CN104517678A - Cable for high-voltage connection inside electric automobile - Google Patents
Cable for high-voltage connection inside electric automobile Download PDFInfo
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- CN104517678A CN104517678A CN201510027579.5A CN201510027579A CN104517678A CN 104517678 A CN104517678 A CN 104517678A CN 201510027579 A CN201510027579 A CN 201510027579A CN 104517678 A CN104517678 A CN 104517678A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/0009—Details relating to the conductive cores
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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Abstract
The invention belongs to the technical field of cables, and particularly relates to a cable for high-voltage connection inside an electric automobile. The cable comprises a conductor, a wrapping strap wrapping the conductor, and an insulating layer covering the wrapping strap, wherein the insulating layer is made of TPE or TPU; the cable is characterized in that the conductor is formed by twisting a plurality of alloy wires; the wrapping strap comprises an inner layer strap and an outer layer strap positioned outside the inner strap; the inner layer strap is helically wound outside the conductor in the single direction at first pitches; the outer layer strap is helically wound outside the inner layer strap in the single direction at second pitches; the winding directions of the inner layer strap and the outer layer strap are opposite; each first pitch is equal to each second pitch; the first pitch is 3 to 6 times of the width of the inner layer strap; the material of the outer layer strap is the same as that of the inner layer strap. The cable has the following main benefits: the cable is more flexible, easier to bend, easier for construction, lighter in dead weight, lower in cost, more high-pressure-resistant, high in current, high-temperature-resistant and electrical-disturbance-resistant; the flame-retardant effect is better, the bending resistance is better, and the cable is safer to use.
Description
Technical field
The invention belongs to electric automobile and technical field of cables, especially relate to a kind of electric automobile internal high pressure cable for connecting, especially relate to the cable using aluminium alloy conductor.
Background technology
Automotive interior high pressure stube cable is a kind of for electric connection line, the primary high-voltage transmission for vehicle interior.Communication power supply flexible cable not only requires to have good flexibility, conveniently to lay in narrow space or when similar, and requires to have desirable anti-flammability, to adapt to higher fire-protection rating requirement.
The application number of our company is: 2014104424205 and name be called: " a kind of electric automobile inside high pressure stube cable with super soft aluminium conductor and preparation method thereof ", application number is: 2014104424313 and name be called: " there is electric automobile inside high pressure stube cable and the manufacture method of super soft aluminium conductor ", application number is: 2014104424328 and name be called: in " there is electric automobile inside two sheath high pressure stube cable and the manufacture method of ultra-soft aluminum conductor " patent, aluminium conductor is adopted to carry out alternative copper conductor, reach the object of joint Zhi Jiangben, but because the hardness of aluminium is not high, although can reach soft object, its tensile property is poor, easier creep, corrosion resistance and thermal expansion aspect not ideal enough.
The cable for car overwhelming majority adopts copper conductor both at home and abroad at present, and copper conductor itself is heavier, and flexibility is poor; Usually communication power supply flexible cable is adopted to carry out substituting use both at home and abroad.
Technical information about communication power supply flexible cable can be seen in disclosed Chinese patent literature, such as CN201247632Y recommends have that " communication power supply is with fire-retardant, fire-resistant, shielding anti-interference flexible cable ", CN201302849Y provides " a kind of communication power supply flame-retardant refractory flexible electric cable ", CN202230791Y discloses to be had " the flame-retardant crosslinking polyethylene insulated flexible cable of a kind of communication power supply ", CN202720953U introduces to be had " watt form drag combustion shielded flexible cable for communication power supply ", CN202855416U discloses " communication power supply fire-resistant shield flexible cable " and CN202601277U disclosed " a kind of communication power supply flame-retardant flexible electric cable ", etc..
Although communication power supply flexible cable of the prior art respectively has corresponding technique effect, there is following common defect: (1) due to using stranded thin copper wire as conductor, its softness can not meet the desired requirement.And due to pliability difference, bending radius is restricted, thus narrow space, to hinder by immovable object so the occasion at the place of talking in a roundabout way and so on is laid time, very easily affect speed of application, particularly in the occasion that the spaces such as vehicle are less; (2) use copper as the conductor of flexible cable owing to generally selecting under technology prejudice, thus not only there is the blindness of reasonable employment raw material aspect, and cause the manufacturing cost of flexible cable large; Its three, because copper density is large, therefore cable weight is heavier, and the cost thus not only in logistics transportation, storage link is high, and workmen's labour intensity is large in laid processes, to consume cost of labor high.
In view of above-mentioned prior art, still have necessity of improvement, the applicant has done useful design for this reason, defines technical scheme described below.
Summary of the invention
In order to solve the problem, the object of the invention is to disclose a kind of electric automobile internal high pressure cable for connecting, it realizes by the following technical solutions.
In first embodiment of the present invention, a kind of electric automobile internal high pressure cable for connecting, comprise conductor, be coated on the band outside conductor, by the insulating barrier overlayed on outside band, the material of described insulating barrier is 125 DEG C of environmentally-friendly flame retardant thermoplastic elastomer TPE, the rated operational voltage of described cable is 1500V, Long-term service temperature≤125 DEG C of cable, ambient temperature>=-40 DEG C during cable laying, cable at temperature is 175 DEG C continous-stable operating time>=6h, the minimum bending radius of cable is 5 times of the outside diameter of cable, it is characterized in that described conductor is is that the aluminum-alloy wire of 0.01 ~ 0.50mm is stranded by many diameters, the cross-sectional area of described conductor is 1.5 ~ 120mm
2, described band is made up of core band and the skin band be positioned at outside core band, core band with first segment apart from one direction spirally outside conductor, outer band with second section apart from one direction spirally outside core band, core band with outer be with around to contrary and first segment distance with second section apart from equal, first segment distance is 3 ~ 6 times of core band width, the material of core band to be thickness be waterstop or nonwoven fabrics or glass fiber tape or the mica tape of 0.15 ~ 0.30mm or thickness is the polyester belt of 0.03 ~ 0.10mm, the material of outer band is identical with the material of core band.
In second embodiment of the present invention, a kind of electric automobile internal high pressure cable for connecting, comprise conductor, be coated on the band outside conductor, by the insulating barrier overlayed on outside band, the material of described insulating barrier is 125 DEG C of environmentally-friendly flame retardant thermoplastic elastomers, the rated operational voltage of described cable is 1500V, Long-term service temperature≤125 DEG C of cable, ambient temperature>=-40 DEG C during cable laying, cable at temperature is 175 DEG C continous-stable operating time>=6h, the minimum bending radius of cable is 5 times of the outside diameter of cable, it is characterized in that described conductor is is that the aluminum-alloy wire of 0.01 ~ 0.50mm is stranded by many diameters, the cross-sectional area of described conductor is 1.5 ~ 120mm
2, described band is made up of core band and the skin band be positioned at outside core band, core band with first segment apart from one direction spirally outside conductor, outer band with second section apart from one direction spirally outside core band, core band with outer be with around to contrary and first segment distance with second section apart from equal, first segment distance is 3 ~ 6 times of core band width, the material of core band to be thickness be waterstop or nonwoven fabrics or glass fiber tape or the mica tape of 0.15 ~ 0.30mm or thickness is the polyester belt of 0.03 ~ 0.10mm, the material of outer band is identical with the material of core band.
A kind of electric automobile internal high pressure cable for connecting described in above-mentioned arbitrary embodiment, is characterized in that the material of described insulating barrier is for also can be any material of the prior art, as PE, halogen-free flameproof material etc.
A kind of electric automobile internal high pressure cable for connecting described in above-mentioned arbitrary embodiment, is characterized in that described conductor is made up of multilayer, forms in every layer by many aluminum-alloy wires are stranded, and direction of lay between adjacent layer is contrary; The twisting pitch of every layer is 10 ~ 25 times of aluminum-alloy wire diameter in this layer.
Further, a kind of electric automobile internal high pressure cable for connecting described in above-mentioned arbitrary embodiment, it is characterized in that described conductor is made up of multilayer, in adjacent layer: the twisting pitch of outer aluminum-alloy wire is larger than the twisting pitch of unlined aluminium B alloy wire, and the twisting pitch of outer aluminum-alloy wire is 2 ~ 4 times of the twisting pitch of unlined aluminium B alloy wire.
A kind of electric automobile internal high pressure cable for connecting described in above-mentioned arbitrary embodiment, is characterized in that the thickness of described insulating barrier is 0.5 ~ 3.0mm; More typical thickness is 0.5mm or 0.7mm or 0.8mm or 1.0mm or 1.5mm or 2.0mm or 3.0mm.
Therefore, the present invention has following main beneficial effect: more soft, more flexible, more easily construct, conduct oneself with dignity lighter, cost is lower, more can high pressure resistant, big current, high temperature resistant, anti-electrical Interference; Flame retardant effect is better, bending resistance is more excellent, it is safer to use.
Accompanying drawing explanation
Fig. 1 is the perspective view after one section of stripping of the invention process example 1.
Fig. 2 is the cross-sectional structure schematic diagram of embodiment 1.
Embodiment
embodiment 1
Ask for an interview Fig. 1 and Fig. 2, a kind of electric automobile internal high pressure cable for connecting, comprise conductor 1, be coated on the band 2 outside conductor 1, by the insulating barrier 3 overlayed on outside band 2, the material of described insulating barrier 3 is 125 DEG C of environmentally-friendly flame retardant thermoplastic elastomer TPE, the rated operational voltage of described cable is 1500V, Long-term service temperature≤125 DEG C of cable, ambient temperature>=-40 DEG C during cable laying, cable at temperature is 175 DEG C continous-stable operating time>=6h, the minimum bending radius of cable is 5 times of the outside diameter of cable, it is characterized in that described conductor 1 is is that the aluminum-alloy wire of 0.01 ~ 0.50mm is stranded by many diameters, the cross-sectional area of described conductor is 1.5 ~ 120mm
2, described band 2 is made up of core band 22 and the skin band 21 be positioned at outside core band, core band with first segment apart from one direction spirally outside conductor, outer band with second section apart from one direction spirally outside core band, core band with outer be with around to contrary and first segment distance with second section apart from equal, first segment distance is 3 ~ 6 times of core band width, the material of core band to be thickness be waterstop or nonwoven fabrics or glass fiber tape or the mica tape of 0.15 ~ 0.30mm or thickness is the polyester belt of 0.03 ~ 0.10mm, the material of outer band is identical with the material of core band.
embodiment 2
Please refer to Fig. 1 and Fig. 2, a kind of electric automobile internal high pressure cable for connecting, comprise conductor 1, be coated on the band 2 outside conductor 1, by the insulating barrier 3 overlayed on outside band 2, the material of described insulating barrier 3 is 125 DEG C of environmentally-friendly flame retardant thermoplastic elastomers, the rated operational voltage of described cable is 1500V, Long-term service temperature≤125 DEG C of cable, ambient temperature>=-40 DEG C during cable laying, cable at temperature is 175 DEG C continous-stable operating time>=6h, the minimum bending radius of cable is 5 times of the outside diameter of cable, it is characterized in that described conductor 1 is is that the aluminum-alloy wire of 0.01 ~ 0.50mm is stranded by many diameters, the cross-sectional area of described conductor is 1.5 ~ 120mm
2, described band 2 is made up of core band 22 and the skin band 21 be positioned at outside core band, core band with first segment apart from one direction spirally outside conductor, outer band with second section apart from one direction spirally outside core band, core band with outer be with around to contrary and first segment distance with second section apart from equal, first segment distance is 3 ~ 6 times of core band width, the material of core band to be thickness be waterstop or nonwoven fabrics or glass fiber tape or the mica tape of 0.15 ~ 0.30mm or thickness is the polyester belt of 0.03 ~ 0.10mm, the material of outer band is identical with the material of core band.
A kind of electric automobile internal high pressure cable for connecting described in above-mentioned arbitrary embodiment, is characterized in that described conductor is made up of multilayer, forms in every layer by many aluminum-alloy wires are stranded, and direction of lay between adjacent layer is contrary; The twisting pitch of every layer is 10 ~ 25 times of aluminum-alloy wire diameter in this layer.
Further, a kind of electric automobile internal high pressure cable for connecting described in above-mentioned arbitrary embodiment, it is characterized in that described conductor is made up of multilayer, in adjacent layer: the twisting pitch of outer aluminum-alloy wire is larger than the twisting pitch of unlined aluminium B alloy wire, and the twisting pitch of outer aluminum-alloy wire is 2 ~ 4 times of the twisting pitch of unlined aluminium B alloy wire.
A kind of electric automobile internal high pressure cable for connecting described in above-mentioned arbitrary embodiment, is characterized in that the thickness of described insulating barrier is 0.5 ~ 3.0mm; More typical thickness is 0.5mm or 0.7mm or 0.8mm or 1.0mm or 1.5mm or 2.0mm or 3.0mm.
A kind of electric automobile internal high pressure cable for connecting described in above-mentioned arbitrary embodiment, is characterized in that the model of described aluminum-alloy wire is 8A07 or 8030 or LHA1 or LHA2; When the tensile strength of described aluminum-alloy wire is 120 ~ 155MPa, minimum elongation at break is 8%, 20 DEG C, maximum resistivity is 29.7n Ω m.
A kind of electric automobile internal high pressure cable for connecting described in above-mentioned arbitrary embodiment, is characterized in that described aluminum-alloy wire is made up of the raw material of following weight portion: silicon: 0.03 ~ 0.08 part, iron: 0.2 ~ 0.42 part, copper: 0.2 ~ 0.3 part, magnesium: 0.06 ~ 0.2 part, zirconium: 0.1 ~ 0.3 part, zinc: 0.01 ~ 0.04 part, boron: 0.01 ~ 0.03 part, platinum: 0.01 ~ 0.05 part, titanium: 0.01 ~ 0.1 part, tungsten: 0.01 ~ 0.05 part, manganese: 0.01 ~ 0.03 part, surplus is aluminium; Wherein, magnesium and silicon mass ratio are (1.50 ~ 2.00): 1; When the tensile strength minimum value of described aluminum-alloy wire is 305MPa, minimum elongation at break is 3.8%, 20 DEG C, maximum resistivity is 32.5n Ω m, the max line coefficient of expansion is 2.15 × 10
-5(1/ DEG C), 20 DEG C time maximal density be 2.85g/cm
3.
In aluminum-alloy wire described above, zirconium and aluminium form three calorize zirconium compounds, make recrystal grain in aluminium alloy obtain effective refinement, magnesium silicon ratio (1.50 ~ 2.00): 1, make in aluminium alloy, to define silication magnesium dioxide hardening constituent, when the subsequent heat treatment same for aluminium alloy, after tested compared with this intensity of aluminum alloy and the magnesium silicon ratio aluminium alloy not within the scope of this, intensity improves 30 ~ 40MPa, wherein magnesium silicon about improves 30MPa than intensity during 1.50:1, magnesium silicon about improves 31MPa than intensity during 2.00:1, magnesium silicon improves 50MPa than intensity during 1.80:1, magnesium silicon ratio is from 1.50:1 to 1.80:1, intensity increases journey ascendant trend, magnesium silicon ratio is from 2.00:1 to 1.80:1, intensity increases journey ascendant trend, described magnesium silicon ratio refers to mass ratio, in aluminum-alloy wire described above, adding of platinum makes resistivity greatly decline.
Applicant has done detailed detection for the aluminum-alloy wire of following formula, and described aluminum-alloy wire is made up of the raw material of following weight portion: silicon: 0.05 part, iron: 0.2 ~ 0.42 part, copper: 0.2 ~ 0.3 part, magnesium: 0.09 part, zirconium: 0.1 ~ 0.3 part, zinc: 0.01 ~ 0.04 part, boron: 0.01 ~ 0.03 part, platinum: 0.01 ~ 0.05 part, titanium: 0.01 ~ 0.1 part, tungsten: 0.01 ~ 0.05 part, manganese: 0.01 ~ 0.03 part, surplus is aluminium; Namely magnesium and silicon mass ratio are 1.8:1; When the tensile strength minimum value of the aluminum-alloy wire recorded is 337MPa, minimum elongation at break is 4.6%, 20 DEG C, maximum resistivity is 30.2n Ω m, the max line coefficient of expansion is 2.13 × 10-5(1/ DEG C), 20 DEG C time maximal density be 2.65g/cm
3.
Conductor in cable of the present invention, have excellent acidproof, alkaline-resisting, water-fast and antioxygenic property, maintaining requirement is extremely low, does not worry oxidation and etching problem; And there is extremely strong heat resistance, expand and be contracted within the scope of-100 ~ 300 DEG C substantially not by the impact of temperature.
Certainly, as improving further, in the present invention, in above-mentioned arbitrary embodiment, the material of belting layer can also be wire as copper cash or aluminium wire or aluminum-alloy wire or aluminum-magnesium alloy wire, core band adopts the mode of knotting to be connected with outer band infall, conductor and many aluminum-alloy wires can be stranded, also can be parallel placement, production can be made so more convenient, meanwhile, conductor binding constraint is made to be integrated; Do not scatter during alternating bending.
In the present invention, owing to employing aluminum-alloy wire in conductor, aluminum-alloy wire can accomplish than aluminium wire diameter is thinner but intensity is higher, therefore can stranded production more quickly, twisting speed is 3 ~ 5 times of aluminium wire, is 2 ~ 3 times of copper wire; Therefore cable more softly, more flexible, easier lays in narrow space, more can high pressure resistant, resistance to high current capacity, high temperature resistant, more acidproof/alkali/aqueous corrosion, can not be oxidized; Have less thermal coefficient of expansion, after making cable, expand and to be contracted within the scope of-100 ~ 300 DEG C substantially not by the impact of temperature, what can keep with insulating barrier is integrated; Creep-resistant property is better.In the present invention, cable insulation adopts 125 DEG C of environmentally-friendly flame retardant thermoplastic elastomer TPE or TPU, effectively can play fire retardation, use in the narrow space of electric automobile, bends freely, has no insulating barrier cracking phenomena and occurs.
Thermoplastic elastomer (TPE) TPE(Thermoplastic Elastomer in the present invention) be a kind of high resiliency with rubber, high strength, high resilience, having again can the material of feature of injection molding; The 125 DEG C of environmentally-friendly flame retardant thermoplastic elastomer TPE used in the application can buy in companies such as LASTO, POLYONE.
TPU (Thermoplastic polyurethanes) name is called TPUE rubber; The 125 DEG C of environmentally-friendly flame retardant thermoplastic elastomers used in the application can buy in the company such as LASTO, POLYONE, SK, Changshu Zhong Lian new material Co., Ltd.The TPU used in the application water resistance under muddiness is good, in 1 ~ 2 year, obvious hydrolysis can not occur; In addition, use the cable in the application and do compatibility test with kerosene, gasoline, hydraulic oil, machine oil, lubrication wet goods, other parts in cable all being peeled off, only surplus insulating barrier, through the immersion of 90 days, does not find mutual erosion with oil product.
Applicant not only used TPE, TPU of the prior art, also developed a kind of halogen-free flame-retardant thermoplastic elastomer electrical cable material, for the insulating material of the application, it is characterized in that described halogen-free flame-retardant thermoplastic elastomer electrical cable material is made up of the raw material of following weight portion: BS SBS:30 part; Poly-(2-ethyl-6 n-pro-pyls-Isosorbide-5-Nitrae-phenylene) ether: 40 parts; Polyethylene or polypropylene: 38 parts; Butylene: 25 parts; The model that is produced from commercially available Kelamayi is 4010 naphthenic base white oils: 15 parts; Tricresyl phosphate: 30 parts; Tissuemat E: 3 parts; Model is the cable jacket antioxidant of 1010: 0.5 part; Commercially available model is UV-360 ultraviolet-resistant absorbent: 0.8 part.
After tested, above-mentioned halogen flame-retardant thermoplastic elastomer electrical cable material density is 1.025g/cm
-3, melt flow rate (MFR) is 11.8 g/10min, shore hardness is 83, hot strength is MPa, by, hot strength rate of change, to be 14.4%, 135 DEG C × 168h ageing test be that 2.6%, 100 DEG C of thermal deformations are 1.8%, tear-proof value is 25 N/mm to elongation at break, be 28%, 20 DEG C specific insulations by, (0/30)-40 DEG C of impact brittle test by, oxygen index by the test of 135 DEG C × 1h cracking resistance, cracking resistance (130 DEG C, load 10kg, 3mm sample) be 2.6 × 10
16Ω m, dielectric strength is 32 MV/m, flame retardant rating is VW-1, the thermal contraction of 130 DEG C × 1h cable is 0.2%, 45g/L oxalic acid solution, (23 ± 5) oC, the acidproof rear elongation change rate of 168h is-2.3%, 40g/L sodium hydroxide solution, (23 ± 5) oC, the alkaline-resisting rear change rate of strength of 168h is 1.2%, 40g/L sodium hydroxide solution, (23 ± 5) oC, the alkaline-resisting rear elongation change rate of 168h is-4.2%, (80 ± 2) oC, 7 × 24h heat-proof water change rate of strength is 0.04%, (80 ± 2) oC, 7 × 24h heat-proof water elongation change rate is 0.35%, (85 ± 2) oC, (85 ± 2) % humidity, 3000h is aging, and rear elongation change rate is-1.8%, and when cable of the present invention is produced, the maximum stable process velocity of insulating barrier reaches on 120 ms/min, and property indices all reaches outstanding grade.
Cable in the present invention is placed on acid pH value is 5-6, alkaline ph value is in the aqueous solution of 8-9, still can normally uses after 30 days.
Therefore, the present invention has following main beneficial effect: more soft, more flexible, more easily construct, conduct oneself with dignity lighter, cost is lower, more can high pressure resistant, big current, high temperature resistant, anti-electrical Interference; Flame retardant effect is better, bending resistance is more excellent, it is safer to use.
The present invention is not limited to above-mentioned preferred forms, and should be appreciated that design of the present invention can be implemented to use by other various forms, they drop in protection scope of the present invention equally.
Claims (8)
1. an electric automobile internal high pressure cable for connecting, comprise conductor, be coated on the band outside conductor, by the insulating barrier overlayed on outside band, the material of described insulating barrier is 125 DEG C of environmentally-friendly flame retardant thermoplastic elastomer TPE, the rated operational voltage of described cable is 1500V, Long-term service temperature≤125 DEG C of cable, ambient temperature>=-40 DEG C during cable laying, cable at temperature is 175 DEG C continous-stable operating time>=6h, the minimum bending radius of cable is 5 times of the outside diameter of cable, it is characterized in that described conductor is is that the aluminum-alloy wire of 0.01 ~ 0.50mm is stranded by many diameters, the cross-sectional area of described conductor is 1.5 ~ 120mm
2, described band is made up of core band and the skin band be positioned at outside core band, core band with first segment apart from one direction spirally outside conductor, outer band with second section apart from one direction spirally outside core band, core band with outer be with around to contrary and first segment distance with second section apart from equal, first segment distance is 3 ~ 6 times of core band width, the material of core band to be thickness be waterstop or nonwoven fabrics or glass fiber tape or the mica tape of 0.15 ~ 0.30mm or thickness is the polyester belt of 0.03 ~ 0.10mm, the material of outer band is identical with the material of core band, the model of described aluminum-alloy wire is 8A07 or 8030 or LHA1 or LHA2, and when the tensile strength of described aluminum-alloy wire is 120 ~ 155MPa, minimum elongation at break is 8%, 20 DEG C, maximum resistivity is 29.7n Ω m, or described aluminum-alloy wire is made up of the raw material of following weight portion: silicon: 0.03 ~ 0.08 part, iron: 0.2 ~ 0.42 part, copper: 0.2 ~ 0.3 part, magnesium: 0.06 ~ 0.2 part, zirconium: 0.1 ~ 0.3 part, zinc: 0.01 ~ 0.04 part, boron: 0.01 ~ 0.03 part, platinum: 0.01 ~ 0.05 part, titanium: 0.01 ~ 0.1 part, tungsten: 0.01 ~ 0.05 part, manganese: 0.01 ~ 0.03 part, surplus is aluminium, wherein, magnesium and silicon mass ratio are (1.50 ~ 2.00): 1, when the tensile strength minimum value of described aluminum-alloy wire is 305MPa, minimum elongation at break is 3.8%, 20 DEG C, maximum resistivity is 32.5n Ω m, the max line coefficient of expansion is 2.15 × 10
-5(1/ DEG C), 20 DEG C time maximal density be 2.85g/cm
3.
2. an electric automobile internal high pressure cable for connecting, comprise conductor, be coated on the band outside conductor, by the insulating barrier overlayed on outside band, the material of described insulating barrier is 125 DEG C of environmentally-friendly flame retardant thermoplastic elastomers, the rated operational voltage of described cable is 1500V, Long-term service temperature≤125 DEG C of cable, ambient temperature>=-40 DEG C during cable laying, cable at temperature is 175 DEG C continous-stable operating time>=6h, the minimum bending radius of cable is 5 times of the outside diameter of cable, it is characterized in that described conductor is is that the aluminum-alloy wire of 0.01 ~ 0.50mm is stranded by many diameters, the cross-sectional area of described conductor is 1.5 ~ 120mm
2, described band is made up of core band and the skin band be positioned at outside core band, core band with first segment apart from one direction spirally outside conductor, outer band with second section apart from one direction spirally outside core band, core band with outer be with around to contrary and first segment distance with second section apart from equal, first segment distance is 3 ~ 6 times of core band width, the material of core band to be thickness be waterstop or nonwoven fabrics or glass fiber tape or the mica tape of 0.15 ~ 0.30mm or thickness is the polyester belt of 0.03 ~ 0.10mm, the material of outer band is identical with the material of core band, the model of described aluminum-alloy wire is 8A07 or 8030 or LHA1 or LHA2, and when the tensile strength of described aluminum-alloy wire is 120 ~ 155MPa, minimum elongation at break is 8%, 20 DEG C, maximum resistivity is 29.7n Ω m, or described aluminum-alloy wire is made up of the raw material of following weight portion: silicon: 0.03 ~ 0.08 part, iron: 0.2 ~ 0.42 part, copper: 0.2 ~ 0.3 part, magnesium: 0.06 ~ 0.2 part, zirconium: 0.1 ~ 0.3 part, zinc: 0.01 ~ 0.04 part, boron: 0.01 ~ 0.03 part, platinum: 0.01 ~ 0.05 part, titanium: 0.01 ~ 0.1 part, tungsten: 0.01 ~ 0.05 part, manganese: 0.01 ~ 0.03 part, surplus is aluminium, wherein, magnesium and silicon mass ratio are (1.50 ~ 2.00): 1, when the tensile strength minimum value of described aluminum-alloy wire is 305MPa, minimum elongation at break is 3.8%, 20 DEG C, maximum resistivity is 32.5n Ω m, the max line coefficient of expansion is 2.15 × 10
-5(1/ DEG C), 20 DEG C time maximal density be 2.85g/cm
3.
3. according to a kind of electric automobile internal high pressure cable for connecting according to claim 1 or claim 2, it is characterized in that described conductor is made up of multilayer, form by many aluminum-alloy wires are stranded in every layer, and direction of lay between adjacent layer is contrary; The twisting pitch of every layer is 10 ~ 25 times of aluminum-alloy wire diameter in this layer.
4. a kind of electric automobile internal high pressure cable for connecting according to claim 3, it is characterized in that described conductor is made up of multilayer, in adjacent layer: the twisting pitch of outer aluminum-alloy wire is larger than the twisting pitch of unlined aluminium B alloy wire, and the twisting pitch of outer aluminum-alloy wire is 2 ~ 4 times of the twisting pitch of unlined aluminium B alloy wire.
5. a kind of electric automobile internal high pressure cable for connecting according to claim 4, is characterized in that the thickness of described insulating barrier is 0.5 ~ 3.0mm.
6., according to claim 1 or claim 2 or a kind of electric automobile internal high pressure cable for connecting according to claim 4, it is characterized in that the thickness of described insulating barrier is 0.5mm or 0.7mm or 0.8mm or 1.0mm or 1.5mm or 2.0mm or 3.0mm.
7. a kind of electric automobile internal high pressure cable for connecting according to claim 6, is characterized in that described aluminum-alloy wire is made up of the raw material of following weight portion: silicon: 0.05 part, iron: 0.2 ~ 0.42 part, copper: 0.2 ~ 0.3 part, magnesium: 0.09 part, zirconium: 0.1 ~ 0.3 part, zinc: 0.01 ~ 0.04 part, boron: 0.01 ~ 0.03 part, platinum: 0.01 ~ 0.05 part, titanium: 0.01 ~ 0.1 part, tungsten: 0.01 ~ 0.05 part, manganese: 0.01 ~ 0.03 part, surplus is aluminium; Namely magnesium and silicon mass ratio are 1.8:1.
8. an electric automobile internal high pressure cable for connecting, comprise conductor, be coated on the band outside conductor, by the insulating barrier overlayed on outside band, the material of described insulating barrier is halogen-free flame-retardant thermoplastic elastomer electrical cable material, the rated operational voltage of described cable is 1500V, Long-term service temperature≤125 DEG C of cable, ambient temperature>=-40 DEG C during cable laying, cable at temperature is 175 DEG C continous-stable operating time>=6h, the minimum bending radius of cable is 5 times of the outside diameter of cable, it is characterized in that described conductor is is that the aluminum-alloy wire of 0.01 ~ 0.50mm is stranded by many diameters, the cross-sectional area of described conductor is 1.5 ~ 120mm
2, described band is made up of core band and the skin band be positioned at outside core band, core band with first segment apart from one direction spirally outside conductor, outer band with second section apart from one direction spirally outside core band, core band with outer be with around to contrary and first segment distance with second section apart from equal, first segment distance is 3 ~ 6 times of core band width, the material of core band to be thickness be waterstop or nonwoven fabrics or glass fiber tape or the mica tape of 0.15 ~ 0.30mm or thickness is the polyester belt of 0.03 ~ 0.10mm, the material of outer band is identical with the material of core band, the model of described aluminum-alloy wire is 8A07 or 8030 or LHA1 or LHA2, and when the tensile strength of described aluminum-alloy wire is 120 ~ 155MPa, minimum elongation at break is 8%, 20 DEG C, maximum resistivity is 29.7n Ω m, or described aluminum-alloy wire is made up of the raw material of following weight portion: silicon: 0.03 ~ 0.08 part, iron: 0.2 ~ 0.42 part, copper: 0.2 ~ 0.3 part, magnesium: 0.06 ~ 0.2 part, zirconium: 0.1 ~ 0.3 part, zinc: 0.01 ~ 0.04 part, boron: 0.01 ~ 0.03 part, platinum: 0.01 ~ 0.05 part, titanium: 0.01 ~ 0.1 part, tungsten: 0.01 ~ 0.05 part, manganese: 0.01 ~ 0.03 part, surplus is aluminium, wherein, magnesium and silicon mass ratio are (1.50 ~ 2.00): 1, when the tensile strength minimum value of described aluminum-alloy wire is 305MPa, minimum elongation at break is 3.8%, 20 DEG C, maximum resistivity is 32.5n Ω m, the max line coefficient of expansion is 2.15 × 10
-5(1/ DEG C), 20 DEG C time maximal density be 2.85g/cm
3, described halogen-free flame-retardant thermoplastic elastomer electrical cable material, is made up of the raw material of following weight portion: BS SBS:30 part, poly-(2-ethyl-6 n-pro-pyls-Isosorbide-5-Nitrae-phenylene) ether: 40 parts, polyethylene or polypropylene: 38 parts, butylene: 25 parts, the model that is produced from commercially available Kelamayi is 4010 naphthenic base white oils: 15 parts, tricresyl phosphate: 30 parts, Tissuemat E: 3 parts, model is the cable jacket antioxidant of 1010: 0.5 part, commercially available model is UV-360 ultraviolet-resistant absorbent: 0.8 part.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610254944.0A CN105931706A (en) | 2015-01-20 | 2015-01-20 | High voltage cable used for electric power new energy transmission |
| CN201510027579.5A CN104517678B (en) | 2015-01-20 | 2015-01-20 | A kind of electric automobile internal high pressure cable for connecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027579.5A CN104517678B (en) | 2015-01-20 | 2015-01-20 | A kind of electric automobile internal high pressure cable for connecting |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610254870.0A Division CN105702372A (en) | 2015-01-20 | 2015-01-20 | Cable for high-voltage connection |
| CN201610254869.8A Division CN105741957A (en) | 2015-01-20 | 2015-01-20 | Aluminium alloy wire for cable, halogen-free flame-retardant thermoplastic elastomer cable material, and cable |
| CN201610255281.4A Division CN105788713A (en) | 2015-01-20 | 2015-01-20 | High-voltage cable |
| CN201610254944.0A Division CN105931706A (en) | 2015-01-20 | 2015-01-20 | High voltage cable used for electric power new energy transmission |
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| CN104517678A true CN104517678A (en) | 2015-04-15 |
| CN104517678B CN104517678B (en) | 2016-08-24 |
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| CN201610254944.0A Pending CN105931706A (en) | 2015-01-20 | 2015-01-20 | High voltage cable used for electric power new energy transmission |
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Cited By (3)
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| CN105206326A (en) * | 2015-10-15 | 2015-12-30 | 中天科技装备电缆有限公司 | Cable conductor and optical cable conductor resistant to bending and not prone to breaking and manufacturing method thereof |
| CN110459346A (en) * | 2019-09-03 | 2019-11-15 | 深圳市金泰科环保线缆有限公司 | A kind of bend resistance wire rod and its processing method |
| CN110556197A (en) * | 2018-05-30 | 2019-12-10 | 矢崎总业株式会社 | insulated cable |
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| JP7031755B2 (en) * | 2018-10-04 | 2022-03-08 | 株式会社オートネットワーク技術研究所 | Insulated wire |
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Also Published As
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| CN105931706A (en) | 2016-09-07 |
| CN104517678B (en) | 2016-08-24 |
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Address after: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang town southeast of Changshu Development Zone, No. 8 Chang kunlu Patentee after: Jiangsu Zhongli group Limited by Share Ltd Address before: 215542 Jiangsu city of Suzhou province Changshou City Shajiabang town southeast of Changshu Development Zone, No. 8 Chang kunlu Patentee before: Zhongli Science & Technology Group Co., Ltd. |
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Application publication date: 20150415 Assignee: CHANGSHU LIXING PHOTOELECTRIC SCIENCE & TECHNOLOGY CO., LTD. Assignor: Jiangsu Zhongli group Limited by Share Ltd Contract record no.: 2018320000162 Denomination of invention: Cable for high-voltage connection inside electric automobile Granted publication date: 20160824 License type: Common License Record date: 20180911 |