CN209232433U - A kind of hollow cable - Google Patents
A kind of hollow cable Download PDFInfo
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- CN209232433U CN209232433U CN201822150711.3U CN201822150711U CN209232433U CN 209232433 U CN209232433 U CN 209232433U CN 201822150711 U CN201822150711 U CN 201822150711U CN 209232433 U CN209232433 U CN 209232433U
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- 238000003032 molecular docking Methods 0.000 claims description 3
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Abstract
A kind of hollow cable, structure are that wrapping layer and oversheath are successively wrapped up outside cable core；The cable core is made of circulating cooling hose and more cable twists, and the filling in the gap of each cable is polypropylene filling rope；Wrapped nonwoven fabric belts constitute nonwoven layer outside cable core, and inner sheath is also wrapped up outside nonwoven layer, the reticular structure that wire is constituted is wrapped up outside inner sheath, separation layer is wrapped up outside reticular structure, oversheath is wrapped up outside separation layer；Each cable is respectively as follows: accessory power supply core: wrapping up in auxiliary power supply line core insulation layer by accessory power supply cable core conductor outsourcing and constitutes；Signal core group: insulating layer is wrapped up in by signal core conductor outsourcing and constitutes signal core, more signal cores and the twisted composition signal core cable core of filling；Wire core: it is constituted by wrapping up ground wire core insulating barrier outside ground wire core conductor；Active force core: it is made of the main line core conductor and master core insulating layer successively wrapped up outside hose；Circulating cooling hose: the hollow pipe constituted is squeezed out by thermoplastic elastic material.
Description
Technical field
The technical program belongs to field of cable technology, specifically a kind of hollow cable.
Background technique
That there is specific energies is low for the common lithium ion power storage battery of new-energy automobile at present, and the primary continual mileage that charges is short
The problem of.Therefore, in the case where current driving force battery cannot provide more continual mileages, if the charging for being able to achieve battery is fast
Speedization solves the short deadly defect of electric car continual mileage from another angle.Charge the rapid demand for becoming development.
Three-element catalytic technology, gradually maturation, the specific energy of power accumulator of graphene technology are constantly being promoted simultaneously, and this requires not
While realizing quick charge, meet the high-power charging of battery, realizes the powerful transmitting of charging.
Either hybrid vehicle, pure electric automobile or fuel cell car all be unable to do without high-voltage electric system.It is pure
Electric car and plug-in hybrid-power automobile take more than the high voltage and several hundred amperes of high currents of 300V.The promotion meeting of voltage
The requirement on electric performance of charging components, higher cost are improved, the estimated highest of following voltage is promoted to 1000V.The promotion of electric current
Essential approach as high-power charging.Current electric current maximum may achieve 250A, and the cable of charging has used 95mm2Electricity
Cable, to guarantee the safety of actual use.When electric current continues to increase to 400A, the cross-sectional area of conductor of traditional charging cable needs
Reach 185mm2 or 240mm2, cable substance is big, outer diameter is big, inconvenient for use.If electric current rises to 500A again, charging cable
Cross-sectional area of conductor, outer diameter need to continue to increase, bring cable weight, not flexible, purchase cost is high, it is inconvenient, production and processing
The disadvantages of difficult to control.
The electric current of high-power charging is larger (250A is promoted to 400A or more), for the fever phenomenon for solving cable, harness
Diameter therewith thicker (50mm or more), the operability of charging reduces, and the economy of scheme reduces.So having to design newly
Scheme solves the heating problem of high current, transmits biggish electric current with lesser cable.
High-power charging technique includes that cooling system technology, cooling cable technology and coolant interface technology, cable temperature rise are surveyed
Examination technology etc..
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the technical program proposes a kind of hollow cable, specifically:
A kind of hollow cable, cable core successively wrap up wrapping layer and oversheath outside；The cable core by circulating cooling hose and
More cable twists are constituted, and the filling in the gap of each cable is polypropylene filling rope；Wrapped nonwoven fabric belts are constituted outside cable core
Nonwoven layer, nonwoven layer also wrap up inner sheath outside, the reticular structure that wire is constituted, reticular structure outsourcing are wrapped up outside inner sheath
Separation layer is wrapped up in, oversheath is wrapped up outside separation layer；
The radial section of the cable core is round；According to line footpath size, including the biggish function cable of line footpath, line footpath is smaller
Function cable outside, be arranged successively；The immediate two functions cable of line footpath is located along the straight line across the center of circle into axis pair
Claim；Each cable is respectively as follows:
A, accessory power supply core: auxiliary power supply line core insulation layer is wrapped up in by accessory power supply cable core conductor outsourcing and is constituted；
B, signal core group: insulating layer is wrapped up in by signal core conductor outsourcing and constitutes signal core, more signal cores and filling twist
It closes and constitutes signal core cable core；
E, it wire core: is constituted by wrapping up ground wire core insulating barrier outside ground wire core conductor；
F, it active force core: is made of the main line core conductor and master core insulating layer successively wrapped up outside hose；
G, the hollow pipe constituted circulating cooling hose: is squeezed out by thermoplastic elastic material；
The accessory power supply core, signal core group, active force core, wire core and circulating cooling hose respectively have even number root.
The wrapped overlap rate of nonwoven fabric belts outside cable core be not less than 5mm, nonwoven fabric belts with a thickness of 0.1mm.
Main line core conductor includes more strands, and each strand is constituted by metal monofilament is twisted；Each strand prolongs hose
For axis direction process outside hose, twisted wire outermost layer pitch is not more than 150mm.
The active force cable core conductor is identical with the requirement of ground wire core conductor core copper conductor, they are all by multiply copper list
Silk is constituted；The diameter range of copper monofilament is 0.1mm~0.2mm；The twisted stranding distance of copper monofilament is no more than twisted rear conductor diameter
18 times, the stranding distance of per share copper monofilament is not more than 35 times of twisted rear strand outer diameter；Copper monofilament is annealing naked copper monofilament, in copper monofilament
The oxygen content of copper is not more than 0.001%, and 20 DEG C of volume resistivities are not more than 0.01701 Ω .mm2/m；
The accessory power supply cable core conductor, the requirement of signal core conductor are identical, they are all copper foil conductors, and copper foil conductor is
Copper foil docking is dredged be wound on fiber surface after, then with copper monofilament is twisted constitutes；Copper monofilament is annealing naked copper monofilament, copper in copper monofilament
Oxygen content is not more than 0.001%, and 20 DEG C of volume resistivities are not more than 0.01701 Ω .mm2/m。
It is also enclosed with wrapping layer outside active force cable core conductor, wraps up master core insulating layer, master core insulating layer outside wrapping layer
It is outer to wrap up the reinforcement/explosion-proof layer being made of wire braid, metal tape or fiber braiding layer.
In signal core group, it is overlapped wrapped metal tape outside signal core cable core and constitutes metal wrapping layer, is wrapped up outside metal wrapping layer
Copper-wire braided layer constitutes metal screen layer, and copper wire is tinned copper wire, proof copper-wire braided layer surface also wrap jacket layer；
The wrapped lap wound packet of attaching most importance to of metal twining package tape, Duplication are not less than 25%；
The brass wire diameter of metal screen layer is not more than 0.15mm, count 80%~90%.
The requirement of reticular structure outside the cable core are as follows: mesh density is not less than 80%, and wire is tinned copper wire or naked
Copper wire, wherein 20 DEG C of resistivity of tinned copper wire≤0.01780 Ω mm2/m, 20 DEG C of resistivity of bare copper wire≤0.017241 Ω
mm2/m；The elongation of reticular structure is not less than 15%；
Separation layer is that environmentally friendly non-absorbent material is constituted, and separation layer thickness is not more than 0.1mm.
The minimum 0.7mm of the nominal wall thickness of circulating cooling hose；Oversheath nominal thickness is not less than 1.7mm.
Above-mentioned cable encounters problem in actual production: due to using new structure, using traditional processing technology, or
It is that empirically equal be modified on traditional processing technology can not all produce the cable for reaching theoretical performance, or even can not give birth to
Produce the cable for meeting custom requirements.For this purpose, the invention proposes a kind of new manufacturing method, it is exclusively used in the cable, specifically such as
Under:
A kind of manufacturing method of above-mentioned cable, step include:
1) conductor strand and copper foil conductor are first manufactured:
A, conductor strand: is constituted by copper monofilament is twisted；The diameter range of copper monofilament is 0.1mm~0.2mm；Copper monofilament
18 times of twisted stranding distance no more than twisted rear conductor diameter；Copper monofilament is annealing naked copper monofilament, the oxygen content of copper in copper monofilament
No more than 0.001%, 20 DEG C volume resistivity is not more than 0.01701 Ω .mm2/m；
B, it copper foil conductor: is made of thin be twisted again with copper monofilament after fiber of copper foil；Copper monofilament is annealing naked copper monofilament, copper
The oxygen content of copper is not more than 0.001% in monofilament, and 20 DEG C of volume resistivities are not more than 0.01701 Ω .mm2/m；
Copper foil conductor is of different sizes according to its line footpath, makees accessory power supply cable core conductor and signal core conductor respectively, spare；
2) manufacture of each function cable:
2.1) it manufactures active force core: taking conductor strand, it is more using hauling cage machine in hose outer surface process multiply strand
Stock strand prolongs the distribution of hose shaft core direction；When process, hauling speed is 9.717 ± 2m/min, and traction revolving speed is 10~15 grades；It twists
Line outermost layer pitch is not more than 150mm；Heat cured insulation material is extruded outside it again, it is spare；
2.2) it manufactures accessory power supply core: taking accessory power supply cable core conductor, and extrude heat cured insulation material outside it；It is standby
With；
2.3) it manufactures wire core: conductor being taken to be twisted with strand, then extrude heat cured insulation material outside it；It is spare；
2.4) signal core group: the number of winning the confidence core conductor is manufactured, and extrudes heat cured insulation material outside it, constitutes signal core；
More cores are twisted to constitute signal core cable core, and gap uses non-hygroscopic high temperature resistant, twisting type gasket for packing；Weight outside signal core cable core
Lap wound aluminium foil band, wrapped overlap rate are not less than 25%；Tincopper fuse wire braided armor, tinned copper wire diameter are wrapped up outside aluminium foil strip again
No more than 0.15mm, count 80%~90%；
The twisting pitch of each signal core group is not identical, to avoid the interference of signal core group；
3) after cable made from above-mentioned steps and circulating cooling hose being twisted into cable core jointly, further around packet non-woven fabrics
Band, stranding twisting pitch range is outer diameter after 12~14 times of cores are twisted here；
4) extrude inner sheath material outside nonwoven fabric belts, after cooling, then reticular structure that successively package wire is constituted and
Separation layer finally extrudes oversheath material outside separation layer and constitutes oversheath.
In step 3), the twisted equipment of cable core is back-twisting cable-former, and 85~90r/min of cage revolving speed of cable-former is (excellent
Select 87r/min), 4~5m/min of hauling speed (preferably 4m/min), 10~20r/min of taping head revolving speed；The stranding of cable-former is simultaneously
Line mould uses tungsten steel die, and internal orifice dimension is equal to core and is twisted outer diameter, and stranding direction is dextrad；
Nonwoven fabric belts are overlapped wrapped overlap rate not less than 25%；When wrapped, hauling speed is 4~5m/min, wrapped section
Away from for 40 ± 5mm, the tension on nonwoven fabric belts is 40~45N (preferably 40N)；Lapping direction is dextrad, twining package tape with a thickness of
0.1mm。
In the step 2), heat cured insulation material is thermo-setting elastomer Insulation Material, according to each insulation layer structure, is used
Corresponding mold, extruded insulation material, and it is cooling；Extruding machine and on head match mold core, die sleeve, mold core aperture=conductor diameter
+0.2mm；
Heat cured insulation material extrudes requirement are as follows:
From discharging direction is fed to, extruding machine fuselage warm area is respectively as follows: 145 ± 5 DEG C of an area, 150 ± 5 DEG C of 2nd area, 3rd area
160 ± 5 DEG C, 170 ± 5 DEG C of 4th area, 180 ± 5 DEG C of 5th area；The temperature of each warm area of head and machine neck is all 185 ± 5 DEG C；
Wherein: an area is pan feeding section, and 2nd area, 3rd area are fluxing zone, and 4th area, 5th area are homogenizing zone；
Insulation Material accelerates to complete to irradiate after squeezing out by electronics, 1.2~2.1MEV of irradiation energy, line 20mA~26mA,
Energy ratio 1.2~2.0,30~120m/min of line speed；
In the step 4), oversheath material is extruded using extruding machine；
From being fed to discharging direction, discharging direction, fuselage warm area are as follows: 145 ± 5 DEG C of an area, 155 ± 5 DEG C of 2nd area, 3rd area
165 ± 5 DEG C, 175 ± 5 DEG C of 4th area, 185 ± 5 DEG C of 5th area；
Head, machine neck the temperature of each warm area be all 195 ± 5 DEG C.
Wherein: an area is pan feeding section, and 2nd area, 3rd area are fluxing zone, and 4th area, 5th area are homogenizing zone.
This cable passes through the particular design of material, structure etc., is full of in charging time 15min, and continue a journey 400km, cable weight
Amount, outer diameter reduce, and less than 15 DEG C, the application of the technology, solution China new-energy automobile that can be inexpensive fills for charging fever temperature rise
The bottleneck problem of electric time length, is conducive to the popularization and use of new-energy automobile.Using cable made from this method, it is able to satisfy design
It is required that meanwhile, qualification rate reaches 98% or more.
The active force insulated wire cores conductor of this cable declines 30%, is full of in charging time 15min, cable weight, outer diameter
It reduces, the application of the technology, the bottleneck problem of solution China's new-energy automobile charging time length that can be inexpensive is conducive to new energy
The popularization and use of source automobile.
Detailed description of the invention
Fig. 1 is the radial cross section of the present embodiment cable,
In figure: hose 1, main line core conductor 2, master core insulating layer 3, accessory power supply cable core conductor 4, accessory power supply core are exhausted
Edge layer 5, ground wire core conductor 6, ground wire core insulating barrier 7, signal core conductor 8, insulating layer 9 outside signal core conductor, signal core are filled out
Fill 10, metal twining package tape 11, wire braid 12, circulating cooling hose 13, the filling 14 of cable core, nonwoven layer 15, outer shield
Set 16.
Specific embodiment
The technical program is further described below combined with specific embodiments below:
Such as Fig. 1, a kind of hollow cable, structure is that wrapping layer and oversheath are successively wrapped up outside cable core；The cable core is by recycling
Cooling tube and more cable twists are constituted, and the filling in the gap of each cable is polypropylene filling rope；It is wrapped outside cable core
Nonwoven fabric belts constitute nonwoven layer, and inner sheath is also wrapped up outside nonwoven layer, the reticular structure that wire is constituted is wrapped up outside inner sheath,
Separation layer is wrapped up outside reticular structure, and oversheath is wrapped up outside separation layer；
The radial section of the cable core is round；According to line footpath size, including the biggish function cable of line footpath, line footpath is smaller
Function cable outside, be arranged successively；The immediate two functions cable of line footpath is located along the straight line across the center of circle into axis pair
Claim；Each cable is respectively as follows:
A, accessory power supply core: auxiliary power supply line core insulation layer is wrapped up in by accessory power supply cable core conductor outsourcing and is constituted；
B, signal core group: insulating layer is wrapped up in by signal core conductor outsourcing and constitutes signal core, more signal cores and filling twist
It closes and constitutes signal core cable core；
E, it wire core: is constituted by wrapping up ground wire core insulating barrier outside ground wire core conductor；
F, it active force core: is made of the main line core conductor and master core insulating layer successively wrapped up outside hose；
G, the hollow pipe constituted circulating cooling hose: is squeezed out by thermoplastic elastic material；
The accessory power supply core, signal core group, active force core, wire core and circulating cooling hose respectively have even number root.
The wrapped overlap rate of nonwoven fabric belts outside cable core be not less than 5mm, nonwoven fabric belts with a thickness of 0.1mm.
Main line core conductor includes more strands, and each strand is constituted by metal monofilament is twisted；Each strand prolongs hose
For axis direction process outside hose, twisted wire outermost layer pitch is not more than 150mm.
The active force cable core conductor is identical with the requirement of ground wire core conductor core copper conductor, they are all by multiply copper list
Silk is constituted；The diameter range of copper monofilament is 0.1mm~0.2mm；The twisted stranding distance of copper monofilament is no more than twisted rear conductor diameter
18 times, the stranding distance of per share copper monofilament is not more than 35 times of twisted rear strand outer diameter；Copper monofilament is annealing naked copper monofilament, in copper monofilament
The oxygen content of copper is not more than 0.001%, and 20 DEG C of volume resistivities are not more than 0.01701 Ω .mm2/m；
The accessory power supply cable core conductor, the requirement of signal core conductor are identical, they are all copper foil conductors, and copper foil conductor is
Copper foil docking is dredged be wound on fiber surface after, then with copper monofilament is twisted constitutes；Copper monofilament is annealing naked copper monofilament, copper in copper monofilament
Oxygen content is not more than 0.001%, and 20 DEG C of volume resistivities are not more than 0.01701 Ω .mm2/m。
It is also enclosed with wrapping layer outside active force cable core conductor, wraps up master core insulating layer, master core insulating layer outside wrapping layer
It is outer to wrap up the reinforcement/explosion-proof layer being made of wire braid, metal tape or fiber braiding layer.
In signal core group, it is overlapped wrapped metal tape outside signal core cable core and constitutes metal wrapping layer, is wrapped up outside metal wrapping layer
Copper-wire braided layer constitutes metal screen layer, and copper wire is tinned copper wire, proof copper-wire braided layer surface also wrap jacket layer；
The wrapped lap wound packet of attaching most importance to of metal twining package tape, Duplication are not less than 25%；
The brass wire diameter of metal screen layer is not more than 0.15mm, count 80%~90%.
The requirement of reticular structure outside the cable core are as follows: mesh density is not less than 80%, and wire is tinned copper wire or naked
Copper wire, wherein 20 DEG C of resistivity of tinned copper wire≤0.01780 Ω mm2/m, 20 DEG C of resistivity of bare copper wire≤0.017241 Ω
mm2/m；The elongation of reticular structure is not less than 15%；
Separation layer is that environmentally friendly non-absorbent material is constituted, and separation layer thickness is not more than 0.1mm.
The minimum 0.7mm of the nominal wall thickness of circulating cooling hose；Oversheath nominal thickness is not less than 1.7mm.
A kind of manufacturing method of above-mentioned cable, step include:
1) conductor strand and copper foil conductor are first manufactured:
A, conductor strand: is constituted by copper monofilament is twisted；The diameter range of copper monofilament is 0.1mm~0.2mm；Copper monofilament
18 times of twisted stranding distance no more than twisted rear conductor diameter；Copper monofilament is annealing naked copper monofilament, the oxygen content of copper in copper monofilament
No more than 0.001%, 20 DEG C volume resistivity is not more than 0.01701 Ω .mm2/m；
B, it copper foil conductor: is made of thin be twisted again with copper monofilament after fiber of copper foil；Copper monofilament is annealing naked copper monofilament, copper
The oxygen content of copper is not more than 0.001% in monofilament, and 20 DEG C of volume resistivities are not more than 0.01701 Ω .mm2/m；
Copper foil conductor is of different sizes according to its line footpath, makees accessory power supply cable core conductor and signal core conductor respectively, spare；
2) manufacture of each function cable:
2.1) it manufactures active force core: taking conductor strand, it is more using hauling cage machine in hose outer surface process multiply strand
Stock strand prolongs the distribution of hose shaft core direction；When process, hauling speed is 9.717 ± 2m/min, and traction revolving speed is 10~15 grades；It twists
Line outermost layer pitch is not more than 150mm；Heat cured insulation material is extruded outside it again, it is spare；
2.2) it manufactures accessory power supply core: taking accessory power supply cable core conductor, and extrude heat cured insulation material outside it；It is standby
With；
2.3) it manufactures wire core: conductor being taken to be twisted with strand, then extrude heat cured insulation material outside it；It is spare；
2.4) signal core group: the number of winning the confidence core conductor is manufactured, and extrudes heat cured insulation material outside it, constitutes signal core；
More cores are twisted to constitute signal core cable core, and gap uses non-hygroscopic high temperature resistant, twisting type gasket for packing；Weight outside signal core cable core
Lap wound aluminium foil band, wrapped overlap rate are not less than 25%；Tincopper fuse wire braided armor, tinned copper wire diameter are wrapped up outside aluminium foil strip again
No more than 0.15mm, count 80%~90%；
The twisting pitch of each signal core group is not identical, to avoid the interference of signal core group；
3) after cable made from above-mentioned steps and circulating cooling hose being twisted into cable core jointly, further around packet non-woven fabrics
Band, stranding twisting pitch range is outer diameter after 12~14 times of cores are twisted here；
4) extrude inner sheath material outside nonwoven fabric belts, after cooling, then reticular structure that successively package wire is constituted and
Separation layer finally extrudes oversheath material outside separation layer and constitutes oversheath.
In step 3), the twisted equipment of cable core is back-twisting cable-former, and 85~90r/min of cage revolving speed of cable-former is (excellent
Select 87r/min), 4~5m/min of hauling speed (preferably 4m/min), 10~20r/min of taping head revolving speed；The stranding of cable-former is simultaneously
Line mould uses tungsten steel die, and internal orifice dimension is equal to core and is twisted outer diameter, and stranding direction is dextrad；
Nonwoven fabric belts are overlapped wrapped overlap rate not less than 25%；When wrapped, hauling speed is 4~5m/min, wrapped section
Away from for 40 ± 5mm, the tension on nonwoven fabric belts is 40~45N (preferably 40N)；Lapping direction is dextrad, twining package tape with a thickness of
0.1mm。
In this example, the back-twisting cable-former is 3+6 cable-former, and the line equipment of cable-former is put after 9 draw drums and 2 totally
The wheeled unwrapping wire frame of coil holder；Draw drum is set to A1, A2, A3, A4, A5, A6, A7, A8 and A9；A1 places a signal core group, A2
PE wire core 1 is placed, A3 places auxiliary core 1, and A4 places auxiliary core 2, and A5 places PE wire core 2, and A6 places signal core group
2, A7 place master core 1, and A8 places a circulating cooling hose 2, and A9 places master core 2, the wheeled unwrapping wire frame of pay off rack after two
Place a circulating cooling hose.
In the step 2), heat cured insulation material is thermo-setting elastomer Insulation Material, according to each insulation layer structure, is used
Corresponding mold, extruded insulation material, and it is cooling；Extruding machine and on head match mold core, die sleeve, mold core aperture=conductor diameter
+0.2mm；
Heat cured insulation material extrudes requirement are as follows:
From discharging direction is fed to, extruding machine fuselage warm area is respectively as follows: 145 ± 5 DEG C of an area, 150 ± 5 DEG C of 2nd area, 3rd area
160 ± 5 DEG C, 170 ± 5 DEG C of 4th area, 180 ± 5 DEG C of 5th area；The temperature of each warm area of head and machine neck is all 185 ± 5 DEG C；
Wherein: an area is pan feeding section, and 2nd area, 3rd area are fluxing zone, and 4th area, 5th area are homogenizing zone；
Insulation Material accelerates to complete to irradiate after squeezing out by electronics, 1.2~2.1MEV of irradiation energy, line 20mA~26mA,
Energy ratio 1.2~2.0,30~120m/min of line speed；
In the step 4), oversheath material is extruded using extruding machine；
From being fed to discharging direction, discharging direction, fuselage warm area are as follows: 145 ± 5 DEG C of an area, 155 ± 5 DEG C of 2nd area, 3rd area
165 ± 5 DEG C, 175 ± 5 DEG C of 4th area, 185 ± 5 DEG C of 5th area；
Head, machine neck the temperature of each warm area be all 195 ± 5 DEG C.
Wherein: an area is pan feeding section, and 2nd area, 3rd area are fluxing zone, and 4th area, 5th area are homogenizing zone.
Thermoset elastomer materials are EVA substrate, cooperation cooperation toughened system, flame-retardant system, preventing aging system and lubrication
System is formed through physics and chemical modification, and tear resistance is not less than 15N/mm, and water resistance passes through 80 DEG C × 168 test requirements documents,
The hardness that insulate is not less than 90 shore A, and 3670M Ω km is not less than at 20 DEG C of insulation resistance constant, and insulation tensile strength is not less than
10MPa, elongation at break are not less than 300%, and 158 DEG C, 168h postcondition, variation in tensile strength are not more than ± 30%, fracture
Elongation change rate is not more than ± 30%, under the conditions of -40 DEG C, and elongation at break is not less than 30%, and 90 DEG C of whens are not less than 3.67,90
High temperature pressure impression is not more than 50% under the conditions of DEG C；It is shunk under the conditions of 130 DEG C and is not more than 4%, be not precipitated, is halogen-free, no red phosphorus,
Meet environmental protection and REACH requirement.
Conductor surface insulation layer accelerates to complete irradiation, 1.2~2.1MEV of irradiation energy, line 20mA by electronics after squeezing out
~26mA, energy ratio 1.2~2.0,30~120m/min of line speed.After it takes insulating layer sample preparation after irradiating, in 250 DEG C of items
Under part, 15min, elongation at break be not more than 100%, permanent set be not more than ± 25%
In step 3), the gasket for packing material of cable core is high temperature resistant, twisting type gasket for packing, and the main substrate of the gasket for packing is poly-
Propylene material；Various sizes of gasket for packing is placed for gap different in cable core；In addition, packing material insulation is at 125 DEG C
Under the conditions of, 240h, phenomena such as material can not deform, aging, decomposition, fragmentation, still keep original good form.
In step 4), oversheath material be using elastomer as substrate, cooperation toughened system, flame-retardant system, preventing aging system and
Lubricating system is changed to through physics and chemistry, has good flexibility, oil resistant, wear-resisting, anti-UV, hydrolysis, acid and alkali-resistance are fire-retardant excellent
More, it is not precipitated, is halogen-free, no red phosphorus, the weather of resistance to 720h, by single vertical combustion test, tearing toughness is not less than 20N/
mm.Under the conditions of 105 DEG C, 4h, the slippage power of cable still keeps 500N or more.
The protective cover material requirement of oversheath are as follows: high anti-tear, high abrasion, water-fast, weather-proof, resistance to -40 DEG C of low temperature, fire-retardant, environmentally friendly, resistance to
Chemical liquid, antiultraviolet.
The ground wire core insulating barrier, auxiliary core, signal wire core insulation layer material are as follows: electrical, resistance to -40 DEG C of high rigidity, height
Low temperature, ageing-resistant, fire-retardant and thermosetting property.
This Cable choosing copper is as conductive material；The metal monofilament that more are annealed is twisted to constitute conductor, metal monofilament
Resistivity is not more than 0.01701 Ω .mm2/ m: more of the metal monofilament is twisted into a branch of, and multi beam wire from-inner-to-outer is divided into
Multilayer；Adjacent two strands of metal monofilaments in every layer of metal monofilament mutually fit closely；In adjacent two layers metal monofilament, inside and outside layer
Metal monofilament fits closely；The direction of lay of outermost metal monofilament is left-hand, the direction of lay phase of adjacent two layers metal monofilament
Instead；16 times of the twisting pitch of outermost metal monofilament no more than twisted rear outer diameter.Insulating layer is wrapped in using mode is extruded
Outside conductor, increases fire retardant, antioxygen lubricant, toner etc. in EVA base-material and dissolve plasticizing, pelletizing.Using extruding machine and in machine
Match mold core, die sleeve on head.Wire core, signal core, inner sheath material accelerate to complete irradiation by electronics after squeezing out.Aluminum foil material
Wrapped overlap rate is not less than 20%.Wrapped no bottom pour ladle, without corrugation.Metal knitted shielding density 88%~90%.The circulation of selection
Cooling tube, material chemically-resistant liquid, soft pliable be bent, resistance to vehicle rolls, is ageing-resistant, resistance to -40 DEG C of low temperature and thermosetting property.Cable core
Twining package tape is non-woven fabrics, and wrapped overlap rate is not less than 20%.Increase filler, color masterbatch, plasticiser, softening in elastomeric base
Oil, SEBS, phase solvent, interleaving agent etc. dissolve plasticizing, pelletizing to protective cover material；Protective cover material is closely wrapped using squash type production method
It is rolled in outside cable core, forms restrictive coating, and cooling, constitute cable.
The manufacturing method of above-mentioned cable is described as follows:
In the selection of above-mentioned technological parameter, when selecting median and preferred value, an excellent rate of product reaches
99.4%, and when relaxing in value range, although the available product that conforms to quality requirements, an excellent rate mostly 98~
Between 99%.
As a result it detects, the characteristics of this cable includes:
1) charging time shortens
DC charging foreshortens to 15min, realizes that electric car is continued a journey 400 kilometers, the cable charging time shortens 90%.
2) cable purchase cost reduces: cable buying drop sheet 15%~20%.
3) cable weight mitigation, outer diameter are small
Outside diameter of cable control is in 40mm hereinafter, the 400A direct current charging cable finished cable weight decline 25% that compares.
4) temperature rise is small
It is full of in 15min, realizes that electric car is continued a journey 400 kilometers, temperature rise is no more than 35 DEG C.
5) high electrical
The product of inspection is detected through third party's pattern, actual measurement insulation, the volume resistivity actual measurement 10 of sheath15Ω .mm, is filled up
The world ISO, GB country new-energy automobile silicon rubber car high pressure 109Ω.mm。
6) high and low temperature resistance
Active force power supply meets 125 DEG C of operating conditions and uses.Meet -40 DEG C of low-temperature impacts, -40 DEG C of low temperature windings, -40 DEG C of low temperature
Tension test requirement.
7) fire retardancy test:
Meet the single burning of GB/T18380.12.
8) chemical-resistant reagent
Meet method one, the method two, battery acid test requirements document in ISO6722-1 standard simultaneously, meets working condition requirement.
9) resistance to vehicle rolls
This cable is rolled through vehicle reciprocal 3 times, is applied voltage tester, cooling cycle test, is met and reuse.
Claims (8)
1. a kind of hollow cable, it is characterized in that successively wrapping up wrapping layer and oversheath outside cable core；The cable core is soft by circulating cooling
Pipe and more cable twists are constituted, and the filling in the gap of each cable is polypropylene filling rope；Wrapped non-woven fabrics outside cable core
Band constitutes nonwoven layer, and inner sheath is also wrapped up outside nonwoven layer, the reticular structure that wire is constituted, netted knot are wrapped up outside inner sheath
Separation layer is wrapped up outside structure, and oversheath is wrapped up outside separation layer；
The radial section of the cable core is round；According to line footpath size, including the big function cable of line footpath, line footpath compared with functional line
Cable outside, is arranged successively；The immediate two functions cable of line footpath is located along the straight line across the center of circle into axial symmetry；Each line
Cable is respectively as follows:
A, accessory power supply core: auxiliary power supply line core insulation layer is wrapped up in by accessory power supply cable core conductor outsourcing and is constituted；
B, signal core group: insulating layer is wrapped up in by signal core conductor outsourcing and constitutes signal core, more signal cores and the twisted structure of filling
At signal core cable core；
E, it wire core: is constituted by wrapping up ground wire core insulating barrier outside ground wire core conductor；
F, it active force core: is made of the main line core conductor and master core insulating layer successively wrapped up outside hose；
G, the hollow pipe constituted circulating cooling hose: is squeezed out by thermoplastic elastic material；
The accessory power supply core, signal core group, active force core, wire core and circulating cooling hose respectively have even number root.
2. cable according to claim 1, it is characterized in that the wrapped overlap rate of the nonwoven fabric belts outside cable core is not less than 5mm,
Nonwoven fabric belts with a thickness of 0.1mm.
3. cable according to claim 1, it is characterized in that main line core conductor includes more strands, each strand is by metal
Monofilament is twisted to be constituted；Each strand prolongs the axis direction process of hose outside hose, and twisted wire outermost layer pitch is not more than 150mm.
4. cable according to claim 1, it is characterized in that the active force cable core conductor and ground wire core conductor core copper are led
The requirement of body is identical, they are made of multiply copper monofilament；The diameter range of copper monofilament is 0.1mm~0.2mm；Copper monofilament twists
18 times of the stranding distance of conjunction no more than twisted rear conductor diameter, 35 of stranding distance no more than strand outer diameter after being twisted of per share copper monofilament
Times；Copper monofilament is annealing naked copper monofilament, and the oxygen content of copper is not more than 0.001% in copper monofilament, and 20 DEG C of volume resistivities are not more than
0.01701Ω.mm2/m；
The accessory power supply cable core conductor, the requirement of signal core conductor are identical, they are all copper foil conductors, and copper foil conductor is copper foil
Docking is dredged be wound on fiber surface after, then with copper monofilament is twisted constitutes；Copper monofilament is annealing naked copper monofilament, and the oxygen of copper contains in copper monofilament
Amount is not more than 0.001%, and 20 DEG C of volume resistivities are not more than 0.01701 Ω .mm2/m。
5. cable according to claim 1, it is characterized in that wrapping layer is also enclosed with outside active force cable core conductor, outside wrapping layer
Master core insulating layer is wrapped up, what package was made of wire braid, metal tape or fiber braiding layer outside master core insulating layer adds
By force/explosion-proof layer.
6. cable according to claim 1, it is characterized in that being overlapped wrapped metal tape structure outside signal core cable core in signal core group
At metal wrapping layer, copper-wire braided layer is wrapped up outside metal wrapping layer and constitutes metal screen layer, copper wire is tinned copper wire, proof copper-wire braided
Layer surface also wrap jacket layer；
The wrapped lap wound packet of attaching most importance to of metal twining package tape, Duplication are not less than 25%；
The brass wire diameter of metal screen layer is not more than 0.15mm, count 80%~90%.
7. cable according to claim 1, it is characterized in that the requirement of the reticular structure outside the cable core are as follows: mesh density is not
Less than 80%, wire is tinned copper wire or bare copper wire, wherein 20 DEG C of resistivity of tinned copper wire≤0.01780 Ω mm2/m,
20 DEG C of resistivity of bare copper wire≤0.017241 Ω mm2/m；The elongation of reticular structure is not less than 15%；
Separation layer is that environmentally friendly non-absorbent material is constituted, and separation layer thickness is not more than 0.1mm.
8. cable according to claim 1, it is characterized in that the minimum 0.7mm of the nominal wall thickness of circulating cooling hose；Outer shield
It covers nominal thickness and is not less than 1.7mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822150711.3U CN209232433U (en) | 2018-12-19 | 2018-12-19 | A kind of hollow cable |
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| CN201822150711.3U CN209232433U (en) | 2018-12-19 | 2018-12-19 | A kind of hollow cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017808A (en) * | 2020-07-30 | 2020-12-01 | 航天瑞奇电缆有限公司 | Family charges with alternating-current charging stake flexible cable |
| CN112259290A (en) * | 2020-11-13 | 2021-01-22 | 江苏亨通电子线缆科技有限公司 | Light high-current-carrying tensile anti-torsion liquid-cooled charging cable for direct-current charging pile |
| CN116018656A (en) * | 2022-11-08 | 2023-04-25 | 远东电缆有限公司 | Liquid-cooled charging cable for new energy vehicles and its production process |
-
2018
- 2018-12-19 CN CN201822150711.3U patent/CN209232433U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017808A (en) * | 2020-07-30 | 2020-12-01 | 航天瑞奇电缆有限公司 | Family charges with alternating-current charging stake flexible cable |
| CN112259290A (en) * | 2020-11-13 | 2021-01-22 | 江苏亨通电子线缆科技有限公司 | Light high-current-carrying tensile anti-torsion liquid-cooled charging cable for direct-current charging pile |
| CN116018656A (en) * | 2022-11-08 | 2023-04-25 | 远东电缆有限公司 | Liquid-cooled charging cable for new energy vehicles and its production process |
| CN116018656B (en) * | 2022-11-08 | 2024-04-12 | 远东电缆有限公司 | Liquid-cooled charging cable for new energy vehicles and its production process |
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