CN207742947U - A kind of lightweight construction cable for charging electric automobiles - Google Patents

Abstract

The utility model discloses a kind of lightweight construction cable for charging electric automobiles, it includes that cable conductor is superfine annealed copper line and carbon fiber composite conductor, protective layer is set outside cable conductor, insulating layer is set outside protective layer, for described a plurality of insulated core by twisted together with signal wire, control line, gasket for packing, outside is disposed with wrapping layer, protective layer and restrictive coating.Polypropylene mesh split fibre gasket for packing, nonwoven idea cloth twining package tape, carbon fiber conductor, aramid fiber protective layer, ethylene propylene rubber insulated layer, the thermoplastic elastomer sheath layer of the utility model selection are the smaller lightweight material of density, material thermal resistance can be high, heat conductivility is excellent, is the common new technology material for being easy to buying currently on the market.The cable being manufactured into have density of texture it is small, overall weight is light, and current-carrying capacity is big, it is safe to use, permanent, light the features such as.

Description

A kind of lightweight construction cable for charging electric automobiles

Technical field

The utility model is related to a kind of manufacturing of lightweight construction special cable, specifically a kind of electronic vapour of lightweight construction Vehicle charging cable and manufacture craft, product structure is novel, safe to use, permanent, light.

Background technology

Currently, domestic production manufacture cable for charging electric automobiles is with reference to execution standard《DB34T 2618.1-2016 are new Energy automobile charging pile cable》, right only to conductor structure, core number, insulating layer and jacket layer material characteristic and requirement of shelter Requirement is not made in protective layer, gasket for packing, shielded layer etc., also there is no the particularity having with regard to the construction of cable and certain materials Energy advantage is otherwise provided.Select the single diameter of conductor structure excessive for cable for charging electric automobiles currently on the market, current-carrying It measures small；Insulation and sheath material density are big, overall weight weight；Manufacturing process structure is not optimized and causes the normal use time short etc. Problem brings more uncertain factor to user's normal use.

Utility model content

The utility model provides a kind of cable for charging electric automobiles of lightweight construction, the electricity to overcome drawbacks described above The requirement of cable the selection of material is high, process structure is novel, conductor current-carrying capacity is big, cable overall weight is light, safe to use permanent.

To realize the utility model aim, following technical scheme is provided：A kind of lightweight construction charging electric automobiles Cable, including cable conductor（1）, it is characterised in that the cable conductor（1）For superfine annealed copper line and carbon fiber composite conductor, Cable conductor（1）Outer setting No.1 protective layer（2）, No.1 protective layer（2）Outer setting insulating layer（3）, three's composition cable core, A plurality of insulated core and signal wire（4）, control line（5）, gasket for packing（6）Together by twisted, outside is disposed with wrapping layer （7）, No. two protective layers（8）And restrictive coating（9）.

Preferably, the cable conductor（1）It is the beam centered on internal layer by the composite conductor of inside and outside up of three layers, in Layer closes process for the thin circle soft copper harness of diameter 0.05~0.12mm annealing and forms, and outer layer is woven using carbon fiber wire, center Shu Caiyong carbon fiber wires.

Preferably, No.1 protective layer（2）With No. two protective layers（8）It is to be woven using aramid fiber.

Preferably, the insulating layer（3）It is extruded with insulation package level ethylene-propylene rubber by cable.

Preferably, the signal wire（4）Ethylene propylene rubber insulation material is closed by diameter 0.08~0.15mm copper wire beams to extrude It forms.

Preferably, the control line（5）Ethylene propylene rubber insulation material is closed by diameter 0.10~0.20mm copper wire beams to extrude It forms.

Preferably, the gasket for packing（6）For the netted split fibre rope of low density polypropylene.

Preferably, the wrapping layer（7）For the light-duty nonwoven idea cloth of cable.

Preferably, the restrictive coating（9）It is extruded with thermoplastic elastomer sheath material by low-density cable.

The utility model advantageous effect：

1, the composite conductor that cable conductor is formed using the thin circle annealed copper wire of the smaller annealing of diameter and carbon fiber wire is same Under conditions of weight, current-carrying capacity of cable improves 20% or more, can reduce a specification conductor section, correspondingly alleviate cable Weight, use are light.

2, central beam ensure that the tensile property of cable using carbon fiber wire；Annealed copper wire is carefully justified using the smaller annealing of diameter Process is closed by defined process structure beam to form, and ensure that the bending softness of cable；Conductor outer layer is compiled using carbon fiber wire Conductor diameter is knitted when ensure that bending in smaller expansion coefficient, to ensure that insulating layer infrequently excessively expands and tired Labor is damaged, it is ensured that the service life of product.

The displacement of insulating layer and restrictive coating when 3, increasing bending using conductor protective layer and twisted rear wrapping layer, protective layer Range reduces the displacement frictional force of insulating layer and restrictive coating, consequently reduces insulating layer and restrictive coating abrasion damage, extends Insulating layer and restrictive coating service life.

4, the raw material property used is excellent, special process structure, novel design, ensure that cable application safety, knot Structure is permanent, is not likely to produce larger deformation, is steadily run to cable long-term safety and provides strong guarantee.

Description of the drawings

Fig. 1 is the cross-sectional structure schematic diagram of the utility model.

In figure：1- cable conductors, 2- No.1 protective layers, 3- insulating layers, 4- signal wires, 5- control lines, 6- gasket for packings, 7- around Covering, No. bis- protective layers of 8-, 9- restrictive coatings.

Specific implementation mode

The utility model is described in detail in the following with reference to the drawings and specific embodiments：

Embodiment 1：As shown in Figure 1, a kind of lightweight construction cable for charging electric automobiles, including cable conductor 1, it is described Cable conductor 1 is the beam centered on internal layer by the composite conductor of inside and outside up of three layers, and middle level is diameter 0.05~0.12mm annealing Thin circle soft copper harness closes process and forms, and outer layer is woven using carbon fiber wire, and central beam uses carbon fiber wire.

No.1 protective layer 2 is set outside cable conductor 1, insulating layer 3 is set outside No.1 protective layer 2, three constitutes cable core, For a plurality of insulated core with signal wire 4, control line 5, gasket for packing 6 together by twisted, outside is disposed with wrapping layer 7, two Protective layer 8 and restrictive coating 9.

The No.1 protective layer 2 and No. two protective layers 8 are to be woven using aramid fiber；The insulating layer 3 is cable It is extruded with insulation package level ethylene-propylene rubber；The gasket for packing 6 is the netted split fibre rope of low density polypropylene；The restrictive coating 9 It is extruded with thermoplastic elastomer sheath material for cable.

The carbon fiber that cable conductor uses is a kind of high intensity, high-modulus new fiber materials, is by flake graphite It is axially piled up along fiber, the manufactured micro-crystal fiber material through carbonization treatment.Carbon fiber is soft outside but hard inside, density ratio metal Aluminium is small, and intensity is but higher than steel；Heat resistance is fabulous under non-oxidizing atmosphere, fatigue performance is excellent, without creep；With good heat conduction Performance, coefficient of thermal expansion are small, also the conductive characteristic with graphite material；The insoluble and in-expandable in organic solvent, acid, alkali, oil resistant resist Radiation, excellent anti-corrosion performance can absorb toxic gas.The softness and machinability of textile fabric are had both, braiding can be carried out and added Work and Wrapping formed is reinforcing fiber hitech materials.The tensile strength of carbon fiber is the decades of times of copper wire, and density is too late Its a quarter, carbon fiber are carrying out anti-metallic carbide, carburizing and electrochemical corrosion surface treatment before, can directly apply In the products such as cable conductor and Far infrared heating.

The thin circle annealed copper wire of diameter 0.05~0.12mm annealing that cable conductor uses, optimizes the softness of conductor.Through Science is tested, and 20% or more current-carrying capacity of cable can be improved in the fine copper wire and carbon fiber conductor of equal quality, and soft copper wire is by defined Process structure by beam close and reversed process form, reduce cable conductor bending when internal stress, the twisted lay ratio used for 10~12 times, cable conductor is then more soft, light-weight, current-carrying capacity is big.

In a kind of production of lightweight construction cable for charging electric automobiles, the polyester belt of narrower bandwidth can be selected as cable The wrapped separation layer of high Duplication between conductor and protective layer obstructs the frictional force of conductor and protective layer, increases shift length, makes The cable produced is more soft, is more flexurally compliant.

The aramid fiber that cable shield uses is also a kind of high intensity, the novel high-tech synthetic fibers of high-modulus, be by Poly P phenylene diamine terephthalamide is by polymerization, continuous yarn spinning and the production of three technical process of tow conversion.Its intensity is steel wire 5~6 times, modulus is 2~3 times of steel wire, and toughness is 2 times of steel wire, and weight is only 1/5th of steel wire, at 560 degree At a temperature of, it does not decompose, does not melt.Aramid fiber has that high temperature resistant, acid-fast alkali-proof, light-weight, insulation performance be good, ageing resistance The excellent performances such as energy, life cycle length, can be applied to the new technologies such as composite material, special type protection, electronic equipment field.

Conductor outer layer and protective layer use woven structure, woven structure to be not likely to produce big deformation, make cable conductor Stablize in some special deformation coefficient range with twisted core, to preferably protect insulating layer and restrictive coating be not by To significantly tensile deformation, prevent insulating layer and restrictive coating damaged by fatigue stretching, it is ensured that the service life of cable.

In the process that insulate, cable insulation package level ethylene-propylene rubber is selected to squeeze out cladding.EP rubbers is to be with ethylene and propylene The copolymer of base monomer synthesis, because its main chain is made of chemically stable saturated hydrocarbons, thus it is its resistance to ozone, heat-resisting, weather-proof, resistance to Ageing properties have good chemicals-resistant, impact resistance elasticity, heat-resisting water and steam performance and low-density and high fillibility Etc. characteristics, can be widely applied to the fields such as waterproof material, cable insulation, sealing element.EP rubbers density is 0.87g/cm³, can Adding a large amount of filler reduces cost, fills up raw rubber and holds at high price and inconvenient universal disadvantage.EP rubbers product exists It can be used for a long time at 120 DEG C, there is excellent electrical insulation capability and corona resistance, electrical property is close to polyethylene, and in low temperature Under remain to keep elasticity.

In sheath process, the thermoplastic elastomer sheath material of resistant to environmental cracking is selected to squeeze out cladding.Thermoplastic elastic Body is a kind of novel high polymer material between rubber and resin, also referred to as third generation rubber.Thermoplastic elastomer (TPE) is close Degree is in 0.82~1.20g/cm³, the elasticity with rubber at normal temperatures, under high temperature plasticization be molded.Its molecular structure is by chemistry Key forms different resin section and rubber segments, and resin section forms physics crosslinking points by inter-chain action power, and the physics of plastics section is handed over Join variation with temperature and be in reversible change, shows the processing characteristics of plastics；Rubber segments are high resiliency segments, have vulcanization rubber The physical mechanical property of glue.It is excellent that thermoplastic elastomer (TPE) had both had the high resiliency of traditional cross-linking vulcanized rubber, ageing-resistant, oil resistivity etc. It is anisotropic can, be a kind of high-grade novel environment friendly, nontoxic tech materials but also with common plastics feature easy to process.Using Common plastics extruder is closely extruded in cable core surface, simplifies process, reduces processing cost, substitutes the conjunction of traditional rubber At material, the smooth rounding of cable surface, comfortable feel, the good appearance that are manufactured into.

In a kind of production of lightweight construction cable for charging electric automobiles, the netted split fibre rope of low density polypropylene is selected For packing material, it is around packaging material and carbon fiber, aramid fiber, EP rubbers, thermoplastic elastic to select light-duty nonwoven idea cloth Body protective cover material is all the smaller cable lightweight material of density, and material thermal resistance can be high, and heat conductivility is excellent, the cable tool being manufactured into There is density of texture small, the features such as overall weight is light, and current-carrying capacity is big, and use is light, safe, permanent.

Example set out above is only that preferred embodiments of the present invention are described, not new to this practicality The conception and scope of type is defined, under the premise of not departing from the utility model design conception, ordinary skill technology in this field The various modification improvement and manufacturing method that personnel make the technical solution of the utility model, should all fall into the guarantor of the utility model Range is protected, the claimed technology contents of the utility model have all been recorded in detail in the claims.

Claims (9)

1. a kind of lightweight construction cable for charging electric automobiles, including cable conductor（1）, it is characterised in that the cable conductor （1）For superfine annealed copper line and carbon fiber composite conductor, cable conductor（1）Outer setting No.1 protective layer（2）, No.1 protective layer （2）Outer setting insulating layer（3）, three constitutes cable core, a plurality of insulated core and signal wire（4）, control line（5）, gasket for packing （6）Together by twisted, outside is disposed with wrapping layer（7）, No. two protective layers（8）And restrictive coating（9）.

2. a kind of lightweight construction cable for charging electric automobiles according to claim 1, it is characterised in that：The cable is led Body（1）It is the beam centered on internal layer by the composite conductor of inside and outside up of three layers, middle level is the thin circle of diameter 0.05~0.12mm annealing Soft copper harness closes process and forms, and outer layer is woven using carbon fiber wire, and central beam uses carbon fiber wire.

3. a kind of lightweight construction cable for charging electric automobiles according to claim 1, it is characterised in that：No.1 protective layer （2）With No. two protective layers（8）It is to be woven using aramid fiber.

4. a kind of lightweight construction cable for charging electric automobiles according to claim 1, it is characterised in that：The insulating layer （3）It is extruded with insulation package level ethylene-propylene rubber by cable.

5. a kind of lightweight construction cable for charging electric automobiles according to claim 1, it is characterised in that：The signal wire （4）Ethylene propylene rubber insulation material is closed by diameter 0.08~0.15mm copper wire beams to extrude.

6. a kind of lightweight construction cable for charging electric automobiles according to claim 1, it is characterised in that：The control line （5）Ethylene propylene rubber insulation material is closed by diameter 0.10~0.20mm copper wire beams to extrude.

7. a kind of lightweight construction cable for charging electric automobiles according to claim 1, it is characterised in that：The gasket for packing （6）For the netted split fibre rope of low density polypropylene.

8. a kind of lightweight construction cable for charging electric automobiles according to claim 1, it is characterised in that：The wrapping layer （7）For the light-duty nonwoven idea cloth of cable.

9. a kind of lightweight construction cable for charging electric automobiles according to claim 1, it is characterised in that：The restrictive coating （9）It is extruded with thermoplastic elastomer sheath material by low-density cable.