WO2019042009A1 - Wear-resistant, torsion-resistant and environmentally friendly cable for electrical vehicle charging and preparation method therefor - Google Patents

Wear-resistant, torsion-resistant and environmentally friendly cable for electrical vehicle charging and preparation method therefor Download PDF

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Publication number
WO2019042009A1
WO2019042009A1 PCT/CN2018/094543 CN2018094543W WO2019042009A1 WO 2019042009 A1 WO2019042009 A1 WO 2019042009A1 CN 2018094543 W CN2018094543 W CN 2018094543W WO 2019042009 A1 WO2019042009 A1 WO 2019042009A1
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Prior art keywords
core
resistant
cable
torsion
wear
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PCT/CN2018/094543
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French (fr)
Chinese (zh)
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徐鹏飞
季咏金
陆如泉
姚骞
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中天科技装备电缆有限公司
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Publication of WO2019042009A1 publication Critical patent/WO2019042009A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
    • 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
    • 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
    • H01B13/14—Insulating conductors or cables by extrusion
    • 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
    • H01B13/24—Sheathing; Armouring; Screening; Applying other protective layers by extrusion
    • 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
    • H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
    • 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
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; 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
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806—Protection against damage caused by corrosion
    • 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

Definitions

  • the invention belongs to the technical field of cable for a new energy electric vehicle conduction charging system, and particularly relates to a wear-resistant and torsion-resistant electric vehicle charging cable and a preparation method thereof.
  • the charging mode of electric vehicles and the construction of charging facilities are the basis and premise of the healthy development of the whole industry. Under the guidance of policy support, the scientific planning, rational layout and unified standards of electric vehicle development stage, vehicle type and operation characteristics should be combined to provide better electric vehicles. Charging service.
  • the present invention provides a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable and a preparation method thereof.
  • a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable comprising a core and a sheath, wherein the core jacket has a sheath;
  • the wire core comprises two power wire cores, one ground wire core, two low-voltage auxiliary wire cores and a signal control core, and is filled with a twisted flame-retardant PP rope, and the multi-core core is twisted and wound outside. a layer of non-woven fabric;
  • the power wire core is composed of a conductor and an insulating layer, and the conductor is jacketed with an insulating layer;
  • the signal control core is provided with a charging connection line, a charging confirmation line, a temperature control line and an electronic lock line, and the signal control core has a composite shielding layer.
  • the sheath material is selected from a polyurethane elastomer.
  • the insulating layer is made of an ethylene-propylene rubber mixture.
  • the composite shielding layer adopts a composite mode of aluminum-plastic composite tape and tin-plated copper wire: an insulated wire core is wrapped with a layer of aluminum-plastic composite tape, and then woven with tinned copper wire, aluminum of aluminum-plastic composite tape The surface is in direct contact with the braided copper wire.
  • a method for preparing a wear-resistant and torsion-resistant electric vehicle charging cable comprises the following steps: conductor stranding, insulation extrusion, shielding layer, inner liner layer, core stranding and sheath extrusion, wherein the core Cable and sheath extrusion are key processes in cable manufacturing; the specific operations are as follows:
  • the core is cabled: the cable comprises two power cores, one ground core, two low voltage auxiliary cores and 6-12 core signal control cores, the core structure is inconsistent, and the multi-core core is cabled. It becomes the key to the subsequent production of cable. It is filled with twisted flame-retardant PP rope (pure polypropylene filled rope). After multi-core core stranding, the outer layer is wrapped with a layer of non-woven fabric; the wrapping direction is the same as the cabling direction, and the cable is wound. The pitch ratio is 14 times;
  • the sheath material is made of polyurethane elastomer with hardness of 80 ⁇ 3A, which can make the minimum bending radius reach 5D;
  • the outer sheath is produced by 90-type extruder, and the outer diameter of the extrusion is ⁇ 22.0- ⁇ 60mm, the maximum production speed is 70m/min, and the single-screw extruder with a ratio of long diameter to diameter of 20 to 30 and a compression ratio of 2 to 4 is extruded;
  • the extruder head watering device is used to allow the core to be sprayed and cooled immediately after being extruded from the die mouth to ensure that the surface of the sheath is smooth and round, and dried at 85 ° C for 1 to 2 hours before production to ensure the production of the protection.
  • the sliced surface has no pores.
  • the conductor needs to undergo a process of medium pulling, small pulling, annealing (tinning) to become a qualified copper monofilament; different drawing speeds are adopted for different wire drawing equipment and monofilament specifications; Annealing temperature T ⁇ (0.35 ⁇ 0.40)Tb, industrially selected recrystallization annealing temperature is generally higher than the minimum recrystallization temperature by 100 ⁇ 200°C, ensuring the elongation of copper monofilament is more than 20%, and the resistivity of monofilament 20°C is less than 0.017241 ⁇ .mm2/m;
  • the drawing process adopts polycrystalline mold and conductor production using diamond mold to ensure stable wire diameter and uniform conductor structure; the concentration of drawing liquid is controlled at 7 ⁇ 8%, and it is regularly tested and replaced; the temperature of drawing liquid is controlled at 35 ⁇ 40 °C; The pH is controlled at 7-8.
  • the insulation material is made of ethylene-propylene rubber mixture
  • the insulation production adopts continuous vulcanization process: extrusion through cold feed extruder, vulcanization by steam vulcanization pipe, vulcanization is a cross-linking process, need It can be completed in a certain period of time.
  • vulcanization temperature and pressure there is a certain suitable vulcanization time.
  • the shielding layer the aluminum-plastic composite tape and the tin-plated copper wire composite shielding method: the insulating core is wrapped with a layer of aluminum-plastic composite tape, and then woven with tinned copper wire, aluminum-plastic composite tape
  • the aluminum surface is in direct contact with the braided copper wire; by increasing the total number of spindles, reducing the number of spindles and the diameter of the monofilament, the braiding angle is controlled below 45°.
  • the invention has the advantages that the high-performance ethylene-propylene rubber material independently developed by the invention is used as the insulating material of the cable, and the elastomer material with excellent performance is used as the sheath material, can withstand frequent changes of high and low temperature, has excellent weather resistance and ultraviolet resistance, and can Long-term use outdoors. It has excellent wear resistance, winding resistance and resistance to moving fatigue.
  • Adopt reasonable structural design the reasonable layout of insulated wire cores ensures that the cable has normal temperature and low temperature anti-torque characteristics. Improve the overall environmental performance of the cable and the anti-aging life of the cable, and the cable life is up to 10 years.
  • the insulating material and sheath material used in the product of the invention have outstanding performance compared with similar materials on the market. In addition to satisfying the performance requirements of the cable, there is no halogen, no toxic advantage, and it is an environmentally friendly product and is harmless to the environment.
  • Electric vehicle conduction charging system cable is used as a bridge connecting electric vehicle charging device and charging infrastructure. It has excellent transmission performance, soft performance and environmental resistance for power transmission of electric vehicles. It is suitable for data of new energy electric vehicles and charging stations. Information and power transmission. This type of product plays an important role in environmental protection.
  • FIG. 1 is a schematic flow chart of a preparation method of the present invention
  • Figure 2 is a schematic view of the structure of the present invention.
  • a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable includes a core 1 and a sheath 2, and the core 1 is sheathed with a sheath 2.
  • the material of the sheath 2 is selected from a polyurethane elastomer.
  • the core 1 includes two power cores 11, a ground core 12, two low-voltage auxiliary cores 13 and a signal control core 14, and is filled with a twisted flame-retardant PP rope, and the multi-core core is twisted. After the combination, the outer layer is wrapped with a layer of non-woven fabric.
  • the power core 11 is composed of a conductor 111 and an insulating layer 112.
  • the conductor 111 is covered with an insulating layer 112; and the insulating layer 112 is made of an ethylene-propylene rubber mixture.
  • the signal control core 14 is provided with a charging connection line 141, a charging confirmation line 142, a temperature control line 143, and an electronic lock line 144.
  • the signal control core 14 is covered with a composite shielding layer 145.
  • the composite shielding layer 145 adopts a composite mode of aluminum-plastic composite tape and tin-plated copper wire: an insulated wire core is wrapped with a layer of aluminum-plastic composite tape, and then woven with tinned copper wire, and the aluminum surface of the aluminum-plastic composite tape is Braided copper wire is in direct contact.
  • the electric vehicle charging cable production process of the invention mainly comprises conductor stranding, insulation extrusion, shielding layer, inner liner layer, core stranding and sheath extrusion, wherein the core cable forming and sheath extrusion are cables.
  • the key process of manufacturing mainly comprises conductor stranding, insulation extrusion, shielding layer, inner liner layer, core stranding and sheath extrusion, wherein the core cable forming and sheath extrusion are cables.
  • the cable is made of 6 types of bare copper.
  • the conductor needs to be subjected to medium pulling, small pulling, annealing (tinning) and other processes to become qualified copper monofilament. Strictly control the quality of semi-finished products in each process during the production process.
  • annealing temperature T ⁇ (0.35 ⁇ 0.40)Tb industrial selection of recrystallization annealing temperature is generally higher than the minimum recrystallization temperature by 100 ⁇ 200°C, ensuring copper single The wire elongation is greater than 20%, and the resistivity of the monofilament at 20 ° C is less than 0.017241 ⁇ mm 2 /m.
  • the drawing process adopts polycrystalline mold and conductor production using diamond mold to ensure stable wire diameter and uniform conductor structure.
  • the concentration of the drawing liquid is controlled at 7 to 8%, and it is regularly detected and replaced; the temperature of the drawing liquid is controlled at 35 to 40 ° C; the pH value is controlled at 7 to 8, which can effectively prevent the oxidation of the copper material by the acid-base reagent, and the drawing Corrosion of the mold and the growth of bacteria.
  • the insulating material is made of ethylene-propylene rubber mixture.
  • the charging cable of the car is often repeatedly bent and towed during use. Therefore, it is required to have better flexibility.
  • the control of conductor and cable pitch ratio can effectively improve the softness of the product. .
  • the insulation production is carried out by a continuous vulcanization process, that is, extrusion through a cold feed extruder and vulcanization using a steam vulcanization pipe.
  • a continuous vulcanization process that is, extrusion through a cold feed extruder and vulcanization using a steam vulcanization pipe.
  • the specific process parameters are as follows: a single 65 extruder is used, the temperature of the extruder is 60 °C, the fuselage is 70 °C, and the fuselage is 73 °C.
  • the head is 81 ° C; the outlet speed is 32 m / min; the water level is 20% (the actual vulcanization length is about 90 m); the steam pressure is 1.4 MPa (the actual pipe steam temperature is 197 ° C).
  • Vulcanization is a cross-linking process that takes a certain amount of time to complete.
  • vulcanization time relative to the normal vulcanization time.
  • the vulcanization time is too short, and the sulfur will be produced. Although it is unlikely to produce excessive sulfur (resulting in reduced vulcanizate performance), it will affect the efficiency of vulcanization production.
  • the cable consists of two power cores, one grounding core, two low-voltage auxiliary cores and 6-12 core signal control cores.
  • the core structure is inconsistent.
  • the multi-core cable is the key to the subsequent production of the cable. It is filled with a twisted flame-retardant PP rope (pure polypropylene filled rope). After twisting the multi-core core, a non-woven fabric is wrapped around the outside.
  • the winding direction, the cable twisting direction and the cable pitch ratio are the key influencing factors for the cable production.
  • the winding direction is the same as the cable forming direction, and the pitch ratio is 14 times. Reducing the cable pitch ratio can effectively improve the flexibility of the core after cable formation. The smaller the pitch ratio, the softer the core, compared to the cable core with a pitch ratio of 16, after the outer sheath is squeezed With a minimum bend radius of 5D, the product can withstand repeated use and bending over a long period of time.
  • Process 1 has a lower surface transfer impedance and determines the shielding process.
  • the sheath material is made of polyurethane elastomer (TPU).
  • TPU polyurethane elastomer
  • the minimum bending radius test is performed on the finished wire core of the charging cable to determine the hardness of the material is 80 ⁇ 3A. This hardness can effectively ensure the repeated bending of the product during use. Make the minimum bend radius reach 5D.
  • the outer sheath is produced by a 90-type extruder with an outer diameter of ⁇ 22.0- ⁇ 60mm, a maximum production speed of 70m/min, a common single-screw extrusion with a screw diameter ratio of 20 to 30 and a compression ratio of 2 to 4. Take out the machine. Due to the good fluidity of the polyurethane elastomer (TPU) material, it is difficult to control the eccentricity of the production operation.
  • the extruder head watering device is used to allow the core to be sprayed and cooled immediately after being extruded from the die mouth to ensure protection.
  • the surface of the sleeve is smooth and round. Due to the characteristics of the polyurethane elastomer (TPU) material, it is easy to absorb moisture. It needs to be dried at 85 °C for 1 ⁇ 2 hours before production to ensure that the produced cut surface has no pores.
  • TPU polyurethane elastomer
  • the invention adopts the self-developed high-performance ethylene-propylene rubber material as the insulating material of the cable, and the elastic material with excellent performance is used as the sheath material, can withstand frequent changes of high and low temperature, has excellent weather resistance and ultraviolet resistance, and can be used outdoors for a long time. use. It has excellent wear resistance, winding resistance and resistance to moving fatigue.
  • Adopt reasonable structural design the reasonable layout of insulated wire cores ensures that the cable has normal temperature and low temperature anti-torque characteristics. Improve the overall environmental performance of the cable and the anti-aging life of the cable, and the cable life is up to 10 years.
  • the insulating material and sheath material used in the product of the invention have outstanding performance compared with similar materials on the market. In addition to satisfying the performance requirements of the cable, there is no halogen, no toxic advantage, and it is an environmentally friendly product and is harmless to the environment.
  • Electric vehicle conduction charging system cable is used as a bridge connecting electric vehicle charging device and charging infrastructure. It has excellent transmission performance, soft performance and environmental resistance for power transmission of electric vehicles. It is suitable for data of new energy electric vehicles and charging stations. Information and power transmission. This type of product plays an important role in environmental protection.

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  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
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Abstract

Disclosed are a wear-resistant, torsion-resistant and environmentally friendly cable for electrical vehicle charging and a preparation method therefor, comprising the following steps: twisting of conductors, insulation extrusion, cabling with a shield layer, a liner layer and a wire core, and sheath extrusion. The present solution employs a high-performance ethylene propylene rubber material self-developed as an insulation material of a cable, and an excellent-performance elastomer material as a sheath material, which can withstand frequently-changed high and low temperatures, has excellent climate resistance and ultraviolet light resistance performance, and can be used outdoors for a long time. The cable has excellent wear resistance, winding resistance and mobile fatigue resistance performance. A rational structure design is employed: the rational layout and twisting of the insulated wire cores ensure that the cable has torsion resistance properties at normal temperature and low temperature. The overall service environment performance of the cable and the anti-aging service life of the cable are improved, and the service life of the cable is up to 10 years.

Description

耐磨耐扭转环保型电动汽车充电用电缆及其制备方法Wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable and preparation method thereof 技术领域Technical field
本发明属于新能源电动汽车传导充电***用电缆技术领域，具体涉及一种耐磨耐扭转环保型电动汽车充电用电缆及其制备方法。The invention belongs to the technical field of cable for a new energy electric vehicle conduction charging system, and particularly relates to a wear-resistant and torsion-resistant electric vehicle charging cable and a preparation method thereof.
背景技术Background technique
随着汽车行业的快速发展，逐年增加的汽车数量、汽车废气排放等对环境造成一定的污染，北京、石家庄等地连续出现长时间的雾霾。面对全球温室效应、臭氧层破坏、资源不可持续等问题，各国都在寻求新能源的发展，太阳能、风能、核能已经被各国快速开发利用，新兴的电动汽车成为各国新能源产业发展的项目。美国、日本、欧洲等发达国家对新能源汽车技术高度重视，从汽车技术变革和产业升级的战略出发，颁布制定了优惠的政策措施，积极促进本国新能源汽车工业发展，以提升本国汽车工业国际竞争力，在全球汽车工业新一轮竞争中占据有利地位。With the rapid development of the automobile industry, the number of cars and automobile exhaust emissions increased year by year have caused certain pollution to the environment, and long-term smog has occurred continuously in Beijing and Shijiazhuang. Faced with global greenhouse effect, ozone layer destruction, and unsustainable resources, countries are seeking new energy development. Solar energy, wind energy and nuclear energy have been rapidly developed and utilized by various countries. Emerging electric vehicles have become the development projects of new energy industries in various countries. Developed countries such as the United States, Japan, and Europe attach great importance to new energy vehicle technology. From the strategy of automobile technology reform and industrial upgrading, they have promulgated and formulated preferential policies and measures to actively promote the development of new energy automobile industry in the country to enhance the domestic automobile industry. Competitiveness has a favorable position in the new round of competition in the global automotive industry.
新能源汽车的快速发展和电动汽车在全球范围内的推广有力带动了电动汽车充电站的发展步伐。电动汽车充电站的普及将是新能源汽车快速产业化的基本保障。充电站作为电动汽车产业链重要的一环，其与电动汽车之间相辅相成，为电动汽车市场的迅速崛起起到了积极的推动作用。The rapid development of new energy vehicles and the promotion of electric vehicles on a global scale have driven the development of electric vehicle charging stations. The popularity of electric vehicle charging stations will be the basic guarantee for the rapid industrialization of new energy vehicles. As an important part of the electric vehicle industry chain, the charging station complements the electric vehicle and plays a positive role in promoting the rapid rise of the electric vehicle market.
电动汽车产业发展是我国“十二五”重点规划项目，也是我国汽车和相关产业难得的机遇和挑战。目前市场上的充电桩电缆需求均根据各类充电枪 及充电桩企业的要求去设计排布的，存在不统一性。The development of electric vehicle industry is China's "12th Five-Year Plan" key planning project, and it is also a rare opportunity and challenge for China's automobile and related industries. At present, the demand for charging pile cables on the market is designed according to the requirements of various types of charging guns and charging pile enterprises, and there is inconsistency.
电动汽车充电模式以及充电设施建设是整个产业健康发展的基础和前提，应在政策支持指导下结合电动汽车发展阶段、车辆种类和运行特点科学规划、合理布局、统一标准，为电动汽车提供更完善的充电服务。The charging mode of electric vehicles and the construction of charging facilities are the basis and premise of the healthy development of the whole industry. Under the guidance of policy support, the scientific planning, rational layout and unified standards of electric vehicle development stage, vehicle type and operation characteristics should be combined to provide better electric vehicles. Charging service.
发明内容Summary of the invention
发明目的：为了解决现有技术的不足，本发明提供了一种耐磨耐扭转环保型电动汽车充电用电缆及其制备方法。OBJECT OF THE INVENTION In order to solve the deficiencies of the prior art, the present invention provides a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable and a preparation method thereof.
技术方案：一种耐磨耐扭转环保型电动汽车充电用电缆，包括线芯和护套，所述线芯外套有护套；Technical solution: a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable, comprising a core and a sheath, wherein the core jacket has a sheath;
所述线芯内包括两根动力线芯、一根接地线芯、两根低压辅助线芯和信号控制线芯，并采用加捻阻燃PP绳进行填充，多线芯绞合后，外面绕包一层无纺布；The wire core comprises two power wire cores, one ground wire core, two low-voltage auxiliary wire cores and a signal control core, and is filled with a twisted flame-retardant PP rope, and the multi-core core is twisted and wound outside. a layer of non-woven fabric;
所述动力线芯由导体和绝缘层组成，所述导体外套有绝缘层；The power wire core is composed of a conductor and an insulating layer, and the conductor is jacketed with an insulating layer;
所述信号控制线芯内设有充电连接线、充电确认线、温控线、电子锁线，所述信号控制线芯外套有复合屏蔽层。The signal control core is provided with a charging connection line, a charging confirmation line, a temperature control line and an electronic lock line, and the signal control core has a composite shielding layer.
作为优化：所述护套材料选用聚氨酯弹性体。As an optimization: the sheath material is selected from a polyurethane elastomer.
作为优化：所述绝缘层选用乙丙橡胶混合物。As an optimization: the insulating layer is made of an ethylene-propylene rubber mixture.
作为优化：所述复合屏蔽层采用铝塑复合带与镀锡铜丝复合屏蔽的方式：绝缘线芯外绕包一层铝塑复合带，然后用镀锡铜丝编织，铝塑复合带的铝面与编织铜丝直接接触。As an optimization: the composite shielding layer adopts a composite mode of aluminum-plastic composite tape and tin-plated copper wire: an insulated wire core is wrapped with a layer of aluminum-plastic composite tape, and then woven with tinned copper wire, aluminum of aluminum-plastic composite tape The surface is in direct contact with the braided copper wire.
一种耐磨耐扭转环保型电动汽车充电用电缆的制备方法，包括如下步骤：导体绞合、绝缘挤出、屏蔽层、内衬层、线芯成缆和护套挤出，其中，线芯成缆和护套挤出是电缆制造的关键工艺；具体操作如下：A method for preparing a wear-resistant and torsion-resistant electric vehicle charging cable comprises the following steps: conductor stranding, insulation extrusion, shielding layer, inner liner layer, core stranding and sheath extrusion, wherein the core Cable and sheath extrusion are key processes in cable manufacturing; the specific operations are as follows:
所述线芯成缆中：电缆包括两根动力线芯、一根接地线芯、两根低压辅助线芯和6～12芯的信号控制线芯，线芯结构不一致，多线芯的成缆成为电缆后续生产的关键，采用加捻阻燃PP绳填充(纯聚丙烯填充绳)，多线芯绞合后，外面绕包一层无纺布；绕包方向与成缆方向相同，成缆节距比为14倍；The core is cabled: the cable comprises two power cores, one ground core, two low voltage auxiliary cores and 6-12 core signal control cores, the core structure is inconsistent, and the multi-core core is cabled. It becomes the key to the subsequent production of cable. It is filled with twisted flame-retardant PP rope (pure polypropylene filled rope). After multi-core core stranding, the outer layer is wrapped with a layer of non-woven fabric; the wrapping direction is the same as the cabling direction, and the cable is wound. The pitch ratio is 14 times;
所述护套挤出中：护套材料选用聚氨酯弹性体，硬度在80±3A，，能够使最小弯曲半径达到5D；外护套生产采用90型挤塑机，挤出外径φ22.0-φ60mm，最大生产速度70m/min，采用螺杆的长径比20～30，压缩比2～4之间的单螺杆挤出机挤出；In the jacket extrusion: the sheath material is made of polyurethane elastomer with hardness of 80±3A, which can make the minimum bending radius reach 5D; the outer sheath is produced by 90-type extruder, and the outer diameter of the extrusion is φ22.0- Φ60mm, the maximum production speed is 70m/min, and the single-screw extruder with a ratio of long diameter to diameter of 20 to 30 and a compression ratio of 2 to 4 is extruded;
采用挤出机头淋水装置，让线芯从模具口挤出后立即淋水冷却，以确保护套表面光滑圆整，在生产之前在85℃下烘干1～2h,确保生产出来的护层切面无气孔。The extruder head watering device is used to allow the core to be sprayed and cooled immediately after being extruded from the die mouth to ensure that the surface of the sheath is smooth and round, and dried at 85 ° C for 1 to 2 hours before production to ensure the production of the protection. The sliced surface has no pores.
作为优化：所述导体绞合中：导体需要经过中拉、小拉、退火(镀锡)等过程，成为合格的铜单丝；针对不同的拉丝设备和单丝规格，采取不同的拉丝速度；退火温度T≈(0.35～0.40)Tb，工业上选择再结晶退火温度时一般比最低再结晶温度高100～200℃，确保铜单丝伸长率大于20％，单丝20℃的电阻率小于0.017241Ω.mm2/m；As an optimization: in the stranding of the conductor: the conductor needs to undergo a process of medium pulling, small pulling, annealing (tinning) to become a qualified copper monofilament; different drawing speeds are adopted for different wire drawing equipment and monofilament specifications; Annealing temperature T≈(0.35～0.40)Tb, industrially selected recrystallization annealing temperature is generally higher than the minimum recrystallization temperature by 100～200°C, ensuring the elongation of copper monofilament is more than 20%, and the resistivity of monofilament 20°C is less than 0.017241Ω.mm2/m;
拉丝过程采用聚晶模、导体生产采用钻石模，确保出线径稳定，导体结 构均匀；拉丝液浓度控制在7～8％，定期对其进行检测和更换；拉丝液温度控制在35～40℃；pH值控制在7～8。The drawing process adopts polycrystalline mold and conductor production using diamond mold to ensure stable wire diameter and uniform conductor structure; the concentration of drawing liquid is controlled at 7~8%, and it is regularly tested and replaced; the temperature of drawing liquid is controlled at 35~40 °C; The pH is controlled at 7-8.
作为优化：所述绝缘挤出中：绝缘材料选用乙丙橡胶混合物，绝缘生产采用连续硫化工艺：通过冷喂料挤出机挤出，采用蒸汽硫化管道进行硫化，硫化是一个交联过程，需要一定的时间才能完成，对于定性配方的胶料，在一定的硫化温度和压力条件下，有一定适宜硫化时间。As an optimization: in the insulation extrusion: the insulation material is made of ethylene-propylene rubber mixture, and the insulation production adopts continuous vulcanization process: extrusion through cold feed extruder, vulcanization by steam vulcanization pipe, vulcanization is a cross-linking process, need It can be completed in a certain period of time. For the compound of the qualitative formula, under certain conditions of vulcanization temperature and pressure, there is a certain suitable vulcanization time.
作为优化：所述屏蔽层中：采用铝塑复合带与镀锡铜丝复合屏蔽的方式：绝缘线芯外绕包一层铝塑复合带，然后用镀锡铜丝编织，铝塑复合带的铝面与编织铜丝直接接触；通过增加锭子总数、减小每锭根数和单丝线径，控制编织角在45°以下。As an optimization: in the shielding layer: the aluminum-plastic composite tape and the tin-plated copper wire composite shielding method: the insulating core is wrapped with a layer of aluminum-plastic composite tape, and then woven with tinned copper wire, aluminum-plastic composite tape The aluminum surface is in direct contact with the braided copper wire; by increasing the total number of spindles, reducing the number of spindles and the diameter of the monofilament, the braiding angle is controlled below 45°.
有益效果：本发明是采用自主研发的高性能乙丙橡胶材料作为电缆的绝缘料，性能优异的弹性体材料作为护套材料，能够承受高、低温频繁变化，耐气候、耐紫外线性能优异，可以在室外长期使用。具有优异的耐磨、耐卷绕、耐移动疲劳性能。采用合理的结构设计：绝缘线芯合理布局绞合保证电缆具有常温、低温抗扭转特性。提高电缆整体的使用环境性能及电缆的抗老化使用寿命，电缆使用寿命达10年。The invention has the advantages that the high-performance ethylene-propylene rubber material independently developed by the invention is used as the insulating material of the cable, and the elastomer material with excellent performance is used as the sheath material, can withstand frequent changes of high and low temperature, has excellent weather resistance and ultraviolet resistance, and can Long-term use outdoors. It has excellent wear resistance, winding resistance and resistance to moving fatigue. Adopt reasonable structural design: the reasonable layout of insulated wire cores ensures that the cable has normal temperature and low temperature anti-torque characteristics. Improve the overall environmental performance of the cable and the anti-aging life of the cable, and the cable life is up to 10 years.
本发明产品采用的绝缘材料及护套材料与市场同类材料相比具有性能突出，除了满足电缆的性能需求外，还有无卤，无毒优势，是环保产品，对环境无害。The insulating material and sheath material used in the product of the invention have outstanding performance compared with similar materials on the market. In addition to satisfying the performance requirements of the cable, there is no halogen, no toxic advantage, and it is an environmentally friendly product and is harmless to the environment.
电动汽车传导充电***用电缆作为连接电动汽车充电装置与充电基础设 施的桥梁，对电动汽车进行电力传输具有优异的传输性能、柔软性能及耐环境性能，适用于新能源电动汽车与充电站的数据信息及电力传输。该类产品对环保起到重要意义。Electric vehicle conduction charging system cable is used as a bridge connecting electric vehicle charging device and charging infrastructure. It has excellent transmission performance, soft performance and environmental resistance for power transmission of electric vehicles. It is suitable for data of new energy electric vehicles and charging stations. Information and power transmission. This type of product plays an important role in environmental protection.
附图说明DRAWINGS
图1是本发明的制备方法流程示意图；1 is a schematic flow chart of a preparation method of the present invention;
图2是本发明的结构示意图。Figure 2 is a schematic view of the structure of the present invention.
具体实施方式Detailed ways
下面将对本发明实施例中的技术方案进行清楚、完整地描述，以使本领域的技术人员能够更好的理解本发明的优点和特征，从而对本发明的保护范围做出更为清楚的界定。本发明所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例，基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described in the following, so that those skilled in the art can better understand the advantages and features of the present invention, and the scope of the present invention is more clearly defined. The embodiments described herein are merely a part of the embodiments of the present invention, and not all of the embodiments, and all other implementations obtained by those skilled in the art without creative efforts based on the embodiments of the present invention. For example, all fall within the scope of protection of the present invention.
实施例Example
如图1-2所示，一种耐磨耐扭转环保型电动汽车充电用电缆，包括线芯1和护套2，所述线芯1外套有护套2。所述护套2材料选用聚氨酯弹性体。As shown in FIG. 1-2, a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable includes a core 1 and a sheath 2, and the core 1 is sheathed with a sheath 2. The material of the sheath 2 is selected from a polyurethane elastomer.
所述线芯1内包括两根动力线芯11、一根接地线芯12、两根低压辅助线芯13和信号控制线芯14，并采用加捻阻燃PP绳进行填充，多线芯绞合后，外面绕包一层无纺布。The core 1 includes two power cores 11, a ground core 12, two low-voltage auxiliary cores 13 and a signal control core 14, and is filled with a twisted flame-retardant PP rope, and the multi-core core is twisted. After the combination, the outer layer is wrapped with a layer of non-woven fabric.
所述动力线芯11由导体111和绝缘层112组成，所述导体111外套有绝缘层112；所述绝缘层112选用乙丙橡胶混合物。The power core 11 is composed of a conductor 111 and an insulating layer 112. The conductor 111 is covered with an insulating layer 112; and the insulating layer 112 is made of an ethylene-propylene rubber mixture.
所述信号控制线芯14内设有充电连接线141、充电确认线142、温控线143、电子锁线144，所述信号控制线芯14外套有复合屏蔽层145。The signal control core 14 is provided with a charging connection line 141, a charging confirmation line 142, a temperature control line 143, and an electronic lock line 144. The signal control core 14 is covered with a composite shielding layer 145.
所述复合屏蔽层145采用铝塑复合带与镀锡铜丝复合屏蔽的方式：绝缘线芯外绕包一层铝塑复合带，然后用镀锡铜丝编织，铝塑复合带的铝面与编织铜丝直接接触。The composite shielding layer 145 adopts a composite mode of aluminum-plastic composite tape and tin-plated copper wire: an insulated wire core is wrapped with a layer of aluminum-plastic composite tape, and then woven with tinned copper wire, and the aluminum surface of the aluminum-plastic composite tape is Braided copper wire is in direct contact.
本发明中的电动汽车充电用电缆生产工艺主要包括导体绞合、绝缘挤出、屏蔽层、内衬层、线芯成缆和护套挤出，其中线芯成缆和护套挤出是电缆制造的关键工艺。The electric vehicle charging cable production process of the invention mainly comprises conductor stranding, insulation extrusion, shielding layer, inner liner layer, core stranding and sheath extrusion, wherein the core cable forming and sheath extrusion are cables. The key process of manufacturing.
(1)导体绞合(1) Conductor stranding
电缆对于动力线芯、接地线、控制信号线、辅助线等导体均采用6类绞合裸铜，导体需要经过中拉、小拉、退火(镀锡)等过程，成为合格的铜单丝。在生产过程中严格控制每一道工序的半成品质量。针对不同的拉丝设备和单丝规格，采取不同的拉丝速度；退火温度T≈(0.35～0.40)Tb，工业上选择再结晶退火温度时一般比最低再结晶温度高100～200℃，确保铜单丝伸长率大于20％，单丝20℃的电阻率小于0.017241Ω.mm2/m。拉丝过程采用聚晶模、导体生产采用钻石模，确保出线径稳定，导体结构均匀。拉丝液浓度控制在7～8％，定期对其进行检测和更换；拉丝液温度控制在35～40℃；pH值控制在7～8，可以有效防止酸碱试剂对铜材的氧化、对拉丝模的腐蚀以及滋生细菌。For the power core, grounding wire, control signal wire, auxiliary wire and other conductors, the cable is made of 6 types of bare copper. The conductor needs to be subjected to medium pulling, small pulling, annealing (tinning) and other processes to become qualified copper monofilament. Strictly control the quality of semi-finished products in each process during the production process. Different drawing speeds are adopted for different wire drawing equipment and monofilament specifications; annealing temperature T≈(0.35～0.40)Tb, industrial selection of recrystallization annealing temperature is generally higher than the minimum recrystallization temperature by 100～200°C, ensuring copper single The wire elongation is greater than 20%, and the resistivity of the monofilament at 20 ° C is less than 0.017241 Ω·mm 2 /m. The drawing process adopts polycrystalline mold and conductor production using diamond mold to ensure stable wire diameter and uniform conductor structure. The concentration of the drawing liquid is controlled at 7 to 8%, and it is regularly detected and replaced; the temperature of the drawing liquid is controlled at 35 to 40 ° C; the pH value is controlled at 7 to 8, which can effectively prevent the oxidation of the copper material by the acid-base reagent, and the drawing Corrosion of the mold and the growth of bacteria.
(2)绝缘挤出(2) Insulation extrusion
绝缘材料选用乙丙橡胶混合物，汽车充电电缆在使用过程中会经常反复弯曲、拖曳，因此要求其有较好的柔软性，导体、成缆节距比的控制均可以有效的改善产品的柔软性。The insulating material is made of ethylene-propylene rubber mixture. The charging cable of the car is often repeatedly bent and towed during use. Therefore, it is required to have better flexibility. The control of conductor and cable pitch ratio can effectively improve the softness of the product. .
绝缘生产采用连续硫化工艺，即通过冷喂料挤出机挤出，采用蒸汽硫化管道进行硫化。以一根截面积为1.5mm2的绝缘线芯为例，具体工艺参数如下:选用单65挤出机，挤出机各区温度螺杆60℃，机身一区70℃，机身一区73℃，机头81℃；出线速度32m/min；水位20％(实际硫化段长度约90m)；蒸汽压 力，1.4MPa(实际管道蒸汽温度197℃)。硫化是一个交联过程，需要一定的时间才能完成。对于定性配方的胶料，在一定的硫化温度和压力条件下，有一定适宜硫化时间(相对于正常硫化时间)，对于乙丙橡胶而言,硫化时间过短，会产生欠硫，硫化时间过长虽不太可能产生过硫(导致硫化胶性能降低)，但会影响硫化生产的效率。通过适当压力下的硫化，有这几个优点：①增加绝缘表面光滑度,提高外观品质；②防止乙丙胶在硫化过程中产生气泡，提高胶料的密致性；③使胶料易于流动和充满模腔；④提高胶料的黏合强度；⑤有助于提高硫化胶的物理机械性能。The insulation production is carried out by a continuous vulcanization process, that is, extrusion through a cold feed extruder and vulcanization using a steam vulcanization pipe. Taking an insulated core with a cross-sectional area of 1.5mm2 as an example, the specific process parameters are as follows: a single 65 extruder is used, the temperature of the extruder is 60 °C, the fuselage is 70 °C, and the fuselage is 73 °C. The head is 81 ° C; the outlet speed is 32 m / min; the water level is 20% (the actual vulcanization length is about 90 m); the steam pressure is 1.4 MPa (the actual pipe steam temperature is 197 ° C). Vulcanization is a cross-linking process that takes a certain amount of time to complete. For the qualitative formula of the compound, under certain vulcanization temperature and pressure conditions, there is a certain suitable vulcanization time (relative to the normal vulcanization time). For ethylene-propylene rubber, the vulcanization time is too short, and the sulfur will be produced. Although it is unlikely to produce excessive sulfur (resulting in reduced vulcanizate performance), it will affect the efficiency of vulcanization production. Through vulcanization under appropriate pressure, there are several advantages: 1 increase the smoothness of the insulating surface and improve the appearance quality; 2 prevent the ethylene-propylene rubber from generating bubbles during the vulcanization process, and improve the density of the rubber; 3 making the rubber easy to flow And fill the cavity; 4 improve the bonding strength of the rubber; 5 helps to improve the physical and mechanical properties of the vulcanizate.
(3)线芯成缆(3) Wire core cable
电缆包括两根动力线芯、一根接地线芯、两根低压辅助线芯和6～12芯的信号控制线芯，线芯结构不一致，多线芯的成缆成为电缆后续生产的关键。采用加捻阻燃PP绳填充(纯聚丙烯填充绳)，多线芯绞合后，外面绕包一层无纺布。绕包方向、成缆绞向以及成缆节距比是电缆成缆生产的关键影响因素，绕包方向与成缆方向相同，14倍的节距比。减少成缆节距比，可以有效的改善成缆后线芯的柔软性，节距比越小，线芯越柔软，相比较节距比为16的成缆线芯，挤包外护套后产品的最小弯曲半径可以达到5D，能够经受长期的反复使用及弯曲。The cable consists of two power cores, one grounding core, two low-voltage auxiliary cores and 6-12 core signal control cores. The core structure is inconsistent. The multi-core cable is the key to the subsequent production of the cable. It is filled with a twisted flame-retardant PP rope (pure polypropylene filled rope). After twisting the multi-core core, a non-woven fabric is wrapped around the outside. The winding direction, the cable twisting direction and the cable pitch ratio are the key influencing factors for the cable production. The winding direction is the same as the cable forming direction, and the pitch ratio is 14 times. Reducing the cable pitch ratio can effectively improve the flexibility of the core after cable formation. The smaller the pitch ratio, the softer the core, compared to the cable core with a pitch ratio of 16, after the outer sheath is squeezed With a minimum bend radius of 5D, the product can withstand repeated use and bending over a long period of time.
(4)屏蔽层(4) Shield
采用铝塑复合带与镀锡铜丝复合屏蔽的方式。研究了编织参数对转移阻抗的影响，通过增加锭子总数、减小每锭根数和单丝线径，控制编织角在45°以下的工艺可以降低屏蔽层的转移阻抗，提高电缆的屏蔽能力。比较了两种屏蔽工艺对屏蔽效率的影响，其中工艺1：绝缘线芯外绕包一层铝塑复合带，然后用镀锡铜丝编织，铝塑复合带的铝面与编织铜丝直接接触；工艺2：绝缘线芯外直接用镀锡铜丝编织。上述两种工艺要求编织密度不小于85％，对两 种屏蔽工艺制备的样品进行表面转移阻抗测试，测试结果(见表1)很明显工艺1具有更低的表面转移阻抗，确定屏蔽工艺。It adopts the method of composite shielding of aluminum-plastic composite tape and tinned copper wire. The influence of braiding parameters on the transfer impedance is studied. By increasing the total number of spindles, reducing the number of spindles and the diameter of the monofilament, the process of controlling the braiding angle below 45° can reduce the transfer impedance of the shield layer and improve the shielding ability of the cable. The effects of two shielding processes on the shielding efficiency were compared. The process 1: the insulated core was wrapped with a layer of aluminum-plastic composite tape, and then woven with tinned copper wire. The aluminum surface of the aluminum-plastic composite tape was in direct contact with the braided copper wire. Process 2: The outer core of the insulated wire is directly woven with tinned copper wire. The above two processes require a braiding density of not less than 85%. The surface transfer impedance test is performed on the samples prepared by the two shielding processes. The test results (see Table 1) are obvious. Process 1 has a lower surface transfer impedance and determines the shielding process.
表1 信号或控制线芯屏蔽层表面转移阻抗Table 1 Signal or control core shield surface transfer impedance
工艺方法Process method 试验频率Test frequency 转移阻抗mΩ/mTransfer impedance mΩ/m
工艺1Process 1 30MHz30MHz 42.73mΩ/m42.73mΩ/m
工艺2Process 2 30MHz30MHz 67.64mΩ/m67.64mΩ/m
(5)护套挤出(5) sheath extrusion
护套材料选用聚氨酯弹性体(TPU)，通过对充电电缆的成品线芯进行最小弯曲半径试验，确定材料的硬度在80±3A，这一硬度可以有效的保证产品的使用中的反复弯曲，能够使最小弯曲半径达到5D。外护套生产采用90型挤塑机，挤出外径φ22.0-φ60mm，最大生产速度70m/min，采用螺杆的长径比20～30，压缩比2～4之间的普通单螺杆挤出机挤出。由于聚氨酯弹性体(TPU)材料的流动性较好，生产操作对于偏心度的控制较难，采用挤出机头淋水装置，让线芯从模具口挤出后立即淋水冷却，以确保护套表面光滑圆整，由于聚氨酯弹性体(TPU)材料的特性容易吸潮，在生产之前需85℃烘干1～2h,确保生产出来的护层切面无气孔。The sheath material is made of polyurethane elastomer (TPU). The minimum bending radius test is performed on the finished wire core of the charging cable to determine the hardness of the material is 80±3A. This hardness can effectively ensure the repeated bending of the product during use. Make the minimum bend radius reach 5D. The outer sheath is produced by a 90-type extruder with an outer diameter of φ22.0-φ60mm, a maximum production speed of 70m/min, a common single-screw extrusion with a screw diameter ratio of 20 to 30 and a compression ratio of 2 to 4. Take out the machine. Due to the good fluidity of the polyurethane elastomer (TPU) material, it is difficult to control the eccentricity of the production operation. The extruder head watering device is used to allow the core to be sprayed and cooled immediately after being extruded from the die mouth to ensure protection. The surface of the sleeve is smooth and round. Due to the characteristics of the polyurethane elastomer (TPU) material, it is easy to absorb moisture. It needs to be dried at 85 °C for 1~2 hours before production to ensure that the produced cut surface has no pores.
本发明是采用自主研发的高性能乙丙橡胶材料作为电缆的绝缘料，性能优异的弹性体材料作为护套材料，能够承受高、低温频繁变化，耐气候、耐紫外线性能优异，可以在室外长期使用。具有优异的耐磨、耐卷绕、耐移动疲劳性能。采用合理的结构设计：绝缘线芯合理布局绞合保证电缆具有常温、低温抗扭转特性。提高电缆整体的使用环境性能及电缆的抗老化使用寿命，电缆使用寿命达10年。The invention adopts the self-developed high-performance ethylene-propylene rubber material as the insulating material of the cable, and the elastic material with excellent performance is used as the sheath material, can withstand frequent changes of high and low temperature, has excellent weather resistance and ultraviolet resistance, and can be used outdoors for a long time. use. It has excellent wear resistance, winding resistance and resistance to moving fatigue. Adopt reasonable structural design: the reasonable layout of insulated wire cores ensures that the cable has normal temperature and low temperature anti-torque characteristics. Improve the overall environmental performance of the cable and the anti-aging life of the cable, and the cable life is up to 10 years.
本发明产品采用的绝缘材料及护套材料与市场同类材料相比具有性能突出，除了满足电缆的性能需求外，还有无卤，无毒优势，是环保产品，对环境无害。The insulating material and sheath material used in the product of the invention have outstanding performance compared with similar materials on the market. In addition to satisfying the performance requirements of the cable, there is no halogen, no toxic advantage, and it is an environmentally friendly product and is harmless to the environment.
电动汽车传导充电***用电缆作为连接电动汽车充电装置与充电基础设施的桥梁，对电动汽车进行电力传输具有优异的传输性能、柔软性能及耐环境性能，适用于新能源电动汽车与充电站的数据信息及电力传输。该类产品对环保起到重要意义。Electric vehicle conduction charging system cable is used as a bridge connecting electric vehicle charging device and charging infrastructure. It has excellent transmission performance, soft performance and environmental resistance for power transmission of electric vehicles. It is suitable for data of new energy electric vehicles and charging stations. Information and power transmission. This type of product plays an important role in environmental protection.

Claims (8)

  1. 一种耐磨耐扭转环保型电动汽车充电用电缆，其特征在于：包括线芯(1)和护套(2)，所述线芯(1)外套有护套(2)；A wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable, comprising: a core (1) and a sheath (2), the core (1) is jacketed with a sheath (2);
    所述线芯(1)内包括两根动力线芯(11)、一根接地线芯(12)、两根低压辅助线芯(13)和信号控制线芯(14)，并采用加捻阻燃PP绳进行填充，多线芯绞合后，外面绕包一层无纺布；The wire core (1) comprises two power wire cores (11), one ground wire core (12), two low voltage auxiliary wire cores (13) and a signal control wire core (14), and is twisted and blocked. The PP rope is filled for filling, and after the multi-core core is stranded, a non-woven fabric is wrapped around the outside;
    所述动力线芯(11)由导体(111)和绝缘层(112)组成，所述导体(111)外套有绝缘层(112)；The power core (11) is composed of a conductor (111) and an insulating layer (112), and the conductor (111) is covered with an insulating layer (112);
    所述信号控制线芯(14)内设有充电连接线(141)、充电确认线(142)、温控线(143)、电子锁线(144)，所述信号控制线芯(14)外套有复合屏蔽层(145)。The signal control core (14) is provided with a charging connection line (141), a charging confirmation line (142), a temperature control line (143), an electronic lock line (144), and the signal control core (14) jacket There is a composite shield (145).
  2. 根据权利要求1所述的耐磨耐扭转环保型电动汽车充电用电缆，其特征在于：所述护套(2)材料选用聚氨酯弹性体。The wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable according to claim 1, wherein the sheath (2) is made of a polyurethane elastomer.
  3. 根据权利要求1所述的耐磨耐扭转环保型电动汽车充电用电缆，其特征在于：所述绝缘层(112)选用乙丙橡胶混合物。The wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable according to claim 1, wherein the insulating layer (112) is made of an ethylene-propylene rubber mixture.
  4. 根据权利要求1所述的耐磨耐扭转环保型电动汽车充电用电缆，其特征在于：所述复合屏蔽层(145)采用铝塑复合带与镀锡铜丝复合屏蔽的方式：绝缘线芯外绕包一层铝塑复合带，然后用镀锡铜丝编织，铝塑复合带的铝面与编织铜丝直接接触。The wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable according to claim 1, wherein the composite shielding layer (145) adopts a composite mode of aluminum-plastic composite tape and tin-plated copper wire: an insulated core Wrap a layer of aluminum-plastic composite tape, and then weave it with tinned copper wire. The aluminum surface of the aluminum-plastic composite tape is in direct contact with the braided copper wire.
  5. 一种根据权利要求1所述的耐磨耐扭转环保型电动汽车充电用电缆的制备方法，其特征在于：包括如下步骤：导体绞合、绝缘挤出、屏蔽层、内衬层、线芯成缆和护套挤出，其中，线芯成缆和护套挤出是电缆制造的关键工艺；具体操作如下：A method for preparing a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable according to claim 1, comprising the steps of: conductor stranding, insulation extrusion, shielding layer, inner liner layer, and wire core forming Cable and sheath extrusion, where core and cable extrusion are key processes in cable manufacturing; the specific operations are as follows:
    所述线芯成缆中：电缆包括两根动力线芯、一根接地线芯、两根低压辅助线芯和6～12芯的信号控制线芯，线芯结构不一致，多线芯的成缆成为电缆后续生产的关键，采用加捻阻燃PP绳填充(纯聚丙烯填充绳)，多线芯绞合后，外面绕包一层无纺布；绕包方向与成缆方向相同，成缆节距比为14倍；The core is cabled: the cable comprises two power cores, one ground core, two low voltage auxiliary cores and 6-12 core signal control cores, the core structure is inconsistent, and the multi-core core is cabled. It becomes the key to the subsequent production of cable. It is filled with twisted flame-retardant PP rope (pure polypropylene filled rope). After multi-core core stranding, the outer layer is wrapped with a layer of non-woven fabric; the wrapping direction is the same as the cabling direction, and the cable is wound. The pitch ratio is 14 times;
    所述护套挤出中：护套材料选用聚氨酯弹性体，硬度在80±3A，，能够使最小弯曲半径达到5D；外护套生产采用90型挤塑机，挤出外径φ22.0-φ60mm，最大生产速度70m/min，采用螺杆的长径比20～30，压缩比2～4之间的单螺杆挤出机挤出；In the jacket extrusion: the sheath material is made of polyurethane elastomer with hardness of 80±3A, which can make the minimum bending radius reach 5D; the outer sheath is produced by 90-type extruder, and the outer diameter of the extrusion is φ22.0- Φ60mm, the maximum production speed is 70m/min, and the single-screw extruder with a ratio of long diameter to diameter of 20 to 30 and a compression ratio of 2 to 4 is extruded;
    采用挤出机头淋水装置，让线芯从模具口挤出后立即淋水冷却，以确保护套表面光滑圆整，在生产之前在85℃下烘干1～2h,确保生产出来的护层切面无气孔。The extruder head watering device is used to allow the core to be sprayed and cooled immediately after being extruded from the die mouth to ensure that the surface of the sheath is smooth and round, and dried at 85 ° C for 1 to 2 hours before production to ensure the production of the protection. The sliced surface has no pores.
  6. 根据权利要求5所述的耐磨耐扭转环保型电动汽车充电用电缆的制备方法，其特征在于：所述导体绞合中：导体需要经过中拉、小拉、退火(镀锡)等过程，成为合格的铜单丝；针对不同的拉丝设备和单丝规格，采取不同的拉丝速度；退火温度T≈(0.35～0.40)Tb，工业上选择再结晶退火温度时一般比最低再结晶温度高100～200℃，确保铜单丝伸长率大于20％，单丝20℃的电阻率小于0.017241Ω.mm2/m；The method for preparing a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable according to claim 5, wherein in the stranding of the conductor, the conductor needs to undergo a process of medium pulling, small pulling, annealing (tin plating), and the like. Become a qualified copper monofilament; take different drawing speeds for different wire drawing equipment and monofilament specifications; annealing temperature T≈(0.35～0.40)Tb, industrially choose recrystallization annealing temperature generally higher than minimum recrystallization temperature 100 ~200 ° C, to ensure that the elongation of copper monofilament is greater than 20%, the resistivity of monofilament 20 ° C is less than 0.017241 Ω.mm2 / m;
    拉丝过程采用聚晶模、导体生产采用钻石模，确保出线径稳定，导体结构均匀；拉丝液浓度控制在7～8％，定期对其进行检测和更换；拉丝液温度控制在35～40℃；pH值控制在7～8。The drawing process adopts polycrystalline mold and conductor production using diamond mold to ensure stable wire diameter and uniform conductor structure; the concentration of drawing liquid is controlled at 7~8%, and it is regularly tested and replaced; the temperature of drawing liquid is controlled at 35~40 °C; The pH is controlled at 7-8.
  7. 根据权利要求5所述的耐磨耐扭转环保型电动汽车充电用电缆的制备方法，其特征在于：所述绝缘挤出中：绝缘材料选用乙丙橡胶混合物，绝缘生产采用连续硫化工艺：通过冷喂料挤出机挤出，采用蒸汽硫化管道进行硫化，硫化是一个交联过程，需要一定的时间才能完成，对于定性配方的胶料，在 一定的硫化温度和压力条件下，有一定适宜硫化时间。The method for preparing a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable according to claim 5, characterized in that: in the insulation extrusion: an ethylene-propylene rubber mixture is used as the insulating material, and the continuous vulcanization process is adopted in the insulation production: through the cold The extrusion extruder extrudes and vulcanizes with a steam vulcanization pipe. Vulcanization is a cross-linking process that takes a certain amount of time to complete. For a qualitatively formulated compound, it is suitable for vulcanization under certain vulcanization temperature and pressure conditions. time.
  8. 根据权利要求5所述的耐磨耐扭转环保型电动汽车充电用电缆的制备方法，其特征在于：所述屏蔽层中：采用铝塑复合带与镀锡铜丝复合屏蔽的方式：绝缘线芯外绕包一层铝塑复合带，然后用镀锡铜丝编织，铝塑复合带的铝面与编织铜丝直接接触；通过增加锭子总数、减小每锭根数和单丝线径，控制编织角在45°以下。The method for preparing a wear-resistant and torsion-resistant environment-friendly electric vehicle charging cable according to claim 5, characterized in that: in the shielding layer: a composite mode of aluminum-plastic composite tape and tin-plated copper wire is used: insulated core The outer layer is wrapped with a layer of aluminum-plastic composite tape, and then woven with tinned copper wire. The aluminum surface of the aluminum-plastic composite tape is in direct contact with the braided copper wire; the weaving is controlled by increasing the total number of spindles, reducing the number of spindles and the diameter of the monofilament. The angle is below 45°.
PCT/CN2018/094543 2017-08-30 2018-07-04 Wear-resistant, torsion-resistant and environmentally friendly cable for electrical vehicle charging and preparation method therefor WO2019042009A1 (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107516552A (en) * 2017-08-30 2017-12-26 中天科技装备电缆有限公司 A kind of wear-resisting resistance to torsion environment-friendly type cable for charging electric automobiles and its preparation technology
CN110211727A (en) * 2018-06-27 2019-09-06 上海福尔欣线缆有限公司 Automobile trunk opens cable and its manufacturing method
CN110544559B (en) * 2019-09-27 2024-02-23 信达科创（唐山）石油设备有限公司 Logging packaging cable and preparation method thereof
CN110828033A (en) * 2019-11-08 2020-02-21 中国船舶重工集团公司第七0四研究所 Scrape-abrasion-resistant seawater corrosion-resistant degaussing cable and processing technology thereof
CN115966332A (en) * 2022-09-05 2023-04-14 广东粤缆电线电缆有限公司 Charging cable for electric automobile and preparation process thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202632798U (en) * 2012-04-16 2012-12-26 中特华星电缆股份有限公司 New energy automobile DC charging special-purpose cable
CN104681159A (en) * 2015-03-18 2015-06-03 中天科技装备电缆有限公司 Lightweight flexible LSOH (Low Smoke Zero Halogen) fire-resistant low-voltage marine cable and process flow thereof
CN205069202U (en) * 2015-09-24 2016-03-02 深圳市联嘉祥科技股份有限公司 Electric automobile quick charge cable
CN206412136U (en) * 2016-12-31 2017-08-15 深圳市标顶科技有限公司 A kind of electric automobile intelligent charge cable
CN107516552A (en) * 2017-08-30 2017-12-26 中天科技装备电缆有限公司 A kind of wear-resisting resistance to torsion environment-friendly type cable for charging electric automobiles and its preparation technology
CN207165249U (en) * 2017-08-30 2018-03-30 中天科技装备电缆有限公司 A kind of wear-resisting resistance to torsion environment-friendly type cable for charging electric automobiles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202632798U (en) * 2012-04-16 2012-12-26 中特华星电缆股份有限公司 New energy automobile DC charging special-purpose cable
CN104681159A (en) * 2015-03-18 2015-06-03 中天科技装备电缆有限公司 Lightweight flexible LSOH (Low Smoke Zero Halogen) fire-resistant low-voltage marine cable and process flow thereof
CN205069202U (en) * 2015-09-24 2016-03-02 深圳市联嘉祥科技股份有限公司 Electric automobile quick charge cable
CN206412136U (en) * 2016-12-31 2017-08-15 深圳市标顶科技有限公司 A kind of electric automobile intelligent charge cable
CN107516552A (en) * 2017-08-30 2017-12-26 中天科技装备电缆有限公司 A kind of wear-resisting resistance to torsion environment-friendly type cable for charging electric automobiles and its preparation technology
CN207165249U (en) * 2017-08-30 2018-03-30 中天科技装备电缆有限公司 A kind of wear-resisting resistance to torsion environment-friendly type cable for charging electric automobiles

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