 5, the outside of abrasionproof layer 4 is encircleed and is equipped with first fixture block 11, first fixture block 11 and draw-in groove slip joint, the convenience is changed the outer protective layer of inner core.

In order to improve the stability of the use of the core conductor 1, the core conductor 1 is a plurality of round copper flexible single wires twisted together, and the surface is tinned, so that the stability of the cable is improved, and the electromagnetic interference is prevented.

In order to improve the insulating property, a second insulating layer is arranged between the metal shielding layer 6 and the flame-retardant layer 7, and the materials of the first insulating layer 2 and the second insulating layer are cross-linking type low-smoke halogen-free flame-retardant polyethylene insulating materials.

In order to improve the corrosion resistance of the first protective sheath 8 and the second protective sheath 9, the first protective sheath 8 and the second protective sheath 9 are made of PVC.

In order to improve the protective performance of the metal shielding layer 6, the metal shielding layer 6 is a copper wire and copper strip combined shield consisting of a layer of soft copper wire and a copper strip wrapped outside the soft copper wire.

In conclusion, when the metal shielding power cable is used, the first insulating layer 2 and the second insulating layer are made of the cross-linking type low-smoke halogen-free flame-retardant polyethylene insulating material, and the polyethylene linear molecular structure is converted into the vertical reticular molecular structure through cross-linking special treatment, so that the electrical performance, the physical performance, the mechanical performance and other special performances of the product are greatly improved, the cross-linking type low-smoke halogen-free polyolefin material is high-temperature resistant and has the characteristics of difficult spreading and no generation of hydrogen halide gas, so that harmful smoke can not be released during the combustion of the cable, secondary disasters cannot be caused, the thicknesses of the first insulating layer 2 and the second insulating layer can be properly reduced due to the use of the cross-linking type low-smoke halogen-free polyolefin material, the outer diameter of a finished product is reduced, the weight is lightened, the mechanical strength of the surface layer of the wire cable is improved, the pipe penetration capacity is improved, and the transportation cost is reduced, the cable is easy to construct and simple and convenient to install, the first protective sleeve 8 and the second protective sleeve 9 adopt PVC materials to increase the corrosion resistance of the cable body 10, thereby prolonging the service life of the utility model, the metal shielding layer 6 is a copper wire and copper strip combined shielding layer consisting of a layer of soft copper wire and a copper strip wrapped outside the soft copper wire, the soft copper wire is a naked round soft copper wire or a round copper single wire with tin coated on the surface, the metal shielding layer 6 adopts a copper wire and copper strip combined shielding structure, the copper wire and copper strip combined shielding layer can play a role in inhibiting electromagnetic waves from emitting outwards and can also be used as a channel of short-circuit current, the protection function of a neutral wire core can be played, the flame retardant effect of the utility model is increased through the flame retardant layer 7, the wire core conductor 1 is tightly wrapped through the anti-wear layer 4 and the filler 3, the abrasion of the wire core conductor 1 is prevented from being caused during the transportation or installation, the elasticity of the cable body 10 is increased through the elastic layer 5 and the elastic particles, prevent that the cable from easily taking place to buckle and damaging, and increase the cushioning nature when colliding with, prevent that sinle silk conductor 1 from suffering the extrusion and damaging, through first protective sheath 8 and second protective sheath 9, prevent that the cable from suffering damage flame-retardant layer 7 and metallic shield 6 when transport or installation, influence the result of use of cable, and then improve the protection effect to the cable, and through setting up second fixture block 12, third fixture block 13 and spout cooperation, conveniently change first protective sheath 8 and second protective sheath 9, and increase the protective sheath in the second protective sheath 9 outside, and then increase and use neotype protection effect.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The metal shielding power cable is characterized by comprising a cable body (10), wherein the cable body (10) comprises an inner core and a protective layer, the inner core comprises a core conductor (1) and an anti-abrasion layer (4), a filler (3) is arranged between the anti-abrasion layer (4) and the core conductor (1), the outer side of the core conductor (1) is provided with a first insulating layer (2) for wrapping, the protective layer comprises an elastic layer (5), a metal shielding layer (6), a flame-retardant layer (7) and a protective sleeve, the elastic layer (5) wraps the outer side of the anti-abrasion layer (4), elastic particles are arranged in the elastic layer (5), the metal shielding layer (6) wraps the outer side of the elastic layer (5), the flame-retardant layer (7) wraps the outer side of the metal shielding layer (6), and the protective sleeve wraps the outer side of the flame-retardant layer (7), the protective sheath includes first protective sheath (8) and second protective sheath (9), the outside of first protective sheath (8) is encircleed and is equipped with second fixture block (12), the outside of second protective sheath (9) is encircleed and is equipped with third fixture block (13), second protective sheath inboard is equipped with the spout and corresponds with second fixture block (12).

2. The metal shielding power cable as claimed in claim 1, wherein the elastic layer (5) is provided with a locking groove on the inner side, the wear-resistant layer (4) is provided with a first locking block (11) on the outer side, and the first locking block (11) is slidably locked with the locking groove.

3. A metal-shielded power cable according to claim 1, characterized in that the core conductor (1) is a plurality of round copper soft single wires twisted together and surface-plated with tin.

4. A metal-shielded power cable according to claim 1, characterized in that a second insulating layer is provided between the metal shielding layer (6) and the flame-retardant layer (7).

5. A metal shielded power cable according to claim 1 or 4, characterized in that the material of the first insulating layer (2) and the second insulating layer is cross-linked low smoke zero halogen flame retardant polyethylene insulating material.

6. A metal-shielded power cable according to claim 1, characterized in that the first protective sheath (8) and the second protective sheath (9) are made of PVC material.

7. A metal-shielded power cable according to claim 1, characterized in that the metal shield (6) is a copper wire and copper strip combined shield consisting of a layer of soft copper wire and copper strips wrapped around the soft copper wire.

8. The metal-shielded power cable according to claim 1, wherein the elastic particles are made of rubber, and the outer side of the elastic particles is wrapped with a cross-linked low-smoke halogen-free flame-retardant polyethylene insulating material.