CN214671917U - Power line - Google Patents

Abstract

The utility model relates to a power cord, it is including insulating heart yearn and sheath, and the sheath parcel is provided with anti-sticking layer at insulating heart yearn periphery side between sheath and the insulating heart yearn, and anti-sticking layer parcel is at insulating heart yearn periphery side, and the setting on anti-sticking layer is kept apart sheath and insulating heart yearn, has avoided the sheath to mould plastics in the course of working and has fused with insulating heart yearn. This application has between sheath and the insulating heart yearn completely cut off effectual effect.

Description

Power line

Technical Field

The application relates to the field of electric wires and cables, in particular to a power line.

Background

The power cord is used for connecting the electrical appliance into a power supply and transmitting current to the electrical appliance.

The general power line comprises one or more insulated core wires and a sheath which wraps the insulated core wires into a whole, wherein the insulated core wires comprise conductors and insulating layers wrapped outside the conductors, and the conductors mostly adopt copper wires as carriers of current and voltage; the insulating layer is formed by injection molding of soft resin materials, such as PVC (polyvinyl chloride) plastics, TPU (thermoplastic polyurethane) plastics and the like, so that copper wires and air are isolated, and the electric leakage phenomenon is avoided; the sheath is also made of soft resin materials such as PVC plastics and TPU plastics by injection molding, and the insulating layer is protected, so that the insulating layer cannot be in contact with water, air or other objects, the insulating layer is prevented from being damped, and the insulating layer is prevented from being damaged mechanically.

In view of the above-mentioned related art, the inventor believes that since the insulating layer and the sheath are both formed by injection molding of resin materials, the sheath layer is easily fused with the insulating layer when the sheath is formed on the surface of the insulating layer, thereby affecting the use of the power line.

SUMMERY OF THE UTILITY MODEL

To avoid the fusion of the insulating layer and the sheath, the present application provides a power cord.

The application provides a power cord adopts following technical scheme:

the utility model provides a power cord, includes insulating heart yearn and sheath, the sheath parcel is provided with anti-sticking layer at insulating heart yearn periphery side between sheath and the insulating heart yearn, anti-sticking layer parcel is at insulating heart yearn periphery side.

By adopting the technical scheme, the sheath and the insulating core wire are isolated by the arrangement of the anti-sticking layer, so that the sheath is prevented from being fused with the insulating core wire in the injection molding processing process of the sheath, and the respective effects of the sheath and the insulating core wire are ensured; and because insulating heart yearn and sheath do not fuse and have kept apart through the antisticking layer, be favorable to going on of follow-up power cord wire stripping work.

Optionally, be provided with the dull polish layer between insulating heart yearn and the antiseized layer, the dull polish layer sets up at insulating heart yearn surface.

Through adopting above-mentioned technical scheme, the setting on dull polish layer has strengthened the adhesive force of anti-sticking layer on insulating heart yearn surface, makes the more even dispersion of anti-sticking layer to the surface of insulating heart yearn moreover, and anti-sticking is effectual.

Optionally, the frosting layer is uniformly arranged along the outer surface of the insulating core wire in a spiral shape.

Through adopting above-mentioned technical scheme, the heliciform sets up the convenience and goes out the dull polish layer at insulating heart yearn surface machining, can transport insulating heart yearn and process simultaneously, practices thrift process time.

Optionally, a lubricating layer is arranged between the anti-sticking layer and the sheath.

Through adopting above-mentioned technical scheme, the lubricating layer can reduce the power cord friction between sheath and the insulating layer when crooked, plays extension power cord life's effect, and the operation when convenient later stage is peeled off the sheath in setting up of lubricating layer moreover.

Optionally, a reinforcement layer is arranged in the sheath, and the reinforcement layer is arranged in an annular structure.

Through adopting above-mentioned technical scheme, the enhancement layer can improve the tensile strength of power cord, prolongs the life of power cord.

Optionally, the reinforcing layer is arranged in the sheath in a mesh annular mesh structure.

Through adopting above-mentioned technical scheme, network structure can combine compactly with the sheath, guarantees the structural strength of sheath.

Optionally, the cable further comprises a filler wire, and the filler wire and the insulating core wire are both located in the sheath.

Through adopting above-mentioned technical scheme, the filler wire plays the effect of filling the clearance between sheath and the insulating heart yearn, takes place the winding phenomenon of the inside insulating heart yearn of sheath when avoiding the power cord crooked, has reduced the materials of sheath material simultaneously, and the sheath forming time is short, plays the effect of practicing thrift process time.

Optionally, the anti-sticking layer is provided as a talc powder layer.

By adopting the technical scheme, the main component of the talcum powder is the hydrous magnesium silicate, the talcum powder has the characteristics of lubricity, fire resistance, acid resistance, insulativity, high melting point, softness, good adsorbability and the like, the function of an anti-sticking agent is realized between two resins, the resin fusion of the sheath and the insulating layer is avoided, the lubricating effect can be realized between the sheath and the insulating layer, the friction force when the power line is bent is reduced, the service life of the power line is prolonged, and the power line can be conveniently stripped in the later period.

In summary, the present application includes at least one of the following beneficial technical effects:

the anti-sticking layer between the insulating core wire and the sheath can prevent the sheath from being fused with the insulating core wire in the injection molding process, so that the sheath and the insulating core wire can be used;

the lubricating layer is arranged, so that the lubricating effect between the sheath and the insulating core wire is realized, and the friction between the sheath and the insulating core wire in the bending process of the power line is reduced;

through setting up the antisticking layer into the talcum powder, can make full use of the characteristic of talcum powder for the lubricity is good, the antisticking is good between sheath and the insulating heart yearn.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

FIG. 2 is a cross-sectional view of an embodiment of the present application;

fig. 3 is a sectional view of 3 insulated wires in the embodiment of the present application.

Reference numerals: 1. an insulated core wire; 11. a conductor; 12. an insulating layer; 2. a sheath; 3. sanding layer; 4. an anti-sticking layer; 5. a lubricating layer; 6. filling the line; 7. an enhancement layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a power line, and with reference to fig. 1, the power line comprises a conductor 11, an insulating layer 12 and a sheath 2. The conductor 11 is a copper wire, a plurality of copper wires are arranged side by side or woven, and the insulating core wire 1 is formed by wrapping the copper wires through the insulating layer 12, so that electric leakage caused by contact between the copper wires and outside air is prevented; each power line can contain an insulating core wire 1 and a plurality of insulating core wires 1, the sheath 2 contains one or a plurality of core wires, the insulating core wires 1 are protected, the conductor 11 is isolated again, and the power line is prevented from being influenced by water, air or other objects.

Insulating layer 12 and sheath 2 all adopt soft resin material to mould plastics and form, like PVC plastics, TPU plastics etc. can completely cut off copper wire and external air, water or other mechanical contact, guarantee that the power cord can normally carry out electrically conductive work.

Referring to fig. 2, a frosted layer 3, an anti-sticking layer 4, and a lubricating layer 5 are sequentially provided between an insulated core wire 1 and a jacket 2.

Wherein, dull polish layer 3 sets up at 1 surface of insulating heart yearn, and dull polish layer 3 is the heliciform along the length direction of insulating heart yearn 1 and evenly arranges, then processes the surface of insulating heart yearn 1 when insulating 12 injection moulding after transportation insulating heart yearn 1 and makes the surface of insulating heart yearn 1 form coarse dull polish layer 3, and dull polish layer 3 is at 1 surperficial unevenness's dull polish face of insulating heart yearn promptly to improve anti-adhesion layer 4 at the adhesive force on 1 surface of insulating heart yearn.

The anti-sticking layer 4 and the lubricating layer 5 are both made of talcum powder. The anti-sticking layer 4 is composed of talcum powder attached to the surface of the frosted surface and even filled in the recess of the frosted surface, so that the surface of the insulated core wire 1 is isolated, and the sheath 2 is prevented from contacting and fusing with the insulated core wire 1 in the injection molding process.

The lubricating layer 5 is formed by adding a layer on the first layer of talcum powder, so that the lubricating property and the anti-adhesion property are good, the fusion of the insulating core wire 1 and the sheath 2 is further avoided, and the lubricating effect between the sheath 2 and the insulating core wire 1 is good due to the fact that the thickness of the talcum powder layer is increased, so that the friction between the sheath 2 and the insulating core wire 1 is reduced, and the phenomenon of breakage is not easy to occur; and the subsequent wire stripping work of the power line is convenient to be carried out.

Before the sheath 2 is injected, a reinforcing layer 7 is additionally arranged on the outer peripheral side of the insulated core wire 1, the reinforcing layer 7 is arranged in an annular net structure, the reinforcing layer 7 can be made of a glass fiber net, the insulated core wire 1 is wrapped by the reinforcing layer 7, and then the surface of the reinforcing layer 7 is injected and molded to form the sheath 2. In the forming process of the sheath 2, the resin can penetrate through the meshes on the reinforced layer 7 to wrap the insulated core wire 1, and the combination of the sheath 2 and the reinforced layer 7 is compact, so that the strength of the sheath 2 can be effectively enhanced, and the integral strength of the power line is enhanced.

Referring to fig. 3, when the number of the insulated core wires 1 exceeds 3, it is preferable to add a filling wire 6 in the sheath 2 to better fill the gap between the insulated core wires 1 and the sheath 2, and the filling wire 6 may be made of PP, PVC, TPU, or any plastic material capable of making a soft core wire. And can select different materials to make the filler wire 6 according to the effect such as waterproof, fire prevention fire-retardant to the power cord for the power cord has different effects.

And due to the arrangement of the filling line 6, the material consumption of the sheath 2 in the processing process is reduced, the injection molding and forming time of the sheath 2 is relatively reduced, and the processing time is saved.

The implementation principle of a power cord in the embodiment of the application is as follows: firstly, an insulating layer 12 is formed outside a copper wire through injection molding, a frosted layer 3 is processed on the surface of the insulating layer 12, the frosted layer 3 is wrapped with talcum powder to form an anti-sticking layer 4 and a lubricating layer 5, and the sheath 2 is formed through injection molding again.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A power cord, characterized by: including insulating heart yearn (1) and sheath (2), sheath (2) parcel is at insulating heart yearn (1) periphery side, be provided with between sheath (2) and insulating heart yearn (1) anti-sticking layer (4), anti-sticking layer (4) parcel is at insulating heart yearn (1) periphery side.

2. The electrical power cord as set forth in claim 1, wherein: be provided with dull polish layer (3) between insulating heart yearn (1) and anti-sticking layer (4), dull polish layer (3) set up at insulating heart yearn (1) surface.

3. The electrical power cord as set forth in claim 2, wherein: the frosting layer (3) is uniformly distributed along the outer surface of the insulation core wire (1) in a spiral shape.

4. The electrical power cord as set forth in claim 1, wherein: and a lubricating layer (5) is arranged between the anti-sticking layer (4) and the sheath (2).

5. The electrical power cord as set forth in claim 1, wherein: the sheath (2) is internally provided with an enhancement layer (7), and the enhancement layer (7) is arranged in an annular structure.

6. The electrical power cord as set forth in claim 5, wherein: the reinforcing layer (7) is arranged in the sheath (2) in a net-shaped annular net structure.

7. The electrical power cord as set forth in claim 1, wherein: the cable is characterized by further comprising a filling wire (6), wherein the filling wire (6) and the insulating core wire (1) are both positioned in the sheath (2).

8. The electrical power cord as set forth in claim 1, wherein: the anti-sticking layer (4) is arranged as a talcum powder layer.

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