CN117558496A - Wear-resistant and heat-resistant charging cable for new energy automobile and preparation method thereof - Google Patents
Wear-resistant and heat-resistant charging cable for new energy automobile and preparation method thereof Download PDFInfo
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- CN117558496A CN117558496A CN202311551985.2A CN202311551985A CN117558496A CN 117558496 A CN117558496 A CN 117558496A CN 202311551985 A CN202311551985 A CN 202311551985A CN 117558496 A CN117558496 A CN 117558496A
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- 239000004743 Polypropylene Substances 0.000 claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 39
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- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 32
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 25
- 229920001155 polypropylene Polymers 0.000 claims abstract description 25
- 229920000728 polyester Polymers 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 18
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Classifications
-
- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/02—Stranding-up
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- 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
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Insulated Conductors (AREA)
Abstract
The invention relates to the technical field of cables, in particular to a wear-resistant and heat-resistant charging cable for a new energy automobile and a preparation method thereof, wherein the charging cable material comprises the following raw material components in parts by weight: 10-25 parts of PVC (polyvinyl chloride), 15-28 parts of EVA (ethylene vinyl acetate) copolymer, 2-5 parts of PP (polypropylene), 10-20 parts of XLPE (cross-linked polyethylene), 55-75 parts of filler, 5-10 parts of polyester material, 1-2 parts of antioxidant, 1.0-2.5 parts of lubricant and 1-5 parts of flame retardant. The cable material obtained by the invention has the performances of higher wear resistance, heat resistance, elongation, insulativity and the like, and the service life of the cable is greatly prolonged.
Description
Technical Field
The invention relates to a charging cable and a preparation method thereof, in particular to a wear-resistant and heat-resistant charging cable for a new energy automobile and a preparation method thereof, and belongs to the technical field of cables.
Background
Along with the fact that electric vehicles gradually become representatives of new energy vehicles, the requirements of charging cables of the electric vehicles matched with the electric vehicles are continuously increasing, and the charging cables are used in a large amount because the new energy vehicles need to be charged frequently, and the cables need to be dragged frequently in the charging process.
When the cable is dragged, friction is generated between the cable and the ground, the cable is damaged to different degrees, once the insulating skin is damaged, the internal wires are exposed in the air, and then the circuit is broken, the insulating skin is melted under the condition of overhigh temperature, the service life of the cable is influenced, short circuit can occur under the serious condition, and fire disaster is caused or certain economic loss is caused;
in addition, in the dragging process, as the wires inside the cable are subjected to different degrees of tension by pulling the cable, once the tension is too large, the wires are deformed to different degrees, so that the wires are broken in the frequent bending process, and poor contact is caused, and the service life of the cable is seriously influenced.
Accordingly, there is a need for an improvement in charging cables to solve the above-described problems.
Disclosure of Invention
In order to achieve the above purpose, the main technical scheme adopted by the invention comprises the following steps:
the preparation method of the wear-resistant and heat-resistant charging cable for the new energy automobile comprises the following raw material components in parts by weight:
10-25 parts of PVC (polyvinyl chloride), 15-28 parts of EVA (ethylene vinyl acetate) copolymer, 2-5 parts of PP (polypropylene), 10-20 parts of XLPE (cross-linked polyethylene), 55-75 parts of filler, 5-10 parts of polyester material, 1-2 parts of antioxidant, 1.0-2.5 parts of lubricant and 1-5 parts of flame retardant;
the method comprises the following steps:
s01, obtaining a wire through a twisting process;
s02, coating PVC polyvinyl chloride on the wire through a radiation crosslinking process and performing UV curing to form an insulating layer;
s03, forming a moisture-proof layer on the outer surface of the insulating layer in the second step through a crosslinking process by using XLPE crosslinked polyethylene;
s04, winding the two moisture-proof layers in the third step, forming a heat-resistant filling layer through a crosslinking process, and embedding a reticular shielding conductor layer in the middle of the wear-resistant firmware;
s05, sleeving the buffer spring on the heat-resistant filling layer in the fourth step, forming an outer sheath fixing layer through a crosslinking process, and curing through UV;
s06, coating PP polypropylene on the outer side surface of the wear-resistant firmware and curing to form a wear-resistant layer;
s07, pre-burying two circles of reinforcing rings in the fixed layer before solidification in the step five, and pre-burying a T-shaped resistance block on the wear-resistant firmware between the two circles of reinforcing rings in the fixed layer;
s08, preparing the wear-resistant and heat-resistant cable after curing;
the antioxidant is an antioxidant 1010, the lubricant is a mixture of butyl stearate and polyethylene wax, the flame retardant is a mixture of antimony trioxide and magnesium hydroxide, the reticular shielding conductor layer is a reticular structure wrapped in the heat-resistant filling layer, the filling material is a TPE (thermoplastic elastomer) high-molecular alloy material, PU (polyurethane) and a TPU (thermoplastic polyurethane) elastomer, the TPE high-molecular alloy material is aluminum hydroxide or magnesium hydroxide, and the TPU thermoplastic polyurethane elastomer is a polyester polyurethane elastomer or polyether polyurethane elastomer;
PVC polyvinyl chloride has the advantages of being difficult to burn, ageing-resistant, oil-resistant, chemical-resistant, impact-resistant and easy to color, has good wear resistance, can resist oil, acid, alkali, bacteria, moisture, sunlight irradiation and the like as a wire cable sheath, has self-extinguishing performance on the action of flame, and can resist high temperature up to 105 ℃, wherein the volume resistivity rho=1010-1012 Ω·m, the dielectric loss tangent tg delta (50 Hz) =0.05-0.15, the dielectric constant epsilon=4-8 (50 Hz), and the EVA ethylene-vinyl acetate copolymer has good elasticity, low-temperature flexibility, chemical-resistant and weather resistance, is copolymerized with LDPE low-density polyethylene, and can improve the environmental cracking resistance, impact resistance, soft hardness and adhesion between conductors and insulators of LDPE;
the PP polypropylene has excellent mechanical strength, the softening temperature is highest in the thermoplastic resin, and the low temperature resistance and the aging resistance are good; only slightly inferior in optical rotation resistance, but can be improved by adding a stabilizer through copolymerization,
XLPE crosslinked polyethylene has excellent ageing resistance and super heat resistance deformation, so that the crosslinked polyethylene cable can allow large current to pass under the conditions of normal operation temperature of 90 ℃, short-time fault of 130 ℃ and short circuit of 250 ℃, polyethylene molecules are changed into a three-dimensional network structure from a two-dimensional structure through crosslinking reaction, the chemical and physical properties of the material are correspondingly enhanced, and the heat resistance and pressure resistance are improved;
the filler is TPE high-molecular alloy material, PU polyurethane and TPU thermoplastic polyurethane elastomer, the TPE high-molecular alloy material is aluminum hydroxide or magnesium hydroxide, the TPE high-molecular alloy material has general plastic processing property and high-molecular alloy material similar to cross-linked rubber property, and double bonds in the SEBS molecular structure are saturated, so that the TPE high-molecular alloy material has the ageing-resistant characteristic, is safe and nontoxic, good in stability, soft in texture, attractive in appearance, comfortable in handfeel, good in rebound resilience and strong in wet skid resistance, and has the characteristic of being recyclable, so that the TPE high-molecular alloy material has the characteristic of environmental protection;
the PU polyurethane has good toughness, strength, resistance to erosion, chemical corrosion and shock resistance, can keep softness within the range of-550 to +900C, has good radiation resistance and is suitable for sealing, and the wear resistance is four times better than that of polyethylene and polyvinyl chloride;
the TPU thermoplastic polyurethane elastomer is polyester polyurethane elastomer or polyether polyurethane elastomer, products with different hardness can be obtained by changing the proportion of each reaction component of the TPU thermoplastic polyurethane elastomer, and the products still keep good elasticity and wear resistance along with the increase of the hardness, the elastic modulus of rubber is usually 1-10 Mpa, the TPU thermoplastic polyurethane elastomer is 10-1000 Mpa, and the plastic has high elasticity in the whole hardness range of 1000-10000 Mpa;
the wear-resistant and heat-resistant charging cable comprises a wire and an insulating layer coated on the wire, wherein a moisture-proof layer is arranged on the outer side surface of the insulating layer, a heat-resistant filling layer is coated on the outer side surface of the moisture-proof layer, a reticular shielding conductor layer is fixedly arranged in the middle of the heat-resistant filling layer, a fixing layer is fixedly arranged on the outer side surface of the heat-resistant filling layer, a buffer spring is wound on the outer side surface of the heat-resistant filling layer, and the buffer spring is not in contact with the heat-resistant filling layer;
the wire is coated with the insulating layer and the moisture-proof layer, the insulating layer has a good insulating effect on the wire, and when the wire is charged, a large amount of heat is generated due to overlarge output power, and the heat is obtained by Joule's law;
Q＝I 2 ·R·T；
wherein I is current, R is resistance, T is charging time;
the wires are separated by the insulating layer, and the moisture-proof layer is arranged on the outer surface of the insulating layer, so that the wires can be protected, short circuit of the wires is prevented, and the service life of the cable is prolonged;
because the cable is required to be dragged in the charging process, the wire is subjected to different degrees of tension along with the dragging of the insulating leather, and the cable is bent in the dragging process, the wire is repeatedly bent, the wire is broken once the cable is extruded to be too large in amplitude, the short circuit occurs, the buffer spring is wound on the outer side surface of the heat-resistant filling layer, and the buffer spring is arranged between the inner reinforcing ring and the outer reinforcing ring, so that the buffer spring has a certain buffer function, the cable can be prevented from being excessively deformed, the tension applied to the wire can be reduced, and the service life of the cable is greatly prolonged;
the wear-resisting fixing piece is fixedly arranged on the outer side face of the fixing layer, the T-shaped resistance block is fixedly arranged in the middle of the wear-resisting fixing piece, and the T-shaped resistance block is fixedly arranged in the fixing layer.
Preferably, the mesh-shaped shielding conductor layer is formed by spirally winding and braiding stainless steel stranded wires with different diameters, the stainless steel stranded wires are formed by concentrically twisting a stainless steel monofilament central reinforcing wire and a plurality of tin-plated copper monofilaments, the diameter of each stainless steel monofilament is 0.5mm, the diameter of each tin-plated copper monofilament is 0.6mm, the mesh-shaped shielding conductor layer can effectively inhibit internal signals or noise from leaking to the outside and interference from external signals, and the mesh-shaped shielding conductor layer is small in winding and wrapping tape, reduces stress concentration of the shielding mesh-shaped conductor layer, improves stability of reinforcing shielding characteristics, ensures effective shielding performance and is durable in use.
Preferably, the reinforcing ring comprises an inner reinforcing ring and an outer reinforcing ring, the inner reinforcing ring and the outer reinforcing ring are all a plurality of steel cords and are distributed in a central symmetry mode, the diameter of the inner reinforcing ring is smaller than that of the outer reinforcing ring, the inner reinforcing ring and the outer reinforcing ring are all pre-buried in the inner portion of the fixed layer, the buffer spring is wound on the heat-resistant filling layer, the buffer spring is arranged between the inner reinforcing ring and the outer reinforcing ring, the reinforcing ring is further pre-buried in the inner portion of the fixed layer, the inner reinforcing ring is arranged in the inner ring, the outer reinforcing ring is arranged in the outer ring, the inner reinforcing ring and the outer reinforcing ring can further improve the structural strength of the fixed layer, and the bending resistance of the cable is improved.
Preferably, the outer side surface of the wear-resisting firmware is fixedly provided with a T-shaped resistance block, the T-shaped resistance block is of a T-shaped structure, the outer side surface of the T-shaped resistance block is coated with a wear-resisting layer, each two T-shaped resistance blocks are provided with heat conducting heads, the inner side surface of the wear-resisting firmware is fixedly provided with an embedded fixing rod, the embedded fixing rod is fixedly provided with an arc-shaped locating block, the embedded fixing rod and the arc-shaped locating block are all arranged in the inner part of the fixing layer, the embedded fixing rod and the arc-shaped locating block are all arranged between the inner reinforcing ring and the outer reinforcing ring, the embedded fixing rod on the wear-resisting firmware is solidified in the inner part of the fixing layer, the arc-shaped locating block is solidified between the inner reinforcing ring and the outer reinforcing ring, the wear-resisting firmware can be fixed, the stability of the wear-resisting firmware can not be influenced under the condition that the wear-resisting firmware is dragged, and the service life of the cable can be further improved.
The invention has at least the following beneficial effects:
1. PVC polyvinyl chloride and EVA ethylene-vinyl acetate copolymer have good elasticity, low-temperature flexibility, chemical resistance and weather resistance, and can improve the environmental cracking resistance, impact resistance, hardness and adhesion between conductors and insulators of LDPE when being copolymerized with LDPE low-density polyethylene.
2. The PP polypropylene has excellent mechanical strength, highest softening temperature in thermoplastic resin, good low temperature resistance and ageing resistance, and XLPE crosslinked polyethylene has excellent ageing resistance and super heat resistance deformation, so that the crosslinked polyethylene cable can allow large current to pass under the conditions of normal operation temperature of 90 ℃, short-time fault of 130 ℃ and short circuit of 250 ℃, polyethylene molecules are changed into a three-dimensional network structure from a two-dimensional structure through crosslinking reaction, the chemical and physical properties of the material are correspondingly enhanced, and the heat resistance and pressure resistance are improved.
3. The PU polyurethane has good toughness, strength, resistance to erosion, chemical corrosion and shock resistance, the TPU thermoplastic polyurethane elastomer is a polyester polyurethane elastomer or a polyether polyurethane elastomer, products with different hardness can be obtained by changing the proportion of each reaction component of the TPU thermoplastic polyurethane elastomer, and the products still keep good elasticity and wear resistance along with the increase of the hardness.
4. The buffer spring is wound on the outer side surface of the heat-resistant filling layer, the buffer spring is wound on the heat-resistant filling layer, and the buffer spring is arranged between the inner reinforcing ring and the outer reinforcing ring, so that the buffer spring has a certain buffer function, the cable can be prevented from being excessively deformed, the tension applied to the wire can be reduced, and the service life of the cable is greatly prolonged.
5. The mesh shielding conductor layer can effectively inhibit internal signals or noise from leaking to the outside and interference from external signals, and is small in friction coefficient, reduces stress concentration of the shielding mesh conductor layer, improves stability of enhanced shielding characteristics, ensures effective shielding performance and is durable.
6. The fixed wear-resisting firmware that is provided with in the lateral surface of fixed layer, T type resistance piece on the wear-resisting firmware is outstanding in the fixed layer, consequently, drag the in-process of cable, produce friction between the preferential and ground of T type resistance piece on the wear-resisting firmware, avoid fixed layer to directly produce friction with ground between, promote the life of fixed layer, the solidification of pre-buried dead lever on the wear-resisting firmware is in the inside of fixed layer, and arc locating piece solidification is between strengthening ring and outer strengthening ring including, can fix the wear-resisting firmware, under the circumstances that the wear-resisting firmware was dragged, also can not influence the stability of wear-resisting firmware, and then can promote the life of cable.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a flow chart of the method of the present invention;
FIG. 2 is a perspective view of a cable according to the present invention;
FIG. 3 is a cable construction diagram of the present invention;
FIG. 4 is a block diagram of the wear-resistant firmware of the present invention;
FIG. 5 is a block diagram of a heat resistant filler layer of the present invention;
fig. 6 is a side view of the present invention.
In the figure, 1-wire, 2-insulating layer, 3-dampproof layer, 4-heat-resistant filling layer, 5-fixed layer, 6-wear-resistant firmware, 601-T type resistance block, 602-heat conduction head, 603-pre-buried fixed rod, 604-arc-shaped positioning block, 7-buffer spring, 8-mesh shielding conductor layer, 9-reinforcing ring, 901-inner reinforcing ring, 902-outer reinforcing ring and 10-wear-resistant layer.
Detailed Description
The embodiments of the present application will be described in detail below with reference to the accompanying drawings and examples, so that the implementation process of how the technical means are applied to solve the technical problems and achieve the technical effects of the present application can be fully understood and implemented accordingly.
As shown in fig. 1 to 6, the preparation method of the wear-resistant and heat-resistant charging cable for the new energy automobile provided by the embodiment includes the following raw material components in parts by weight:
10-25 parts of PVC (polyvinyl chloride), 15-28 parts of EVA (ethylene vinyl acetate) copolymer, 2-5 parts of PP (polypropylene), 10-20 parts of XLPE (cross-linked polyethylene), 55-75 parts of filler, 5-10 parts of polyester material, 1-2 parts of antioxidant, 1.0-2.5 parts of lubricant and 1-5 parts of flame retardant;
the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
12-22 parts of PVC (polyvinyl chloride), 18-25 parts of EVA (ethylene vinyl acetate) copolymer, 2.5-4.5 parts of PP (polypropylene), 12-18 parts of XLPE (cross-linked polyethylene), 60-70 parts of filler, 6-9 parts of polyester material, 1.1-1.9 parts of antioxidant, 0.2-2.2 parts of lubricant and 1.1-4.5 parts of flame retardant;
the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
17 parts of PVC polyvinyl chloride, 20 parts of EVA ethylene-vinyl acetate copolymer, 3.5 parts of PP polypropylene, 15 parts of XLPE cross-linked polyethylene, 65 parts of filler, 7.5 parts of polyester material, 1.7 parts of antioxidant, 1.2 parts of lubricant and 2.5 parts of flame retardant;
PVC polyvinyl chloride has the advantages of being difficult to burn, ageing-resistant, oil-resistant, chemical-resistant, impact-resistant and easy to color, has good wear resistance, can resist oil, acid, alkali, bacteria, moisture, sunlight irradiation and the like as a wire cable sheath, has self-extinguishing performance on the action of flame, and can resist high temperature up to 105 ℃, wherein the volume resistivity rho=1010-1012 Ω·m, the dielectric loss tangent tg delta (50 Hz) =0.05-0.15, the dielectric constant epsilon=4-8 (50 Hz), and the EVA ethylene-vinyl acetate copolymer has good elasticity, low-temperature flexibility, chemical-resistant and weather resistance, is copolymerized with LDPE low-density polyethylene, and can improve the environmental cracking resistance, impact resistance, soft hardness and adhesion between conductors and insulators of LDPE;
the PP polypropylene has excellent mechanical strength, the softening temperature is highest in the thermoplastic resin, and the low temperature resistance and the aging resistance are good; only slightly inferior in optical rotation resistance, but can be improved by adding a stabilizer through copolymerization,
XLPE crosslinked polyethylene has excellent ageing resistance and super heat resistance deformation, so that the crosslinked polyethylene cable can allow large current to pass under the conditions of normal operation temperature of 90 ℃, short-time fault of 130 ℃ and short circuit of 250 ℃, polyethylene molecules are changed into a three-dimensional network structure from a two-dimensional structure through crosslinking reaction, the chemical and physical properties of the material are correspondingly enhanced, and the heat resistance and pressure resistance are improved;
the filler is TPE high-molecular alloy material, PU polyurethane and TPU thermoplastic polyurethane elastomer, the TPE high-molecular alloy material is aluminum hydroxide or magnesium hydroxide, the TPE high-molecular alloy material has general plastic processing property and high-molecular alloy material similar to cross-linked rubber property, and double bonds in the SEBS molecular structure are saturated, so that the TPE high-molecular alloy material has the ageing-resistant characteristic, is safe and nontoxic, good in stability, soft in texture, attractive in appearance, comfortable in handfeel, good in rebound resilience and strong in wet skid resistance, and has the characteristic of being recyclable, so that the TPE high-molecular alloy material has the characteristic of environmental protection;
the PU polyurethane has good toughness, strength, resistance to erosion, chemical corrosion and shock resistance, can keep softness within the range of-550 to +900C, has good radiation resistance and is suitable for sealing, and the wear resistance is four times better than that of polyethylene and polyvinyl chloride;
the TPU thermoplastic polyurethane elastomer is polyester polyurethane elastomer or polyether polyurethane elastomer, products with different hardness can be obtained by changing the proportion of each reaction component of the TPU thermoplastic polyurethane elastomer, and the products still keep good elasticity and wear resistance along with the increase of the hardness, the elastic modulus of rubber is usually 1-10 Mpa, the TPU thermoplastic polyurethane elastomer is 10-1000 Mpa, and the plastic has high elasticity in the whole hardness range of 1000-10000 Mpa;
the antioxidant is antioxidant 1010, the lubricant is a mixture of butyl stearate and polyethylene wax, and the flame retardant is a mixture of antimony trioxide and magnesium hydroxide, so that oxidation is prevented, and the oxidation resistance and the combustion resistance of the body are improved;
a preparation method of a wear-resistant and heat-resistant charging cable for a new energy automobile comprises the following steps:
s01, obtaining a wire 1 through a twisting process;
s02, coating PVC polyvinyl chloride on the wire 1 through a radiation crosslinking process and performing UV curing to form an insulating layer 2;
s03, forming a moisture-proof layer 3 on the outer surface of the insulating layer 2 in the second step through a crosslinking process by using XLPE crosslinked polyethylene;
s04, winding the two moisture-proof layers 3 in the third step, forming a heat-resistant filling layer 4 through a crosslinking process, and embedding a reticular shielding conductor layer 8 in the middle of the wear-resistant firmware 6;
s05, sleeving the buffer spring 7 on the heat-resistant filling layer 4 in the fourth step, forming an outer sheath fixing layer 5 through a crosslinking process, and curing through UV;
s06, coating PP polypropylene on the outer side surface of the wear-resistant firmware 6 and curing to form a wear-resistant layer 10;
s07, pre-burying two circles of reinforcing rings 9 in the fixed layer 5 before solidification in the step five, and pre-burying a T-shaped resistance block 601 on the wear-resistant fixing piece 6 between the two circles of reinforcing rings 9 in the fixed layer 5;
and S08, preparing the wear-resistant and heat-resistant cable after curing.
Embodiment one:
the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
10 parts of PVC polyvinyl chloride, 15 parts of EVA ethylene-vinyl acetate copolymer, 2 parts of PP polypropylene, 10 parts of XLPE cross-linked polyethylene, 55 parts of filler, 5 parts of polyester material, 1 part of antioxidant, 0.1 part of lubricant and 1 part of flame retardant;
a preparation method of a wear-resistant and heat-resistant charging cable for a new energy automobile comprises the following steps:
s01, obtaining a wire 1 through a twisting process;
s02, coating PVC polyvinyl chloride on the wire 1 through a radiation crosslinking process and performing UV curing to form an insulating layer 2;
s03, forming a moisture-proof layer 3 on the outer surface of the insulating layer 2 in the second step through a crosslinking process by using XLPE crosslinked polyethylene;
s04, winding the two moisture-proof layers 3 in the third step, forming a heat-resistant filling layer 4 through a crosslinking process, and embedding a reticular shielding conductor layer 8 in the middle of the wear-resistant firmware 6;
s05, sleeving the buffer spring 7 on the heat-resistant filling layer 4 in the fourth step, forming an outer sheath fixing layer 5 through a crosslinking process, and curing through UV;
s06, coating PP polypropylene on the outer side surface of the wear-resistant firmware 6 and curing to form a wear-resistant layer 10;
s07, pre-burying two circles of reinforcing rings 9 in the fixed layer 5 before solidification in the step five, and pre-burying a T-shaped resistance block 601 on the wear-resistant fixing piece 6 between the two circles of reinforcing rings 9 in the fixed layer 5;
and S08, preparing the wear-resistant and heat-resistant cable after curing.
Embodiment two:
this embodiment is substantially the same as embodiment 1 except that: the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
25 parts of PVC (polyvinyl chloride), 28 parts of EVA (ethylene vinyl acetate) copolymer, 5 parts of PP (polypropylene), 20 parts of XLPE (cross-linked polyethylene), 75 parts of filler, 10 parts of polyester material, 2 parts of antioxidant, 2.5 parts of lubricant and 5 parts of flame retardant.
Embodiment III:
this embodiment is substantially the same as embodiment 1 except that: the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
15 parts of PVC polyvinyl chloride, 18 parts of EVA ethylene-vinyl acetate copolymer, 3 parts of PP polypropylene, 12 parts of XLPE cross-linked polyethylene, 60 parts of filler, 6 parts of polyester material, 1.4 parts of antioxidant, 1.5 parts of lubricant and 2 parts of flame retardant.
Embodiment four:
this embodiment is substantially the same as embodiment 1 except that: the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
18 parts of PVC polyvinyl chloride, 24 parts of EVA ethylene-vinyl acetate copolymer, 3.5 parts of PP polypropylene, 14 parts of XLPE cross-linked polyethylene, 65 parts of filler, 8 parts of polyester material, 1.6 parts of antioxidant, 1.8 parts of lubricant and 3 parts of flame retardant.
Fifth embodiment:
this embodiment is substantially the same as embodiment 1 except that: the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
20 parts of PVC polyvinyl chloride, 26 parts of EVA ethylene-vinyl acetate copolymer, 4.5 parts of PP polypropylene, 18 parts of XLPE crosslinked polyethylene, 70 parts of filler, 9 parts of polyester material, 1.8 parts of antioxidant, 2.2 parts of lubricant and 4 parts of flame retardant.
Comparative example 1:
the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
10 parts of PVC (polyvinyl chloride), 2 parts of PP (polypropylene), 10 parts of XLPE (cross-linked polyethylene), 55 parts of filler and 5 parts of polyester material;
a preparation method of a wear-resistant and heat-resistant charging cable for a new energy automobile comprises the following steps:
s01, obtaining a wire 1 through a twisting process;
s02, coating PVC polyvinyl chloride on the wire 1 through a radiation crosslinking process and performing UV curing to form an insulating layer 2;
s03, forming a moisture-proof layer 3 on the outer surface of the insulating layer 2 in the second step through a crosslinking process by using XLPE crosslinked polyethylene;
s04, winding the two moisture-proof layers 3 in the third step, forming a heat-resistant filling layer 4 through a crosslinking process, and embedding a reticular shielding conductor layer 8 in the middle of the wear-resistant firmware 6;
s05, sleeving the buffer spring 7 on the heat-resistant filling layer 4 in the fourth step, forming an outer sheath fixing layer 5 through a crosslinking process, and curing through UV;
s06, coating PP polypropylene on the outer side surface of the wear-resistant firmware 6 and curing to form a wear-resistant layer 10;
s07, pre-burying two circles of reinforcing rings 9 in the fixed layer 5 before solidification in the step five, and pre-burying a T-shaped resistance block 601 on the wear-resistant fixing piece 6 between the two circles of reinforcing rings 9 in the fixed layer 5;
and S08, preparing the wear-resistant and heat-resistant cable after curing.
Comparative example 2:
this comparative example is substantially the same as comparative example 1 except that: the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
25 parts of PVC polyvinyl chloride, 5 parts of PP polypropylene, 20 parts of XLPE cross-linked polyethylene, 75 parts of filler and 10 parts of polyester material.
Comparative example 3:
this comparative example is substantially the same as comparative example 1 except that: the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
15 parts of PVC polyvinyl chloride, 3 parts of PP polypropylene, 12 parts of XLPE cross-linked polyethylene, 60 parts of filler and 6 parts of polyester material.
Comparative example 4:
this comparative example is substantially the same as comparative example 1 except that: the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
18 parts of PVC polyvinyl chloride, 3.5 parts of PP polypropylene, 14 parts of XLPE cross-linked polyethylene, 65 parts of filler and 8 parts of polyester material.
Comparative example 5:
this comparative example is substantially the same as comparative example 1 except that: the wear-resistant and heat-resistant charging cable material for the new energy automobile comprises the following raw material components in parts by weight:
20 parts of PVC polyvinyl chloride, 4.5 parts of PP polypropylene, 18 parts of XLPE cross-linked polyethylene, 70 parts of filler and 9 parts of polyester material.
The performance test results of the wear-resistant and heat-resistant charging cable materials are shown in tables 1 and 2:
table 1:
table 2:
as can be seen from the results in tables 1 and 2, the cable material obtained by the method disclosed by the invention has the properties of high wear resistance, heat resistance, elongation, insulativity and the like by combining the EVA ethylene-vinyl acetate copolymer, XLPE crosslinked polyethylene, the antioxidant and the flame retardant with other raw material components, and the service life of the cable is greatly prolonged.
As shown in fig. 1-6, the wear-resistant and heat-resistant charging cable for the new energy automobile provided by the embodiment comprises a wire 1 and an insulating layer 2 coated on the wire 1, wherein a moisture-proof layer 3 is arranged on the outer side surface of the insulating layer 2, a heat-resistant filling layer 4 is coated on the outer side surface of the moisture-proof layer 3, a reticular shielding conductor layer 8 is fixedly arranged in the middle of the heat-resistant filling layer 4, a fixing layer 5 is fixedly arranged on the outer side surface of the heat-resistant filling layer 4, a buffer spring 7 is wound on the outer side surface of the heat-resistant filling layer 4, and the buffer spring 7 is not contacted with the heat-resistant filling layer 4;
the insulating layer 2 and the moisture-proof layer 3 are coated on the lead 1, the insulating layer 2 has a good insulating effect on the lead 1, and when the lead 1 is charged, a large amount of heat can be generated due to overlarge output power, and the heat is obtained by Joule's law:
Q＝I 2 ·R·T；
wherein I is current, R is resistance, T is charging time;
the wires 1 are separated by the insulating layer 2, and the moisture-proof layer 3 is arranged on the outer surface of the insulating layer 2, so that the wires 1 can be protected, the wires 1 are prevented from being short-circuited, and the service life of the cable is prolonged;
because the cable is required to be dragged in the charging process, the wire 1 is stressed by different degrees along with the dragging of the insulating leather, and the cable is bent in the dragging process, the wire 1 is repeatedly bent, the wire 1 is broken once the cable is extruded to be too large in amplitude, the situation of short circuit occurs, the buffer spring 7 is wound on the outer side surface of the heat-resistant filling layer 4, the buffer spring 7 is wound on the heat-resistant filling layer 4, and the buffer spring 7 is arranged between the inner reinforcing ring 901 and the outer reinforcing ring 902, so that the buffer spring 7 has a certain buffer function, the cable is prevented from being excessively deformed, the tension stressed by the wire 1 is reduced, and the service life of the cable is greatly prolonged;
the mesh-shaped shielding conductor layer 8 is formed by spirally winding and braiding stainless steel stranded wires with different diameters, wherein the stainless steel stranded wires are formed by concentrically twisting a stainless steel monofilament central reinforcing wire and a plurality of tin-plated copper monofilaments, the diameter of each stainless steel monofilament is 0.5mm, and the diameter of each tin-plated copper monofilament is 0.6mm;
the mesh-shaped shielding conductor layer 8 can effectively inhibit internal signals or noise from leaking to the outside and interference from external signals, and has small friction coefficient, reduces stress concentration of the shielding mesh-shaped conductor layer, improves stability of enhanced shielding characteristics, ensures effective shielding performance and is durable in use;
further, as shown in fig. 3 and fig. 4, the outer side surface of the fixed layer 5 is fixedly provided with the wear-resistant firmware 6, the middle part of the wear-resistant firmware 6 is fixedly provided with the T-shaped resistance block 601, the T-shaped resistance block 601 is fixedly arranged in the fixed layer 5, in the process of dragging the cable, a large friction force exists between the cable and the ground, the service life of the cable is seriously reduced due to frequent friction, the wear-resistant firmware 6 is fixedly arranged on the outer side surface of the fixed layer 5, the T-shaped resistance block 601 on the wear-resistant firmware 6 protrudes out of the fixed layer 5, so that friction is generated between the T-shaped resistance block 601 on the wear-resistant firmware 6 and the ground preferentially in the process of dragging the cable, the friction is avoided between the fixed layer 5 and the ground, the service life of the fixed layer 5 is prolonged, the outer side surface of the wear-resistant firmware 6 is fixedly provided with the T-shaped resistance block 601, the outer side surface of the T-shaped resistance block 601 is coated with the wear-resistant layer 10, and a head 602 is arranged between every two T-shaped resistance blocks 601, and meanwhile, in the outer side surface of the wear-resistant firmware 6 is fixedly provided with the wear-resistant layer 10, and further heat conductivity of the cable is improved;
after the wire 1 generates certain heat, the heat can be dissipated into the air through the heat conducting head 602 on the wear-resistant fixing piece 6, so that the heat resistance of the cable is improved;
meanwhile, the reinforcing ring 9 comprises an inner reinforcing ring 901 and an outer reinforcing ring 902, the inner reinforcing ring 901 and the outer reinforcing ring 902 are all of a plurality of steel cords and are distributed in a central symmetry mode, the diameter of the inner reinforcing ring 901 is smaller than that of the outer reinforcing ring 902, the inner reinforcing ring 901 and the outer reinforcing ring 902 are both embedded in the fixing layer 5, the reinforcing ring 9 is embedded in the fixing layer 5, the inner reinforcing ring 901 is arranged in the inner ring, the outer reinforcing ring 902 is arranged in the outer ring, and the inner reinforcing ring 901 and the outer reinforcing ring 902 can further improve the structural strength of the fixing layer 5 and the bending resistance of a cable;
in addition, the medial surface of wear-resisting firmware 6 is fixed and is provided with pre-buried dead lever 603, fixed arc locating piece 604 that is provided with on the pre-buried dead lever 603, pre-buried dead lever 603 and arc locating piece 604 all set up in the inside of fixed layer 5, and pre-buried dead lever 603 and arc locating piece 604 all set up between strengthening ring 901 and outer strengthening ring 902, pre-buried dead lever 603 solidification on wear-resisting firmware 6 is in the inside of fixed layer 5, and arc locating piece 604 solidification is between strengthening ring 901 and outer strengthening ring 902, can fix wear-resisting firmware 6, under the circumstances that wear-resisting firmware 6 was dragged, also can not influence the stability of wear-resisting firmware 6, and then can promote the life of cable.
Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art can solve the technical problem within a certain error range, substantially achieving the technical effect.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude that an additional identical element is present in a commodity or system comprising the element.
While the foregoing description illustrates and describes the preferred embodiments of the present invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (10)
1. The preparation method of the wear-resistant and heat-resistant charging cable for the new energy automobile is characterized in that the charging cable material comprises the following raw material components in parts by weight:
10-25 parts of PVC (polyvinyl chloride), 15-28 parts of EVA (ethylene vinyl acetate) copolymer, 2-5 parts of PP (polypropylene), 10-20 parts of XLPE (cross-linked polyethylene), 55-75 parts of filler, 5-10 parts of polyester material, 1-2 parts of antioxidant, 1.0-2.5 parts of lubricant and 1-5 parts of flame retardant;
the method comprises the following steps:
s01, obtaining a wire (1) through a twisting process;
s02, coating PVC polyvinyl chloride on the wire (1) through a radiation crosslinking process and performing UV curing to form an insulating layer (2);
s03, forming a moisture-proof layer (3) on the outer surface of the insulating layer (2) in the second step through a crosslinking process by using XLPE crosslinked polyethylene;
s04, winding the two moisture-proof layers (3) in the third step, forming a heat-resistant filling layer (4) through a crosslinking process, and embedding a reticular shielding conductor layer (8) in the middle of the wear-resistant firmware (6);
s05, sleeving a buffer spring (7) on the heat-resistant filling layer (4) in the fourth step, forming an outer sheath fixing layer (5) through a crosslinking process, and curing through UV;
s06, coating PP polypropylene on the outer side surface of the wear-resistant firmware (6) and curing to form a wear-resistant layer (10);
s07, pre-burying two circles of reinforcing rings (9) in the fixed layer (5) before solidification in the step five, and pre-burying a T-shaped resistance block (601) on the wear-resistant firmware (6) between the two circles of reinforcing rings (9) in the fixed layer (5);
and S08, preparing the wear-resistant and heat-resistant cable after curing.
The wear-resistant and heat-resistant charging cable comprises a wire (1) and an insulating layer (2) coated on the wire (1), wherein a moisture-proof layer (3) is arranged on the outer side face of the insulating layer (2), a heat-resistant filling layer (4) is coated on the outer side face of the moisture-proof layer (3), a reticular shielding conductor layer (8) is fixedly arranged in the middle of the heat-resistant filling layer (4), a fixing layer (5) is fixedly arranged on the outer side face of the heat-resistant filling layer (4), a buffer spring (7) is wound on the outer side face of the heat-resistant filling layer (4), and the buffer spring (7) is not in contact with the heat-resistant filling layer (4);
the wear-resisting fixing piece (6) is fixedly arranged on the outer side face of the fixing layer (5), the T-shaped resistance block (601) is fixedly arranged in the middle of the wear-resisting fixing piece (6), and the T-shaped resistance block (601) is fixedly arranged in the fixing layer (5).
2. The method for manufacturing the wear-resistant and heat-resistant charging cable for the new energy automobile according to claim 1, wherein the method comprises the following steps: the charging cable material comprises the following raw material components in parts by weight:
12-22 parts of PVC (polyvinyl chloride), 18-25 parts of EVA (ethylene vinyl acetate) copolymer, 2.5-4.5 parts of PP (polypropylene), 12-18 parts of XLPE (cross-linked polyethylene), 60-70 parts of filler, 6-9 parts of polyester material, 1.1-1.9 parts of antioxidant, 0.2-2.2 parts of lubricant and 1.1-4.5 parts of flame retardant.
3. The method for manufacturing the wear-resistant and heat-resistant charging cable for the new energy automobile according to claim 1, wherein the method comprises the following steps: the filler is TPE high-molecular alloy material, PU polyurethane and TPU thermoplastic polyurethane elastomer;
the TPE polymer alloy material is aluminum hydroxide or magnesium hydroxide;
the TPU thermoplastic polyurethane elastomer is a polyester polyurethane elastomer or a polyether polyurethane elastomer.
4. The method for manufacturing the wear-resistant and heat-resistant charging cable for the new energy automobile according to claim 1, wherein the method comprises the following steps: the antioxidant is antioxidant 1010, the lubricant is a mixture of butyl stearate and polyethylene wax, and the flame retardant is a mixture of antimony trioxide and magnesium hydroxide.
5. The method for manufacturing the wear-resistant and heat-resistant charging cable for the new energy automobile according to claim 1, wherein the method comprises the following steps: the reticular shielding conductor layer (8) is of a reticular structure and is wrapped inside the heat-resistant filling layer (4).
6. The method for manufacturing the wear-resistant and heat-resistant charging cable for the new energy automobile according to claim 1, wherein the method comprises the following steps: the mesh-shaped shielding conductor layer (8) is formed by spirally winding and braiding stainless steel stranded wires with different diameters, the stainless steel stranded wires are formed by concentrically twisting a stainless steel monofilament central reinforcing wire and a plurality of tin-plated copper monofilaments, the diameter of each stainless steel monofilament is 0.5mm, and the diameter of each tin-plated copper monofilament is 0.6mm.
7. The method for manufacturing the wear-resistant and heat-resistant charging cable for the new energy automobile according to claim 1, wherein the method comprises the following steps: the reinforcing ring (9) comprises an inner reinforcing ring (901) and an outer reinforcing ring (902), wherein the inner reinforcing ring (901) and the outer reinforcing ring (902) are all formed by a plurality of steel cords and distributed in a central symmetry mode, the diameter of the inner reinforcing ring (901) is smaller than that of the outer reinforcing ring (902), and the inner reinforcing ring (901) and the outer reinforcing ring (902) are all embedded in the fixing layer (5).
8. The method for manufacturing the wear-resistant and heat-resistant charging cable for the new energy automobile according to claim 1, wherein the method comprises the following steps: the buffer spring (7) is wound on the heat-resistant filling layer (4), and the buffer spring (7) is arranged between the inner reinforcing ring (901) and the outer reinforcing ring (902).
9. The method for manufacturing the wear-resistant and heat-resistant charging cable for the new energy automobile according to claim 1, wherein the method comprises the following steps: the wear-resisting fastener is characterized in that a T-shaped resistance block (601) is fixedly arranged on the outer side face of the wear-resisting fastener (6), the T-shaped resistance block (601) is of a T-shaped structure, a wear-resisting layer (10) is coated on the outer side face of the T-shaped resistance block (601), and a heat conducting head (602) is arranged between every two T-shaped resistance blocks (601).
10. The method for manufacturing the wear-resistant and heat-resistant charging cable for the new energy automobile according to claim 7, wherein the method comprises the following steps: the anti-wear fixing device is characterized in that an embedded fixing rod (603) is fixedly arranged on the inner side face of the anti-wear fixing piece (6), an arc-shaped locating block (604) is fixedly arranged on the embedded fixing rod (603), the embedded fixing rod (603) and the arc-shaped locating block (604) are all arranged in the fixing layer (5), and the embedded fixing rod (603) and the arc-shaped locating block (604) are all arranged between the inner reinforcing ring (901) and the outer reinforcing ring (902).
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005044596A (en) * | 2003-07-28 | 2005-02-17 | Hitachi Cable Ltd | Nonphosphate high-flame-resistance high-strength nonhalogen insulated wire |
| JP2006054056A (en) * | 2004-08-09 | 2006-02-23 | Tohoku Electric Power Co Inc | Two-layered insulation coated polyvinyl lead-in insulated electric wire |
| CN201146071Y (en) * | 2008-01-15 | 2008-11-05 | 深圳琦富瑞电子有限公司 | Novel irradiation crosslinked polyvinyl chloride insulation abrasion-proof electronic line |
| CN102664065A (en) * | 2012-05-04 | 2012-09-12 | 无锡市恒汇电缆有限公司 | Moisture-proof wire and manufacturing method thereof |
| CN106448907A (en) * | 2016-10-12 | 2017-02-22 | 昆山翰辉电子科技有限公司 | Multi-core moisture-proof type fine-diameter coaxial cable |
| JP2017069128A (en) * | 2015-10-01 | 2017-04-06 | 日立金属株式会社 | Coaxial cable and manufacturing method therefor |
| CN206907549U (en) * | 2017-07-12 | 2018-01-19 | 深圳市利路通科技实业有限公司 | Large current charge stake cable |
| CN107739486A (en) * | 2017-11-30 | 2018-02-27 | 安徽明辉电气有限公司 | A kind of cable material of weatherability fire protection flame retarding and preparation method thereof |
| CN109486050A (en) * | 2017-09-13 | 2019-03-19 | 上海电缆厂（南京）有限公司 | A kind of fire-retardant acid and alkali-resistance cable material |
| CN110890174A (en) * | 2019-10-16 | 2020-03-17 | 安徽尚纬电缆有限公司 | New energy vehicle is with ultra-thin wall insulated cable |
| CN112259280A (en) * | 2020-10-19 | 2021-01-22 | 浙江正泰电缆有限公司 | New energy cable for charging pile |
| CN113299440A (en) * | 2021-05-28 | 2021-08-24 | 江苏中天科技股份有限公司 | Comprehensive flexible cable and manufacturing method thereof |
| CN218241398U (en) * | 2022-09-09 | 2023-01-06 | 海南太和线缆有限公司 | Single-core polyvinyl chloride insulated polyvinyl chloride sheathed cable |
-
2023
- 2023-11-21 CN CN202311551985.2A patent/CN117558496A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005044596A (en) * | 2003-07-28 | 2005-02-17 | Hitachi Cable Ltd | Nonphosphate high-flame-resistance high-strength nonhalogen insulated wire |
| JP2006054056A (en) * | 2004-08-09 | 2006-02-23 | Tohoku Electric Power Co Inc | Two-layered insulation coated polyvinyl lead-in insulated electric wire |
| CN201146071Y (en) * | 2008-01-15 | 2008-11-05 | 深圳琦富瑞电子有限公司 | Novel irradiation crosslinked polyvinyl chloride insulation abrasion-proof electronic line |
| CN102664065A (en) * | 2012-05-04 | 2012-09-12 | 无锡市恒汇电缆有限公司 | Moisture-proof wire and manufacturing method thereof |
| JP2017069128A (en) * | 2015-10-01 | 2017-04-06 | 日立金属株式会社 | Coaxial cable and manufacturing method therefor |
| CN106448907A (en) * | 2016-10-12 | 2017-02-22 | 昆山翰辉电子科技有限公司 | Multi-core moisture-proof type fine-diameter coaxial cable |
| CN206907549U (en) * | 2017-07-12 | 2018-01-19 | 深圳市利路通科技实业有限公司 | Large current charge stake cable |
| CN109486050A (en) * | 2017-09-13 | 2019-03-19 | 上海电缆厂（南京）有限公司 | A kind of fire-retardant acid and alkali-resistance cable material |
| CN107739486A (en) * | 2017-11-30 | 2018-02-27 | 安徽明辉电气有限公司 | A kind of cable material of weatherability fire protection flame retarding and preparation method thereof |
| CN110890174A (en) * | 2019-10-16 | 2020-03-17 | 安徽尚纬电缆有限公司 | New energy vehicle is with ultra-thin wall insulated cable |
| CN112259280A (en) * | 2020-10-19 | 2021-01-22 | 浙江正泰电缆有限公司 | New energy cable for charging pile |
| CN113299440A (en) * | 2021-05-28 | 2021-08-24 | 江苏中天科技股份有限公司 | Comprehensive flexible cable and manufacturing method thereof |
| CN218241398U (en) * | 2022-09-09 | 2023-01-06 | 海南太和线缆有限公司 | Single-core polyvinyl chloride insulated polyvinyl chloride sheathed cable |
Non-Patent Citations (1)
| Title |
|---|
| 王文渊;赵钱育;宫传播;: "新能源电动汽车充电电缆的研制", 中国新技术新产品, no. 12, 25 June 2016 (2016-06-25) * |
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