CN205069152U - High tensile electric wire - Google Patents

Abstract

The utility model relates to an electric wire field, concretely relates to high tensile electric wire, locate the band layer and the cover of all sinle silks outsides including two insulating each other at least sinle silks, cover and locate the outside protective sheath in band layer, two piece at least sinle silks strand each other, the sinle silk include the conductor constituteed by 19 copper wires, cladding in the outside insulating layer of conductor, fill the filling layer in clearance between conductor and insulating layer, the band layer is by the polypropylene materials shaping of foaming, and the inside on band layer has the bubble, the conductor forms for the combination of the copper wire by three -layer 1+6+12 structural style, and the copper wire external diameter is 0.12mm. The utility model discloses a high tensile electric wire compliance is good, resistantly buckle, the pull resistance is strong, mechanical strength is high, the security performance is high and insulating nature is strong.

Description

High tensile electric wire

Technical field

The utility model relates to electric wire field, particularly a kind of high tensile electric wire.

Background technology

Along with the development of science and technology, the continuous progress of industrial technology, electric wire consumption grows with each passing day, the cable of at least two stranded similar ropes normally often organized by electric wire by several or several groups of wires, often organize mutually insulated between wire, and be often twisted into around a center, whole outside is surrounded by the cover layer of high-insulation, according to the difference of applicable situation and suitable environment, also different to the requirement of electric wire performance, no matter in which kind of occasion, on the one hand, because wiring environment is limited, electric wire is needed to carry out curling on direction perpendicular to axial direction according to wiring environment, on the other hand, electric wire often can be subject to the bending of external force in use, as robot reciprocating motion, robot arm, car door, engraving machine, machine tooling equipment, woodworking machinery, the electric wire used in logistics conveyer system and crane and metallurgical industry, the action of repeatability can repeat bending, pull electric wire.These all propose very high requirement to the flexibility of electric wire and pull resistance.

The electric wire of prior art is wound with paper tape in inside usually, the flexibility strengthening electric wire is between the conductors filled by paper tape, but paper tape hardness is high, dielectric constant is high, the pliability of electric wire is caused to reduce, and the impedance of electric wire is high, the loss of signal produced during transmission is large, sometimes cannot meet the high request of client.Experiment proves, common wiring, and after carrying out 5000 bendings, namely phenomenon of rupture can occur, potential safety hazard is larger.

Utility model content

For solving the problem, the utility model provides good, the resistance to bending of a kind of flexibility, pull resistance is strong, mechanical strength is high, security performance is high and the high tensile electric wire that insulating properties is strong.

The technical scheme that the utility model adopts is: high tensile electric wire, comprises at least two cores of mutually insulated, is sheathed on the belting layer of all core outsides, is sheathed on the protective sleeve of belting layer outside and is filled in the packed layer in gap between described core and belting layer; At least two described cores are mutually stranded, and described core comprises the conductor be made up of 19 copper wires and the insulating barrier being coated on conductor outside; Described belting layer is by polypropylene material foaming, and the inside of belting layer has bubble; Described conductor is combined by three layers of copper wire, and three layers of described copper wire radical is from inside to outside respectively 1,6 and 12, and described copper wire external diameter is 0.12mm.

Being improved to further technique scheme, described packed layer is flame resistant filler rope.

Being improved to further technique scheme, described protective sleeve is halogen-free and low-smoke flame-retardant polyolefin oversheath.

Being improved to further technique scheme, described insulating barrier comprises the first dielectric film, braid shielded net and the second dielectric film from the inside to surface, described first dielectric film is IXPE insulating material membrane, and described second dielectric film is low-smoke halogen-free flame-retardant isolating material membrane.

Being improved to further technique scheme, the count of described braid shielded net is not less than 90%, and the computing formula of count is:

P＝(2p-p2)*100％

p＝mnd/ΠD*[1+Π2D2/L2]1/2

In formula: P is count, p is one side coverage coefficient, and m is half number of spindle unit, and n is braided wires radical, and d is braided wires external diameter, and D is core external diameter after braiding, and L is lay of braiding.

The beneficial effects of the utility model are:

1, on the one hand, the copper wire external diameter forming the utility model electric wire is 0.12mm, and relative is the copper wire of 0.18mm with traditional external diameter, and flexibility is good, improves bending resistance folding endurance and the pull resistance of the utility model electric wire; Second aspect; belting layer is by polypropylene material foaming; the some bubbles of inner formation; belting layer hardness is reduced, and the flexibility of electric wire improves, and bending resistance folding endurance improves; and when electric wire is squeezed; bubble can play stress buffer effect, and protection core exempts from destruction, further increases pull resistance and the bending resistance folding endurance of the utility model electric wire.The third aspect, polypropylene material expanded material dielectric constant is low, is conducive to reducing the impedance of electric wire and the loss of signal, improves the quality of signal on electrical wire transmission.Fourth aspect, conductor is combined by the copper wire of three layers of 1+6+12 version, and copper wire adopts three-decker to form conductor, and during wire bend, deformation space is large, and flexibility is good, further increases pull resistance and the bending resistance folding endurance of the utility model electric wire.

2, packed layer is flame resistant filler rope, on the one hand, is fixed the shape of electric wire by packed layer, improves the anti-tensile of electric wire, and improves the aesthetic property of electric wire; On the other hand, packed layer has anti-flammability, when the too high breaking out of fire of electric wire temperature, can organize fire spreading by fire proofing, is conducive to the security performance improving electric wire.

3, protective sleeve is halogen-free and low-smoke flame-retardant polyolefin oversheath, and when breaking out of fire, compared to traditional pvc sheath, protective sleeve LSZH of the present utility model, to human body fanout free region, is convenient to people's escape, is conducive to the security performance improving electric wire.

4, insulating barrier comprises the first dielectric film, braid shielded net and the second dielectric film from the inside to surface, second dielectric film is low-smoke halogen-free flame-retardant isolating material, good insulation preformance, there is again good fire resistance, when fire occurs, because electric wire has fire resistance and nonflammable, and the second dielectric film is after cross-linking radiation, smooth surface rounding, feel are mellow and full, and cost performance is high.

5, the count of woven shield is not less than 90%.Make wire structure compact on the one hand, also can improve the insulation property of electric wire on the other hand.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of core of the present utility model.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, structural representation of the present utility model.

High tensile electric wire 100, comprises at least two cores 110 of mutually insulated, is sheathed on the belting layer 120 of all core 110 outsides, is sheathed on the protective sleeve 140 of belting layer 120 outside and is filled in the packed layer 130 in gap between core 110 and belting layer 120.

As shown in Figure 2, be the structural representation of core of the present utility model.

At least two cores 110 are mutually stranded, and core 110 comprises the conductor 111 be made up of 19 copper wires and the insulating barrier 112 being coated on conductor 111 outside; Belting layer 120 is by polypropylene material foaming, and the inside of belting layer 120 has bubble 121; Conductor 111 is combined by three layers of copper wire, and three layers of copper wire radical is from inside to outside respectively 1,6 and 12, and copper wire external diameter is 0.12mm.

On the one hand, the copper wire external diameter forming the utility model electric wire 100 is 0.12mm, and relative is the copper wire of 0.18mm with traditional external diameter, and flexibility is good, improves bending resistance folding endurance and the pull resistance of the utility model electric wire 100; Second aspect; belting layer 120 is by polypropylene material foaming; the some bubbles 121 of inner formation; belting layer 120 hardness is reduced, and the flexibility of electric wire 100 improves, and bending resistance folding endurance improves; and when electric wire 100 is squeezed; bubble 121 can play stress buffer effect, and protection core 110 exempts from destruction, further increases pull resistance and the bending resistance folding endurance of the utility model electric wire 100.The third aspect, polypropylene material expanded material dielectric constant is low, is conducive to reducing the impedance of electric wire 100 and the loss of signal, improves the quality of electric wire 100 Signal transmissions.Fourth aspect, conductor 111 is combined by the copper wire of three layers of 1+6+12 version, and copper wire adopts three-decker to form conductor 111, and when electric wire 100 bends, deformation space is large, flexibility is good, further increases pull resistance and the bending resistance folding endurance of the utility model electric wire 100.

Packed layer 130 is flame resistant filler rope, on the one hand, is fixed the shape of electric wire 100 by packed layer 130, improves the anti-tensile of electric wire 100, and improves the aesthetic property of electric wire 100; On the other hand, packed layer 130 has anti-flammability, when the too high breaking out of fire of electric wire 100 temperature, can organize fire spreading by fire proofing, is conducive to the security performance improving electric wire 100.

Protective sleeve 140 halogen-free and low-smoke flame-retardant polyolefin oversheath, when breaking out of fire, compared to traditional pvc sheath, protective sleeve 140 LSZH of the present utility model, to human body fanout free region, is convenient to people's escape, is conducive to the security performance improving electric wire 100.

Insulating barrier 112 comprises the first dielectric film 112a, braid shielded net 112b and the second dielectric film 112c from the inside to surface, second dielectric film 112c is low-smoke halogen-free flame-retardant isolating material, good insulation preformance, there is again good fire resistance, when fire occurs, because electric wire 100 has fire resistance and nonflammable, and the second dielectric film 112c is after cross-linking radiation, smooth surface rounding, feel are mellow and full, and cost performance is high.

The count of braid shielded net 112b is not less than 90%, and the computing formula of count is:

P＝(2p-p2)*100％

p＝mnd/ΠD*[1+Π2D2/L2]1/2

In formula: P is count, p is one side coverage coefficient, and m is half number of spindle unit, and n is braided wires radical, and d is braided wires external diameter, and D is core 110 external diameter after braiding, and L is lay of braiding.

Make electric wire 100 compact conformation on the one hand, also can improve the insulation property of electric wire 100 on the other hand.

Manufacture method of the present utility model is:

First 19 bare copper wires are formed the three-decker composition conductor 111 of 1+6+12; at conductor 111 outer coated first dielectric film 112a, braid shielded net 112b and the second dielectric film 112c successively; form core 110; again that several wire core 110 is mutually stranded; and fill the packed layer 130 formed by flame resistant filler rope in gap between core 110 and belting layer 120, finally and insulating barrier 130 outside sheathed belting layer 120 outside at all cores 110 and protective sleeve 140.Wherein, the first dielectric film 112a is IXPE insulating material membrane, and the second dielectric film 112c is low-smoke halogen-free flame-retardant isolating material membrane, and woven shield is that nylon yarn is made, and count is not less than 90%.

The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims (5)

1. high tensile electric wire, is characterized in that: comprise at least two cores of mutually insulated, be sheathed on the belting layer of all core outsides, be sheathed on the protective sleeve of belting layer outside and be filled in the packed layer in gap between described core and belting layer; At least two described cores are mutually stranded, and described core comprises the conductor be made up of 19 copper wires and the insulating barrier being coated on conductor outside; Described belting layer is by polypropylene material foaming, and the inside of belting layer has bubble; Described conductor is combined by three layers of copper wire, and three layers of described copper wire radical is from inside to outside respectively 1,6 and 12, and described copper wire external diameter is 0.12mm.

2. high tensile electric wire according to claim 1, is characterized in that: described packed layer is flame resistant filler rope.

3. high tensile electric wire according to claim 2, is characterized in that: described protective sleeve is halogen-free and low-smoke flame-retardant polyolefin oversheath.

4. high tensile electric wire according to claim 3, it is characterized in that: described insulating barrier comprises the first dielectric film, braid shielded net and the second dielectric film from the inside to surface, described first dielectric film is IXPE insulating material membrane, and described second dielectric film is low-smoke halogen-free flame-retardant isolating material membrane.

5. high tensile electric wire according to claim 4, is characterized in that: the count of described braid shielded net is not less than 90%, and the computing formula of count is:

P＝(2p-p2)*100％

p＝mnd/ΠD*[1+Π2D2/L2]1/2

In formula: P is count, p is one side coverage coefficient, and m is half number of spindle unit, and n is braided wires radical, and d is braided wires external diameter, and D is core external diameter after braiding, and L is lay of braiding.