WO2017050050A1 - Quick charging cable for electric vehicle and preparation method therefor - Google Patents

Quick charging cable for electric vehicle and preparation method therefor Download PDF

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Publication number
WO2017050050A1
WO2017050050A1 PCT/CN2016/094602 CN2016094602W WO2017050050A1 WO 2017050050 A1 WO2017050050 A1 WO 2017050050A1 CN 2016094602 W CN2016094602 W CN 2016094602W WO 2017050050 A1 WO2017050050 A1 WO 2017050050A1
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WO
WIPO (PCT)
Prior art keywords
wire
layer
charging cable
line
signal transmission
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PCT/CN2016/094602
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French (fr)
Chinese (zh)
Inventor
黄冬莲
张柏宇
赵玲艳
刘红亮
Original Assignee
深圳市联嘉祥科技股份有限公司
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Publication of WO2017050050A1 publication Critical patent/WO2017050050A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables

Definitions

  • the present invention relates to the field of power cable technologies, and in particular, to an electric vehicle quick charging cable resistant to electromagnetic radiation and a preparation method thereof.
  • the key to the electric vehicle fast charging cable is to carry the charging current, to meet the high current fast charging, shorten the charging time of the electric vehicle on the basis of the existing charging, and improve the charging efficiency.
  • the differential mode interference current and the common mode interference current on the charging cable can be directly transmitted to the circuit module or other equipment of the electronic device (such as a charging pile) through the cable, or the electromagnetic field can generate electromagnetic interference in the space, causing the error of the device instruction. Judgment, misuse. For example, the electric car has been fully charged, but due to electromagnetic interference, the charging pile still shows that it is not full, causing the electric car to overcharge.
  • an electric vehicle quick charging cable is provided.
  • the preparation method thereof realizes the technical effect of absorbing electromagnetic waves and resisting electromagnetic radiation in the rapid charging of the electric vehicle.
  • the present invention provides an electric vehicle quick charging cable, comprising: a power power line for transmitting a power source charging current, a grounding wire for providing grounding protection, and an auxiliary charging at a low voltage; Auxiliary power line and signal transmission control line for transmitting a state of charge signal;
  • the power supply line, the ground line, the auxiliary power line, and the signal transmission control line respectively include a copper conductor and an insulating layer covering the outside of the copper conductor; wherein the signal transmission control line and The ground lines are adjacent to each other to form a shortest path of the ground;
  • the signal transmission control line further includes: a nylon wire rope filled on the corresponding insulating layer, a sequentially wound aluminum-plastic composite tape layer, and a tinned copper wire braid layer wrapped on the aluminum-plastic composite tape layer, a conductive adhesive layer coated on the woven layer, and an inner sheath extruded on the conductive adhesive layer;
  • the fast charging cable further includes: a high-strength PP rope filled on a line group formed by the power power line, the ground line, the auxiliary power line, and the signal transmission control line, and sequentially wrapped a tape layer and an outer jacket that is pressed against the tape layer.
  • the copper conductor used in the fast charging cable is oxygen-free copper or single crystal copper subjected to pulse current annealing, and the monofilament diameter of the oxygen-free copper or single crystal copper is less than 0.15 mm.
  • the signal transmission control line includes two insulated wires formed by an outer insulating layer of a copper conductor, and the two insulated wires are twisted, and the lay length is 8 to 10 cm.
  • the tinned copper wire has a diameter of 0.10 mm, and the tinned copper wire braid has a weaving density greater than 85 ⁇ 3 ⁇ 4.
  • the thickness of the insulating layer in the fast charging cable is 0.5-1.8 mm
  • the thickness of the inner sheath is 0.5-0.8 mm
  • the thickness of the outer sheath is 2.2-2.4 mm.
  • the insulating layer in the fast charging cable is made of a thermoplastic TPEE composite material.
  • the inner sheath and the outer sheath are both made of 125 ° C radiation cross-linked low-smoke halogen-free flame retardant polyethylene, the inner sheath and the outer sheath Added graphite powder.
  • the present invention also provides a method for preparing an electric vehicle quick charging cable, comprising the following steps:
  • the electric vehicle quick charging cable includes: a power supply line for transmitting a power source charging current, a ground line for providing grounding protection, an auxiliary power line for auxiliary charging at a low voltage, and a signal transmission control line for transmitting a charging state signal; wherein the power power line, the ground line, the auxiliary power line, and the signal transmission control line respectively comprise a copper conductor and an insulation covering the outside of the copper conductor
  • the signal transmission control line further includes: a nylon wire rope filled on the corresponding insulating layer, a sequentially wound aluminum-plastic composite tape layer, a tinned copper wire braid wrapped on the aluminum-plastic composite tape layer, coated a conductive adhesive layer overlying the woven layer, and an inner sheath extruded on the conductive adhesive layer; the quick charging cable further comprising: filling the power supply line, the ground line, the A high-strength PP rope on the wire set formed by the signal transmission control line and the auxiliary power supply line, a wrap
  • the conductor is made of oxygen-free copper or single crystal copper with a diameter of less than 0.15 mm. After pulse current annealing, the current carrying capacity per unit cross-sectional area is large, meeting the requirements of fast charging.
  • the signal transmission control line is adjacent to the ground line to form a shortest path to the ground to quickly release the interfering electromagnetic waves.
  • the signal transmission control line includes two insulated wires composed of an outer insulating layer of a copper conductor, and the two insulated wires are twisted and twisted by 8 to 10 cm, and the signal transmission control line of the charging cable is subjected to anti-interference and electromagnetic suppression.
  • the utility model effectively solves the technical problem that the electric vehicle quick charging cable in the prior art generates electromagnetic interference in the device in the surrounding space after charging, causing misjudgment and misoperation of the device instruction.
  • FIG. 1 is a schematic cross-sectional view of a rapid charging cable for an electric vehicle according to an embodiment of the present invention
  • FIG. 2 is a flow chart of a method for preparing an electric vehicle quick charging cable according to an embodiment of the present invention.
  • Embodiments of the present invention provide an electric vehicle quick charging cable, which solves the problem that the electric vehicle quick charging cable existing in the prior art generates electromagnetic interference in a device in a surrounding space environment after charging, causing a misjudgment of the device instruction.
  • the technical problem of misoperation has realized the technical effect of quickly charging the electric vehicle, absorbing electromagnetic waves, and resisting electromagnetic radiation.
  • Embodiments of the present invention provide an electric vehicle quick charging cable, including: a power power line for transmitting a power source charging current, a grounding wire for providing grounding protection, and an auxiliary power source for auxiliary charging at a low voltage.
  • the power source line, the ground line, the auxiliary power line, and the signal transmission control line respectively comprise a copper conductor and an insulation covering the outside of the copper conductor
  • the signal transmission control line is adjacent to the ground line to form a shortest path of the ground;
  • the signal transmission control line further includes: a nylon wire rope filled on the corresponding insulating layer, and successively wound aluminum-plastic composite a belt layer, a tinned copper wire braid wrapped on the aluminum-plastic composite tape layer, a conductive adhesive layer coated on the braid layer, and an inner sheath extruded on the conductive adhesive layer;
  • the quick charging cable further includes: filling the power power line, the ground line, the auxiliary power line, and The high-strength PP rope on the wire set formed by the signal transmission control line, the wrapped tape layer successively wrapped, and the outer sheath pressed against the tape layer.
  • the signal transmission control line of the charging cable is subjected to anti-interference and electromagnetic radiation suppression, thereby reducing capacitive coupling and mutual inductance coupling between the wires; filling the nylon wire with the corresponding insulating layer, Wrap the aluminum-plastic composite tape layer, wrap the braid layer, and coat the outer layer of the braid with conductive adhesive, so that the signal transmission control line forms a fully enclosed shape to prevent external signal interference, and the internal electromagnetic radiation is prevented from leaking out.
  • the utility model effectively solves the technical problem that the electric vehicle quick charging cable in the prior art generates electromagnetic interference in the device in the surrounding space after charging, causing misjudgment and misoperation of the device instruction.
  • FIG. 1 is a schematic cross-sectional view of an electric vehicle quick charging cable for electromagnetic radiation provided by the present invention.
  • the electric vehicle quick charging cable of the present invention shown in FIG. 1 includes: a power supply line for transmitting a power supply charging current, a grounding line for providing grounding protection, an auxiliary power supply line 3 for auxiliary charging at a low voltage, and a signal transmission control line 4 for transmitting a state of charge signal; wherein
  • the power supply line 1, the ground line 2, the auxiliary power line 3, and the signal transmission control line 4 respectively include a copper conductor and an insulating layer covering the outside of the copper conductor.
  • the power supply line 1 is composed of a first copper conductor 11 and a first insulating layer 12 covering the outside of the first copper conductor 11, and the grounding wire 2 is covered by the second copper conductor 21 and wrapped on the outside of the second copper conductor 21.
  • the second insulating layer 22 is formed.
  • the auxiliary power line 3 is composed of a third copper conductor 31 and a third insulating layer 32 covering the outside of the third copper conductor 31.
  • the signal transmission control line 4 includes a fourth copper conductor 41 and a cladding.
  • a fourth insulating layer 42 outside the fourth copper conductor 41 may be the same material, such as oxygen-free copper or single crystal copper; the first, second, third, and fourth insulating layers (1, 2. 22, 32, 42) Can be made of the same material, such as made of thermoplastic TPEE composite.
  • FIG. 1 The left side of FIG. 1 is a schematic cross-sectional view of the charging cable, and the right side is an enlarged cross-sectional view of the signal transmission control line 4 in the charging cable.
  • the signal transmission control line 4 The method further includes: a nylon wire rope 43 that is filled on the corresponding insulating layer (ie, the fourth insulating layer 42), which are successively wound An aluminum-plastic composite tape layer 44, a tinned copper wire braid layer 45 wrapped on the aluminum-plastic composite tape layer 44, a conductive adhesive layer 46 coated on the braid layer 45, and an inner sheath extruded on the conductive adhesive layer 46.
  • Set of 47 a nylon wire rope 43 that is filled on the corresponding insulating layer (ie, the fourth insulating layer 42), which are successively wound An aluminum-plastic composite tape layer 44, a tinned copper wire braid layer 45 wrapped on the aluminum-plastic composite tape layer 44, a conductive adhesive layer 46 coated on the braid layer 45, and an inner sheath extruded on
  • the quick charging cable further includes: a high-strength PP rope 5 filled on a line group formed by the power source line 1, the ground line 2, the auxiliary power line 3, and the signal transmission control line 4, and the package wrapped in succession a layer 6; and an outer sheath 7 pressed against the tape layer 6; wherein the tape layer 6 is made of a nonwoven fabric.
  • the copper conductor (including the first copper conductor 11, the second copper conductor 21, the third copper conductor 31, and the fourth copper conductor 41) used in the fast charging cable is subjected to pulse current annealing.
  • the copper wire bundle is stranded to obtain a copper conductor.
  • the conductor material is subjected to pulse current annealing treatment, and the current capacity per unit cross-sectional area is large, which can meet the requirements of fast charging.
  • each of the signal transmission control lines 4 includes two insulated wires formed by the fourth copper conductor 41 covering the fourth insulating layer 42.
  • the two insulated wires are twisted, and a plurality of (for example, three) nylon wires 43 are filled on both sides of the two insulated wires of the twisted pair, and are wound around the twisted insulated wire filled with the nylon wire 43.
  • An aluminum-plastic composite tape layer 44, a tinned copper wire braided layer 45 is wrapped on the aluminum-plastic composite tape layer 44, a conductive adhesive layer 46 is coated on the braided layer 45, and an inner sheath 47 is extruded on the conductive adhesive layer 46.
  • the signal transmission control line 4 is obtained.
  • the two insulated wires in the signal transmission control line 4 are twisted to reduce the loop area of the disturbed circuit, reduce the capacitive coupling and mutual inductance coupling between the wires, and the braid layer 45 and the aluminum-plastic composite strip layer 44 are double-shielded to suppress signal transmission control.
  • the common mode radiation of the wire, the outer layer of the braid 45 is coated with a conductive adhesive layer 46 to form a fully enclosed configuration. The reason why shielded cables can be used to control common mode emissions is because the common mode current provides a low impedance path that allows common mode current to flow back through the shield back to the common mode voltage source.
  • the signal transmission control line 4 is adjacent to the ground line 2 to form a shortest path to the ground to quickly release the interference electromagnetic waves.
  • the tinned copper wire has a diameter of 0.10 mm, and the tinned copper wire braid has a braid density greater than 85%.
  • the signal transmission control line 4 is designed with a small pitch and a high braiding process parameter, and is coated with a conductive adhesive to prevent external electromagnetic interference and internal electromagnetic leakage, and the signal transmission effect is good.
  • both the inner sheath 47 and the outer sheath 7 are made of 125 ° C radiation crosslinked low-smoke halogen-free flame retardant polyethylene.
  • Polyethylene as a thermoplastic material, which is a non-polar polymer material, not in the molecular structure Containing polar groups, high crystallinity, low surface free energy, strong inertness, stable chemical properties, good electrical properties, graphite powder is added to low-smoke halogen-free flame retardant polyethylene.
  • the ability of the inner sheath 47 and the outer sheath 7 to absorb electromagnetic waves and resist electromagnetic radiation is enhanced.
  • the thickness of the insulating layer (including the first insulating layer 12, the second insulating layer 22, the third insulating layer 32, and the fourth insulating layer 42) in the fast charging cable is 0.5 to 1.8 mm.
  • the inner sheath 47 has a thickness of 0.5 to 0.8 mm, and the outer sheath 7 has a thickness of 2.2 to 2.4 mm. The electrical performance of the cable during fast charging is guaranteed.
  • an embodiment of the present invention further provides a method for preparing an electric vehicle quick charging cable, which includes the following steps:
  • an insulating layer is coated on each of the copper conductors by using an extrusion die to obtain at least two first insulated wires, at least one second insulated wire, at least one third insulated wire, and at least Two fourth insulated wires; wherein the first insulated wire is the power source wire 1, the second insulated wire is the ground wire 2, the third insulated wire is the auxiliary power wire 3, and the fourth insulated wire Used to form a signal transmission control line 4;
  • each of the four insulated wires are twisted, filled with a nylon wire 43, and the aluminum-plastic composite tape layer 44 is sequentially wound, and the aluminum-plastic composite tape layer 44 is wrapped with a tinned copper wire braid.
  • a layer 45, a conductive adhesive layer 46 is coated on the braid layer 45, and the inner sheath 47 is extruded on the conductive adhesive layer 46, and finally the signal transmission control line 4 is obtained;
  • the above method for preparing a quick charging cable is used for preparing the above electric vehicle for rapid charging
  • the cable therefore, is in accordance with one or more embodiments of the charging cable described above and will not be described again.
  • the first type of quick charging cable includes: two power supply lines 1 having a cross-sectional area of 95 mm 2 , a ground line 2 having a cross-sectional area of 35 mm 2 , and two cross-sectional areas.
  • the insulating layer of the power supply line 1 (ie, the first insulating layer 11) has a thickness of 1.8 mm; the insulating layer of the grounding line 2 (ie, the second insulating layer 21) has a thickness of 1.4 mm; and the insulating layer of the auxiliary power supply line 3 ( That is, the third insulating layer 31) has a thickness of 1.0 mm; the insulating layer of the insulated wire of the signal transmission control line 4 (ie, the fourth insulating layer 41) has a thickness of 0.5 mm; the inner sheath 47 has a thickness of 0.6 mm, and the outer sheath 7 The thickness is 2.2 mm.
  • the second quick charging cable includes: two power supply lines 1 having a cross-sectional area of 120 mm 2 , a ground line 2 having a cross-sectional area of 35 mm 2 , and two cross sections
  • An auxiliary power supply line 3 having an area of 6 mm 2 and four insulated lines (i.e., the fourth insulated line) having a cross-sectional area of 1 mm 2 constituting the signal transmission control line 4, each of the four fourth insulated wires are twisted It is filled in an inner sheath 47 (see the above manufacturing method for details of the process, which will not be described here).
  • the insulating layer of the power supply line 1 (ie, the first insulating layer 11) has a thickness of 1.8 mm; the insulating layer of the grounding line 2 (ie, the second insulating layer 21) has a thickness of 1.4 mm; and the insulating layer of the auxiliary power supply line 3 (ie The third insulating layer 31) has a thickness of 1.0 mm; the insulating layer of the insulated wire of the signal transmission control line 4 (ie, the fourth insulating layer 41) has a thickness of 0.5 mm; the inner sheath 47 has a thickness of 0.6 mm, and the outer sheath 7 The thickness is 2.4 mm.
  • the electric vehicle quick charging cable and the preparation method thereof for implementing the electromagnetic radiation resistant of the present invention have the following beneficial effects:
  • the conductor used for the charging cable is oxygen-free copper or single crystal copper with a diameter of less than 0.15 mm. After pulse current annealing treatment, the current carrying capacity per unit cross-sectional area is large, meeting the requirements of fast charging.
  • the structure of the power supply line 1, the grounding line 2, the auxiliary power supply line 3 and the signal transmission control line 4 in the charging cable has strong mechanical properties and electrical insulation performance, and the signal transmission control line 4 is adjacent to the grounding line 2 to form The shortest path to ground, which can quickly release interference electromagnetic waves.
  • the signal transmission control line 4 uses a twisted insulated wire as the core, and the lay length is 8 ⁇ 10cm, which reduces the loop area of the disturbed circuit and reduces the capacitive coupling and mutual inductance coupling between the wires; the signal transmission control line 4 adopts 0.10 mm
  • the tinned copper wire braid 45 has a weaving density of 85% or more, and the aluminum-plastic composite tape layer 44 is double-shielded by the braid layer 45 for good shielding effect; the outer layer of the braid layer 45 is coated with the conductive adhesive layer 46 to form a whole The closed form prevents interference from external signals and suppresses the leakage of internal electromagnetic radiation.
  • the inner sheath 47 and the outer sheath 7 are made of 125 ° C radiation crosslinked low-smoke halogen-free flame-retardant polyethylene.
  • polyethylene is a non-polar polymer material, which does not contain polar groups in the molecular structure, and has high crystallinity, low surface free energy, strong inertia, stable chemical properties, and good electrical properties.
  • graphite powder to the low-smoke flame retardant polyethylene can enhance the ability of the inner sheath 47 and the outer sheath 7 to absorb electromagnetic waves and resist electromagnetic radiation.

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Abstract

A quick charging cable for an electric vehicle and a preparation method therefor resolve the technical problem of interference on charging control caused by generation of electromagnetic radiation during a quick charging process of a conventional charging cable for an electric vehicle. The charging cable comprises a power wire (1), a grounding wire (2), a signal transmission control wire (4), and an auxiliary power wire (3), which respectively comprise copper conductors (11, 21, 41, 31) and insulating layers (12, 22, 42, 32) wrapping the copper conductors (11, 21, 41, 31). The signal transmission control wire (4) is adjacent to the grounding wire (2). The signal transmission control wire (4) further comprises: a nylon rope (43) filled in the corresponding insulating layer (42), a successively-wound aluminum plastic composite belt layer (44), a weaving layer (45) wrapping the aluminum plastic composite belt layer (44), a conductive adhesive layer (46) coating the weaving layer (45), and an inner sheath (47) extruded onto the conductive adhesive layer (46). The charging cable further comprises: a PP rope (5) filled on a wire group consisting of the power wire (1), the grounding wire (2), the auxiliary power wire (3), and the signal transmission control wire (4), a successively-wrapped wrapping belt layer (6), and an outer sheath (7) tightly pressing against the wrapping belt layer (6). Electromagnetic radiation can be resisted during a quick charging process of an electric vehicle.

Description

说明书 发明名称：一种电动汽车快速充电电缆及其制备方法 技术领域  Description: An electric vehicle quick charging cable and a preparation method thereof
[0001] 本发明涉及电力电缆技术领域， 尤其涉及一种抗电磁辐射的电动汽车快速充电 电缆及其制备方法。  [0001] The present invention relates to the field of power cable technologies, and in particular, to an electric vehicle quick charging cable resistant to electromagnetic radiation and a preparation method thereof.
背景技术  Background technique
[0002] 目前， 电动汽车行业的发展， 受车载电池的续航能力的制约。 为了方便用户能 够在需要吋即吋给电动汽车进行充电， 相关电力部门在路边设立了充电桩， 为 了能够满足电动汽车的充电需求， 现有的充电桩需对电动汽车充电较长吋间， 通常为 6~8小吋。 充电吋间长是阻碍电动汽车高速发展的重要因素， 研制快充充 电桩是当务之急， 研制出适应快充系统的充电电缆是实现快速充电系统的一个 重要环节。  [0002] At present, the development of the electric vehicle industry is constrained by the battery life of the vehicle. In order to facilitate the user to charge the electric vehicle when needed, the relevant power department has set up a charging pile on the roadside. In order to meet the charging demand of the electric vehicle, the existing charging pile needs to charge the electric vehicle for a long time. Usually 6~8 hours. Charging time is an important factor hindering the rapid development of electric vehicles. It is imperative to develop fast charging and charging piles. It is an important link to develop a charging cable that adapts to fast charging systems.
技术问题  technical problem
[0003] 电动汽车快速充电电缆关键是承载充电电流， 满足大电流快速充电， 在现有充 电吋间的基础上缩短电动汽车的充电吋间， 提高充电效率。 但是， 充电电缆上 的差模干扰电流和共模干扰电流可以通过电缆直接传导进入电子设备 （如充电 桩） 的电路模块或其他设备， 也可以在空间产生电磁场形成辐射干扰， 引起设 备指令的误判、 误操作。 例如， 电动汽车已充电完成， 但由于受到电磁辐射干 扰， 充电桩仍显示其未充满， 导致电动汽车过充电。  [0003] The key to the electric vehicle fast charging cable is to carry the charging current, to meet the high current fast charging, shorten the charging time of the electric vehicle on the basis of the existing charging, and improve the charging efficiency. However, the differential mode interference current and the common mode interference current on the charging cable can be directly transmitted to the circuit module or other equipment of the electronic device (such as a charging pile) through the cable, or the electromagnetic field can generate electromagnetic interference in the space, causing the error of the device instruction. Judgment, misuse. For example, the electric car has been fully charged, but due to electromagnetic interference, the charging pile still shows that it is not full, causing the electric car to overcharge.
问题的解决方案  Problem solution
技术解决方案  Technical solution
[0004] 针对现有技术中存在的电动汽车快速充电电缆在充电吋对周围空间环境中的设 备产生电磁干扰， 引起设备指令误判、 误操作的技术问题， 提供了一种电动汽 车快速充电电缆及其制备方法， 实现了在对电动汽车快速充电吋吸收电磁波， 抗电磁辐射的技术效果。  [0004] In view of the technical problem that the electric vehicle quick charging cable existing in the prior art generates electromagnetic interference in the device in the surrounding space after charging, causing misjudgment and misoperation of the device instruction, an electric vehicle quick charging cable is provided. The preparation method thereof realizes the technical effect of absorbing electromagnetic waves and resisting electromagnetic radiation in the rapid charging of the electric vehicle.
[0005] 一方面， 本发明提供了一种电动汽车快速充电电缆， 包括： 用于传输动力电源 充电电流的动力电源线、 用于提供接地保护的接地线、 用于在低压下辅助充电 的辅助电源线和用于传输充电状态信号的信号传输控制线； [0005] In one aspect, the present invention provides an electric vehicle quick charging cable, comprising: a power power line for transmitting a power source charging current, a grounding wire for providing grounding protection, and an auxiliary charging at a low voltage; Auxiliary power line and signal transmission control line for transmitting a state of charge signal;
[0006] 所述动力电源线、 所述接地线、 所述辅助电源线和所述信号传输控制线分别包 括铜导体和包覆于铜导体外侧的绝缘层； 其中， 所述信号传输控制线与所述接 地线相邻， 形成接地的最短路径；  [0006] the power supply line, the ground line, the auxiliary power line, and the signal transmission control line respectively include a copper conductor and an insulating layer covering the outside of the copper conductor; wherein the signal transmission control line and The ground lines are adjacent to each other to form a shortest path of the ground;
[0007] 所述信号传输控制线还包括： 填充于对应绝缘层上的尼龙丝绳， 相继缠绕的铝 塑复合带层， 包裹于所述铝塑复合带层上的镀锡铜丝编织层， 涂覆于所述编织 层上的导电胶层， 以及挤包于所述导电胶层上的内护套； [0007] The signal transmission control line further includes: a nylon wire rope filled on the corresponding insulating layer, a sequentially wound aluminum-plastic composite tape layer, and a tinned copper wire braid layer wrapped on the aluminum-plastic composite tape layer, a conductive adhesive layer coated on the woven layer, and an inner sheath extruded on the conductive adhesive layer;
[0008] 所述快速充电电缆还包括： 填充于所述动力电源线、 所述接地线、 所述辅助电 源线和所述信号传输控制线构成的线组上的高强度 PP绳， 相继绕包的包带层， 以及紧压于所述包带层上的外护套。 [0008] The fast charging cable further includes: a high-strength PP rope filled on a line group formed by the power power line, the ground line, the auxiliary power line, and the signal transmission control line, and sequentially wrapped a tape layer and an outer jacket that is pressed against the tape layer.
[0009] 可选的， 所述快速充电电缆所采用的铜导体为经过脉冲电流退火处理的无氧铜 或者单晶铜， 所述无氧铜或者单晶铜的单丝直径小于 0.15mm。  [0009] Optionally, the copper conductor used in the fast charging cable is oxygen-free copper or single crystal copper subjected to pulse current annealing, and the monofilament diameter of the oxygen-free copper or single crystal copper is less than 0.15 mm.
[0010] 可选的， 所述信号传输控制线包括两根由铜导体外包绝缘层构成的绝缘线， 两 根所述绝缘线对绞， 绞距为 8~10cm。  [0010] Optionally, the signal transmission control line includes two insulated wires formed by an outer insulating layer of a copper conductor, and the two insulated wires are twisted, and the lay length is 8 to 10 cm.
[0011] 可选的， 所述镀锡铜丝的直径为 0.10mm， 所述镀锡铜丝编织层的编织密度大 于 85<¾。  [0011] Optionally, the tinned copper wire has a diameter of 0.10 mm, and the tinned copper wire braid has a weaving density greater than 85<3⁄4.
[0012] 可选的， 所述快速充电电缆中绝缘层的厚度为 0.5~1.8mm， 所述内护套的厚度 为 0.5~0.8mm， 所述外护套的厚度为 2.2~2.4mm。  [0012] Optionally, the thickness of the insulating layer in the fast charging cable is 0.5-1.8 mm, the thickness of the inner sheath is 0.5-0.8 mm, and the thickness of the outer sheath is 2.2-2.4 mm.
[0013] 可选的， 所述快速充电电缆中绝缘层由热塑性 TPEE复合材料制成。  [0013] Optionally, the insulating layer in the fast charging cable is made of a thermoplastic TPEE composite material.
[0014] 可选的， 所述内护套和所述外护套均由 125°C辐照交联低烟无卤阻燃聚乙烯制 得， 所述内护套和所述外护套中添加有石墨粉。  [0014] Optionally, the inner sheath and the outer sheath are both made of 125 ° C radiation cross-linked low-smoke halogen-free flame retardant polyethylene, the inner sheath and the outer sheath Added graphite powder.
[0015] 另一方面， 本发明还提供了一种电动车快速充电电缆的制备方法， 包括以下步 骤： [0015] In another aspect, the present invention also provides a method for preparing an electric vehicle quick charging cable, comprising the following steps:
[0016] Sl、 通过将铜导体材料拉丝、 脉冲电流退火、 绞合处理后， 获得多根铜导体； [0017] S2、 采用挤压式模具在每根所述铜导体外包覆绝缘层， 以得到至少两根第一绝 缘线、 至少一根第二绝缘线、 至少一根第三绝缘线和至少两根第四绝缘线； 其 中， 所述第一绝缘线为动力电源线， 所述第二绝缘线为接地线， 所述第三绝缘 线为辅助电源线， 所述第四绝缘线用于构成信号传输控制线； [0018] S3、 将每两根所述第四绝缘线对绞， 加尼龙丝绳填充， 相继缠绕铝塑复合带层 ， 在所述铝塑复合带层上包裹镀锡铜丝编织层， 在所述编织层上涂覆导电胶层 ， 以及在所述导电胶层上挤包内护套， 最终得到所述信号传输控制线； [0016] Sl, by drawing copper conductor material, pulse current annealing, stranding treatment, obtaining a plurality of copper conductors; [0017] S2, using an extrusion die to cover the outer layer of each of the copper conductors, Obtaining at least two first insulated wires, at least one second insulated wire, at least one third insulated wire, and at least two fourth insulated wires; wherein the first insulated wire is a power source wire, the The second insulated wire is a grounding wire, the third insulated wire is an auxiliary power wire, and the fourth insulated wire is used to form a signal transmission control line; [0018] S3, each of the four insulated wires are twisted, filled with a nylon wire, and sequentially wound with an aluminum-plastic composite tape layer, and a tinned copper wire braid is wrapped on the aluminum-plastic composite tape layer. Coating a conductive adhesive layer on the woven layer, and extruding an inner sheath on the conductive adhesive layer to finally obtain the signal transmission control line;
[0019] S4、 将所述动力电源线、 所述接地线、 所述辅助电源线和所述信号传输控制线 构成线组， 并在所述线组上填充高强度 PP绳， 相继绕包无纺布以形成包带层； [0019] S4, forming the power power line, the ground line, the auxiliary power line, and the signal transmission control line into a line group, and filling the line group with a high-strength PP rope, and sequentially wrapping the package Woven to form a tape layer;
[0020] S5、 在所述包带层上紧压外护套。 [0020] S5, pressing the outer sheath on the tape layer.
发明的有益效果  Advantageous effects of the invention
有益效果  Beneficial effect
[0021] 本发明中提供的一个或多个技术方案， 至少具有如下技术效果或优点：  [0021] One or more technical solutions provided in the present invention have at least the following technical effects or advantages:
[0022] 由于在本发明方案中， 电动汽车快速充电电缆包括： 用于传输动力电源充电电 流的动力电源线、 用于提供接地保护的接地线、 用于在低压下辅助充电的辅助 电源线和用于传输充电状态信号的信号传输控制线； 其中， 所述动力电源线、 所述接地线、 所述辅助电源线和所述信号传输控制线分别包括铜导体和包覆于 铜导体外侧的绝缘层； 所述信号传输控制线还包括： 填充于对应绝缘层上的尼 龙丝绳， 相继缠绕的铝塑复合带层， 包裹于所述铝塑复合带层上的镀锡铜丝编 织层， 涂覆于所述编织层上的导电胶层， 以及挤包于所述导电胶层上的内护套 ； 所述快速充电电缆还包括： 填充于所述动力电源线、 所述接地线、 所述信号 传输控制线和所述辅助电源线构成的线组上的高强度 PP绳， 相继绕包的包带层 ， 以及紧压于所述包带层上的外护套。 首先， 导体选用单丝直径小于 0.15mm的 无氧铜或者单晶铜， 经过脉冲电流退火处理， 单位截面积载流能力大， 满足快 速充电的要求。 其次， 在结构上， 信号传输控制线与所述接地线相邻， 形成接 地的最短路径， 以快速释放干扰电磁波。 再次， 信号传输控制线包括两根由铜 导体外包绝缘层构成的绝缘线， 且两根所述绝缘线对绞， 绞距 8~10cm， 对该充 电电缆的信号传输控制线进行抗干扰和抑制电磁辐射处理， 减少电线间的电容 耦合和互感耦合； 在对应绝缘层填充尼龙丝绳， 缠绕铝塑复合带层， 外包裹编 织层， 并在编织层外层涂覆导电胶， 使信号传输控制线形成全封闭的形态， 防 止外部信号的干扰， 同吋抑制了内部电磁辐射向外泄露； 最后， 内护套和外护 套采用 125°C辐照交联低烟无卤阻燃聚乙烯材料， 为非极性分子， 结晶度高， 化 学性能稳定， 有良好的电性能， 在热塑性材料中添加石墨粉， 为低介电材料， 吸收电磁波， 增强该充电电缆的抗电磁辐射效果。 有效的解决了现有技术中电 动汽车快速充电电缆在充电吋对周围空间环境中的设备产生电磁干扰， 引起设 备指令误判、 误操作的技术问题。 [0022] In the solution of the present invention, the electric vehicle quick charging cable includes: a power supply line for transmitting a power source charging current, a ground line for providing grounding protection, an auxiliary power line for auxiliary charging at a low voltage, and a signal transmission control line for transmitting a charging state signal; wherein the power power line, the ground line, the auxiliary power line, and the signal transmission control line respectively comprise a copper conductor and an insulation covering the outside of the copper conductor The signal transmission control line further includes: a nylon wire rope filled on the corresponding insulating layer, a sequentially wound aluminum-plastic composite tape layer, a tinned copper wire braid wrapped on the aluminum-plastic composite tape layer, coated a conductive adhesive layer overlying the woven layer, and an inner sheath extruded on the conductive adhesive layer; the quick charging cable further comprising: filling the power supply line, the ground line, the A high-strength PP rope on the wire set formed by the signal transmission control line and the auxiliary power supply line, a wrap layer that is successively wrapped, and an outer sheath that is pressed against the tape layer. Firstly, the conductor is made of oxygen-free copper or single crystal copper with a diameter of less than 0.15 mm. After pulse current annealing, the current carrying capacity per unit cross-sectional area is large, meeting the requirements of fast charging. Secondly, structurally, the signal transmission control line is adjacent to the ground line to form a shortest path to the ground to quickly release the interfering electromagnetic waves. Again, the signal transmission control line includes two insulated wires composed of an outer insulating layer of a copper conductor, and the two insulated wires are twisted and twisted by 8 to 10 cm, and the signal transmission control line of the charging cable is subjected to anti-interference and electromagnetic suppression. Radiation treatment, reducing the capacitive coupling and mutual inductance coupling between the wires; filling the nylon wire rope in the corresponding insulation layer, winding the aluminum-plastic composite tape layer, wrapping the braid layer, and coating the outer layer of the braid layer with conductive adhesive to make the signal transmission control line Forming a fully enclosed shape to prevent interference from external signals, and suppressing the leakage of internal electromagnetic radiation; Finally, the inner sheath and the outer sheath are crosslinked with a low-smoke, halogen-free flame-retardant polyethylene material at 125 ° C. Non-polar molecules, high crystallinity Stable performance, good electrical performance, adding graphite powder to thermoplastic materials, low dielectric materials, absorbing electromagnetic waves, enhancing the anti-electromagnetic radiation effect of the charging cable. The utility model effectively solves the technical problem that the electric vehicle quick charging cable in the prior art generates electromagnetic interference in the device in the surrounding space after charging, causing misjudgment and misoperation of the device instruction.
对附图的简要说明  Brief description of the drawing
附图说明  DRAWINGS
[0023] 为了更清楚地说明本发明实施例或现有技术中的技术方案， 下面将对实施例或 现有技术描述中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的 附图仅仅是本发明的实施例， 对于本领域普通技术人员来讲， 在不付出创造性 劳动的前提下， 还可以根据提供的附图获得其他的附图。  [0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings to be used in the embodiments or the prior art description will be briefly described below, and obviously, in the following description The drawings are merely examples of the invention, and those skilled in the art can also obtain other drawings based on the drawings provided without any inventive work.
[0024] 图 1为本发明实施例提供的一种电动汽车快速充电电缆截面示意图； 1 is a schematic cross-sectional view of a rapid charging cable for an electric vehicle according to an embodiment of the present invention;
[0025] 图 2为本发明实施例提供的一种电动车快速充电电缆的制备方法的流程图。 2 is a flow chart of a method for preparing an electric vehicle quick charging cable according to an embodiment of the present invention.
实施该发明的最佳实施例  BEST MODE FOR CARRYING OUT THE INVENTION
本发明的最佳实施方式  BEST MODE FOR CARRYING OUT THE INVENTION
[0026] 本发明实施例通过提供一种电动汽车快速充电电缆， 解决了现有技术中存在的 电动汽车快速充电电缆在充电吋对周围空间环境中的设备产生电磁干扰， 引起 设备指令误判、 误操作的技术问题， 实现了在对电动汽车快速充电吋吸收电磁 波， 抗电磁辐射的技术效果。  [0026] Embodiments of the present invention provide an electric vehicle quick charging cable, which solves the problem that the electric vehicle quick charging cable existing in the prior art generates electromagnetic interference in a device in a surrounding space environment after charging, causing a misjudgment of the device instruction. The technical problem of misoperation has realized the technical effect of quickly charging the electric vehicle, absorbing electromagnetic waves, and resisting electromagnetic radiation.
[0027] 本发明实施例的技术方案为解决上述技术问题， 总体思路如下： [0027] The technical solution of the embodiment of the present invention is to solve the above technical problem, and the general idea is as follows:
[0028] 本发明实施例提供了一种电动汽车快速充电电缆， 包括： 用于传输动力电源充 电电流的动力电源线、 用于提供接地保护的接地线、 用于在低压下辅助充电的 辅助电源线和用于传输充电状态信号的信号传输控制线； 所述动力电源线、 所 述接地线、 所述辅助电源线和所述信号传输控制线分别包括铜导体和包覆于铜 导体外侧的绝缘层； 其中， 所述信号传输控制线与所述接地线相邻， 形成接地 的最短路径； 所述信号传输控制线还包括： 填充于对应绝缘层上的尼龙丝绳， 相继缠绕的铝塑复合带层， 包裹于所述铝塑复合带层上的镀锡铜丝编织层， 涂 覆于所述编织层上的导电胶层， 以及挤包于所述导电胶层上的内护套； 所述快 速充电电缆还包括： 填充于所述动力电源线、 所述接地线、 所述辅助电源线和 所述信号传输控制线构成的线组上的高强度 PP绳， 相继绕包的包带层， 以及紧 压于所述包带层上的外护套。 [0028] Embodiments of the present invention provide an electric vehicle quick charging cable, including: a power power line for transmitting a power source charging current, a grounding wire for providing grounding protection, and an auxiliary power source for auxiliary charging at a low voltage. a line and a signal transmission control line for transmitting a state of charge signal; the power source line, the ground line, the auxiliary power line, and the signal transmission control line respectively comprise a copper conductor and an insulation covering the outside of the copper conductor The signal transmission control line is adjacent to the ground line to form a shortest path of the ground; the signal transmission control line further includes: a nylon wire rope filled on the corresponding insulating layer, and successively wound aluminum-plastic composite a belt layer, a tinned copper wire braid wrapped on the aluminum-plastic composite tape layer, a conductive adhesive layer coated on the braid layer, and an inner sheath extruded on the conductive adhesive layer; The quick charging cable further includes: filling the power power line, the ground line, the auxiliary power line, and The high-strength PP rope on the wire set formed by the signal transmission control line, the wrapped tape layer successively wrapped, and the outer sheath pressed against the tape layer.
[0029] 可见， 在本发明实施例中， 通过对该充电电缆的信号传输控制线进行抗干扰和 抑制电磁辐射处理， 减少电线间的电容耦合和互感耦合； 在对应绝缘层填充尼 龙丝绳， 缠绕铝塑复合带层， 外包裹编织层， 并在编织层外层涂覆导电胶， 使 信号传输控制线形成全封闭的形态， 防止外部信号的干扰， 同吋抑制了内部电 磁辐射向外泄露。 有效的解决了现有技术中电动汽车快速充电电缆在充电吋对 周围空间环境中的设备产生电磁干扰， 引起设备指令误判、 误操作的技术问题  [0029] It can be seen that, in the embodiment of the present invention, the signal transmission control line of the charging cable is subjected to anti-interference and electromagnetic radiation suppression, thereby reducing capacitive coupling and mutual inductance coupling between the wires; filling the nylon wire with the corresponding insulating layer, Wrap the aluminum-plastic composite tape layer, wrap the braid layer, and coat the outer layer of the braid with conductive adhesive, so that the signal transmission control line forms a fully enclosed shape to prevent external signal interference, and the internal electromagnetic radiation is prevented from leaking out. . The utility model effectively solves the technical problem that the electric vehicle quick charging cable in the prior art generates electromagnetic interference in the device in the surrounding space after charging, causing misjudgment and misoperation of the device instruction.
[0030] 为了更好的理解上述技术方案， 下面将结合说明书附图以及具体的实施方式对 上述技术方案进行详细的说明， 应当理解本发明实施例以及实施例中的具体特 征是对本申请技术方案的详细的说明， 而不是对本申请技术方案的限定， 在不 冲突的情况下， 本发明实施例以及实施例中的技术特征可以相互组合。 [0030] In order to better understand the above technical solutions, the above technical solutions will be described in detail in conjunction with the drawings and specific embodiments. It should be understood that the specific features of the embodiments and embodiments of the present invention are the technical solutions of the present application. The detailed description, rather than the limitation of the technical solution of the present application, can be combined with each other in the embodiments of the present invention and the technical features in the embodiments without conflict.
[0031] 如图 1所示， 为本发明提供的一种抗电磁辐射的电动汽车快速充电电缆的截面 示意图。 图 1所示本发明电动汽车快速充电电缆， 包括： 用于传输动力电源充电 电流的动力电源线 1、 用于提供接地保护的接地线 2、 用于在低压下辅助充电的 辅助电源线 3和用于传输充电状态信号的信号传输控制线 4; 其中，  [0031] FIG. 1 is a schematic cross-sectional view of an electric vehicle quick charging cable for electromagnetic radiation provided by the present invention. The electric vehicle quick charging cable of the present invention shown in FIG. 1 includes: a power supply line for transmitting a power supply charging current, a grounding line for providing grounding protection, an auxiliary power supply line 3 for auxiliary charging at a low voltage, and a signal transmission control line 4 for transmitting a state of charge signal; wherein
[0032] 动力电源线 1、 接地线 2、 辅助电源线 3和信号传输控制线 4分别包括铜导体和包 覆于铜导体外侧的绝缘层。 具体的， 动力电源线 1由第一铜导体 11和包覆于第一 铜导体 11外侧的第一绝缘层 12构成， 接地线 2由第二铜导体 21和包覆于第二铜导 体 21外侧的第二绝缘层 22构成， 辅助电源线 3由第三铜导体 31和包覆于第三铜导 体 31外侧的第三绝缘层 32构成， 信号传输控制线 4包括第四铜导体 41和包覆于第 四铜导体 41外侧的第四绝缘层 42。 具体的， 第一、 二、 三、 四铜导体 （11、 21 、 31、 41) 可为相同材质， 如无氧铜或者单晶铜； 第一、 二、 三、 四绝缘层 （1 2、 22、 32、 42) 可由相同材质制成， 如由热塑性 TPEE复合材料制成。  [0032] The power supply line 1, the ground line 2, the auxiliary power line 3, and the signal transmission control line 4 respectively include a copper conductor and an insulating layer covering the outside of the copper conductor. Specifically, the power supply line 1 is composed of a first copper conductor 11 and a first insulating layer 12 covering the outside of the first copper conductor 11, and the grounding wire 2 is covered by the second copper conductor 21 and wrapped on the outside of the second copper conductor 21. The second insulating layer 22 is formed. The auxiliary power line 3 is composed of a third copper conductor 31 and a third insulating layer 32 covering the outside of the third copper conductor 31. The signal transmission control line 4 includes a fourth copper conductor 41 and a cladding. A fourth insulating layer 42 outside the fourth copper conductor 41. Specifically, the first, second, third, and fourth copper conductors (11, 21, 31, 41) may be the same material, such as oxygen-free copper or single crystal copper; the first, second, third, and fourth insulating layers (1, 2. 22, 32, 42) Can be made of the same material, such as made of thermoplastic TPEE composite.
[0033] 图 1左边为充电电缆的整体截面示意图、 右边为充电电缆中信号传输控制线 4的 截面放大图， 如图 1右边信号传输控制线 4的截面放大图所示， 信号传输控制线 4 还包括： 填充于对应绝缘层 （即第四绝缘层 42) 上的尼龙丝绳 43， 相继缠绕的 铝塑复合带层 44， 包裹于铝塑复合带层 44上的镀锡铜丝编织层 45， 涂覆于编织 层 45上的导电胶层 46， 以及挤包于导电胶层 46上的内护套 47； [0033] The left side of FIG. 1 is a schematic cross-sectional view of the charging cable, and the right side is an enlarged cross-sectional view of the signal transmission control line 4 in the charging cable. As shown in the enlarged cross-sectional view of the signal transmission control line 4 on the right side of FIG. 1, the signal transmission control line 4 The method further includes: a nylon wire rope 43 that is filled on the corresponding insulating layer (ie, the fourth insulating layer 42), which are successively wound An aluminum-plastic composite tape layer 44, a tinned copper wire braid layer 45 wrapped on the aluminum-plastic composite tape layer 44, a conductive adhesive layer 46 coated on the braid layer 45, and an inner sheath extruded on the conductive adhesive layer 46. Set of 47;
[0034] 所述快速充电电缆还包括： 填充于动力电源线 1、 接地线 2、 辅助电源线 3和信 号传输控制线 4构成的线组上的高强度 PP绳 5， 相继绕包的包带层 6; 以及紧压于 包带层 6上的外护套 7 ; 其中， 包带层 6采用无纺布。  [0034] The quick charging cable further includes: a high-strength PP rope 5 filled on a line group formed by the power source line 1, the ground line 2, the auxiliary power line 3, and the signal transmission control line 4, and the package wrapped in succession a layer 6; and an outer sheath 7 pressed against the tape layer 6; wherein the tape layer 6 is made of a nonwoven fabric.
[0035] 在具体实施过程中， 所述快速充电电缆所采用的铜导体 （包括第一铜导体 11、 第二铜导体 21、 第三铜导体 31、 第四铜导体 41) 为经过脉冲电流退火处理的无 氧铜或者单晶铜， 所述无氧铜或者单晶铜的单丝直径小于 0.15mm。 其中， 铜丝 束绞绞合后得到铜导体。 导体材料经过脉冲电流退火处理， 单位截面积载流能 力大， 能够满足快速充电的要求。  [0035] In a specific implementation process, the copper conductor (including the first copper conductor 11, the second copper conductor 21, the third copper conductor 31, and the fourth copper conductor 41) used in the fast charging cable is subjected to pulse current annealing. Treated oxygen-free copper or single crystal copper, the monofilament of the oxygen-free copper or single crystal copper having a diameter of less than 0.15 mm. Among them, the copper wire bundle is stranded to obtain a copper conductor. The conductor material is subjected to pulse current annealing treatment, and the current capacity per unit cross-sectional area is large, which can meet the requirements of fast charging.
[0036] 在具体实施过程中， 每根信号传输控制线 4包括两根由第四铜导体 41包覆第四 绝缘层 42构成的绝缘线。 这两根绝缘线对绞， 在对绞的两个绝缘线的两侧各加 多根 （如 3根） 尼龙丝绳 43进行填充， 并在填充有尼龙丝绳 43的对绞绝缘线外缠 绕铝塑复合带层 44， 在铝塑复合带层 44上包裹镀锡铜丝编织层 45， 在编织层 45 上涂覆导电胶层 46， 以及在导电胶层 46上挤包内护套 47， 最终得到信号传输控 制线 4。 信号传输控制线 4中两根绝缘线对绞， 减小受扰电路的回路面积， 减少 电线间的电容耦合和互感耦合， 编织层 45与铝塑复合带层 44双层屏蔽， 抑制信 号传输控制线的共模辐射， 编织层 45外层涂覆导电胶层 46， 形成全封闭的形态 。 这里之所以能够屏蔽电缆控制共模辐射是因为共模电流提供了一个低阻抗通 路， 使共模电流通过屏蔽层流回共模电压源。  [0036] In a specific implementation process, each of the signal transmission control lines 4 includes two insulated wires formed by the fourth copper conductor 41 covering the fourth insulating layer 42. The two insulated wires are twisted, and a plurality of (for example, three) nylon wires 43 are filled on both sides of the two insulated wires of the twisted pair, and are wound around the twisted insulated wire filled with the nylon wire 43. An aluminum-plastic composite tape layer 44, a tinned copper wire braided layer 45 is wrapped on the aluminum-plastic composite tape layer 44, a conductive adhesive layer 46 is coated on the braided layer 45, and an inner sheath 47 is extruded on the conductive adhesive layer 46. Finally, the signal transmission control line 4 is obtained. The two insulated wires in the signal transmission control line 4 are twisted to reduce the loop area of the disturbed circuit, reduce the capacitive coupling and mutual inductance coupling between the wires, and the braid layer 45 and the aluminum-plastic composite strip layer 44 are double-shielded to suppress signal transmission control. The common mode radiation of the wire, the outer layer of the braid 45 is coated with a conductive adhesive layer 46 to form a fully enclosed configuration. The reason why shielded cables can be used to control common mode emissions is because the common mode current provides a low impedance path that allows common mode current to flow back through the shield back to the common mode voltage source.
[0037] 另外， 信号传输控制线 4与接地线 2相邻， 形成接地的最短路径， 以快速释放干 扰电磁波。  In addition, the signal transmission control line 4 is adjacent to the ground line 2 to form a shortest path to the ground to quickly release the interference electromagnetic waves.
[0038] 在具体实施过程中， 所述镀锡铜丝的直径为 0.10mm， 所述镀锡铜丝编织层的 编织密度大于 85%。 为保证充电状态信号的稳定安全可靠性， 信号传输控制线 4 选用节距小， 编织密度大的工艺参数设计， 涂覆导电胶， 防止外部电磁干扰和 内部电磁泄露， 信号传输效果好。  [0038] In a specific implementation process, the tinned copper wire has a diameter of 0.10 mm, and the tinned copper wire braid has a braid density greater than 85%. In order to ensure the stable safety and reliability of the charging state signal, the signal transmission control line 4 is designed with a small pitch and a high braiding process parameter, and is coated with a conductive adhesive to prevent external electromagnetic interference and internal electromagnetic leakage, and the signal transmission effect is good.
[0039] 在具体实施过程中， 内护套 47和外护套 7均由 125°C辐照交联低烟无卤阻燃聚乙 烯制得。 聚乙烯作为一种热塑性材料， 其为非极性高分子材料， 分子结构中不 含极性基团， 且结晶度高， 表面自由能低， 惰性较强， 化学性能稳定， 有良好 的电性能， 在低烟无卤阻燃聚乙烯中添加石墨粉这种吸波材料， 可增强内护套 4 7和外护套 7吸收电磁波、 抗电磁辐射的能力。 [0039] In a specific implementation process, both the inner sheath 47 and the outer sheath 7 are made of 125 ° C radiation crosslinked low-smoke halogen-free flame retardant polyethylene. Polyethylene as a thermoplastic material, which is a non-polar polymer material, not in the molecular structure Containing polar groups, high crystallinity, low surface free energy, strong inertness, stable chemical properties, good electrical properties, graphite powder is added to low-smoke halogen-free flame retardant polyethylene. The ability of the inner sheath 47 and the outer sheath 7 to absorb electromagnetic waves and resist electromagnetic radiation is enhanced.
[0040] 在具体实施过程中， 所述快速充电电缆中绝缘层 （包括第一绝缘层 12、 第二绝 缘层 22、 第三绝缘层 32、 第四绝缘层 42) 的厚度为 0.5~1.8mm， 内护套 47的厚度 为 0.5~0.8mm， 外护套 7的厚度为 2.2~2.4mm。 保证了电缆在快速充电过程中的电 气性能。 [0040] In a specific implementation process, the thickness of the insulating layer (including the first insulating layer 12, the second insulating layer 22, the third insulating layer 32, and the fourth insulating layer 42) in the fast charging cable is 0.5 to 1.8 mm. The inner sheath 47 has a thickness of 0.5 to 0.8 mm, and the outer sheath 7 has a thickness of 2.2 to 2.4 mm. The electrical performance of the cable during fast charging is guaranteed.
[0041] 基于同一发明构思， 请参考图 2， 本发明实施例还提供了一种电动车快速充电 电缆的制备方法， 包括以下步骤：  [0041] Based on the same inventive concept, referring to FIG. 2, an embodiment of the present invention further provides a method for preparing an electric vehicle quick charging cable, which includes the following steps:
[0042] Sl、 通过将铜导体材料拉丝、 脉冲电流退火、 绞合处理后， 获得多根铜导体； 其中， 铜导体材料为经过脉冲电流退火处理的无氧铜或者单晶铜， 所述无氧铜 或者单晶铜的单丝直径小于 0.15mm。 其中， 铜丝束绞绞合后得到铜导体。 导体 材料经过脉冲电流退火处理， 单位截面积载流能力大， 能够满足快速充电的要 求。  [0042] Sl, by drawing copper conductor material, pulse current annealing, stranding treatment, obtaining a plurality of copper conductors; wherein, the copper conductor material is pulsed current annealing oxygen-free copper or single crystal copper, the The diameter of the monofilament of copper oxide or single crystal copper is less than 0.15 mm. Wherein, the copper wire bundle is stranded to obtain a copper conductor. The conductor material is subjected to pulse current annealing treatment, and has a large current carrying capacity per unit cross-sectional area, which can meet the requirements of fast charging.
[0043] S2、 采用挤压式模具在每根所述铜导体外包覆绝缘层， 以得到至少两根第一绝 缘线、 至少一根第二绝缘线、 至少一根第三绝缘线和至少两根第四绝缘线； 其 中， 所述第一绝缘线为动力电源线 1， 所述第二绝缘线为接地线 2， 所述第三绝 缘线为辅助电源线 3， 所述第四绝缘线用于构成信号传输控制线 4;  [0043] S2, an insulating layer is coated on each of the copper conductors by using an extrusion die to obtain at least two first insulated wires, at least one second insulated wire, at least one third insulated wire, and at least Two fourth insulated wires; wherein the first insulated wire is the power source wire 1, the second insulated wire is the ground wire 2, the third insulated wire is the auxiliary power wire 3, and the fourth insulated wire Used to form a signal transmission control line 4;
[0044] S3、 将每两根所述第四绝缘线对绞， 加尼龙丝绳 43填充， 相继缠绕铝塑复合带 层 44， 在所述铝塑复合带层 44上包裹镀锡铜丝编织层 45， 在所述编织层 45上涂 覆导电胶层 46， 以及在所述导电胶层 46上挤包内护套 47， 最终得到所述信号传 输控制线 4;  [0044] S3, each of the four insulated wires are twisted, filled with a nylon wire 43, and the aluminum-plastic composite tape layer 44 is sequentially wound, and the aluminum-plastic composite tape layer 44 is wrapped with a tinned copper wire braid. a layer 45, a conductive adhesive layer 46 is coated on the braid layer 45, and the inner sheath 47 is extruded on the conductive adhesive layer 46, and finally the signal transmission control line 4 is obtained;
[0045] S4、 将所述动力电源线 1、 所述接地线 2、 所述辅助电源线 3和所述信号传输控 制线 4构成线组， 并在所述线组上填充高强度 PP绳 5， 相继绕包无纺布以形成包 带层 6;  [0045] S4, forming the power power line 1, the ground line 2, the auxiliary power line 3, and the signal transmission control line 4 into a line group, and filling the line group with a high-strength PP rope 5 , wrapping the nonwoven fabric successively to form the tape layer 6;
[0046] S5、 在包带层 6上紧压外护套 7; 其中， 外护套 7由 125°C辐照交联低烟无卤阻燃 聚乙烯制得。  [0046] S5, pressing the outer sheath 7 on the tape layer 6; wherein the outer sheath 7 is obtained by irradiating 125 ° C radiation cross-linked low-smoke halogen-free flame retardant polyethylene.
[0047] 根据上面的描述， 上述快速充电电缆制备方法用于制备上述电动汽车快速充电 电缆， 所以， 该方法与上述充电电缆的一个或多个实施例一致， 在此就不再一 一赘述了。 [0047] According to the above description, the above method for preparing a quick charging cable is used for preparing the above electric vehicle for rapid charging The cable, therefore, is in accordance with one or more embodiments of the charging cable described above and will not be described again.
下面给出两种电动汽车快速充电电缆的具体结构说明：  The following is a detailed description of the structure of two types of electric vehicle quick charging cables:
[0049] 1) 请结合图 1， 第一种快速充电电缆包括： 两根横截面积为 95mm 2的动力电源 线 1， 一根横截面积为 35mm 2的接地线 2， 两根横截面积为 6mm 2的辅助电源线 3 ， 以及四根用于构成信号传输控制线 4的横截面积为 0.75mm 2的绝缘线 （即所述 第四绝缘线） ， 每两根第四绝缘线对绞加填充在一个内护套 47内 （具体工艺细 节见上述快速充电电缆制备方法， 这里不一一赘述） 。 其中： [0049] 1) Referring to FIG. 1, the first type of quick charging cable includes: two power supply lines 1 having a cross-sectional area of 95 mm 2 , a ground line 2 having a cross-sectional area of 35 mm 2 , and two cross-sectional areas. An auxiliary power supply line 3 of 6 mm 2 and four insulated wires (that is, the fourth insulated wire) having a cross-sectional area of 0.75 mm 2 for constituting the signal transmission control line 4, each of the four fourth insulated wires are twisted It is filled in an inner sheath 47 (for details of the process, see the above-mentioned quick charging cable preparation method, which will not be described here). among them:
[0050] 动力电源线 1的绝缘层 （即第一绝缘层 11) 厚度为 1.8mm; 接地线 2的绝缘层 （ 即第二绝缘层 21) 厚度为 1.4mm; 辅助电源线 3的绝缘层 （即第三绝缘层 31) 厚 度为 1.0mm; 信号传输控制线 4的绝缘线的绝缘层 （即第四绝缘层 41) 厚度为 0.5 mm; 内护套 47的厚度为 0.6mm， 外护套 7的厚度为 2.2mm。  [0050] The insulating layer of the power supply line 1 (ie, the first insulating layer 11) has a thickness of 1.8 mm; the insulating layer of the grounding line 2 (ie, the second insulating layer 21) has a thickness of 1.4 mm; and the insulating layer of the auxiliary power supply line 3 ( That is, the third insulating layer 31) has a thickness of 1.0 mm; the insulating layer of the insulated wire of the signal transmission control line 4 (ie, the fourth insulating layer 41) has a thickness of 0.5 mm; the inner sheath 47 has a thickness of 0.6 mm, and the outer sheath 7 The thickness is 2.2 mm.
[0051] 2) 仍请结合图 1， 第二种快速充电电缆包括： 两根横截面积为 120mm 2的动力 电源线 1， 一根横截面积为 35mm 2的接地线 2， 两根横截面积为 6mm 2的辅助电源 线 3， 以及四根用于构成信号传输控制线 4的横截面积为 lmm 2的绝缘线 （即所述 第四绝缘线） ， 每两根第四绝缘线对绞加填充在一个内护套 47内 （具体工艺细 节见上述制作方法， 这里不一一赘述） 。 其中： 动力电源线 1的绝缘层 （即第一 绝缘层 11) 厚度为 1.8mm; 接地线 2的绝缘层 （即第二绝缘层 21) 厚度为 1.4mm ； 辅助电源线 3的绝缘层 （即第三绝缘层 31) 厚度为 1.0mm; 信号传输控制线 4的 绝缘线的绝缘层 （即第四绝缘层 41) 厚度为 0.5mm; 内护套 47的厚度为 0.6mm， 外护套 7的厚度为 2.4mm。 [0051] 2) Still referring to FIG. 1, the second quick charging cable includes: two power supply lines 1 having a cross-sectional area of 120 mm 2 , a ground line 2 having a cross-sectional area of 35 mm 2 , and two cross sections An auxiliary power supply line 3 having an area of 6 mm 2 and four insulated lines (i.e., the fourth insulated line) having a cross-sectional area of 1 mm 2 constituting the signal transmission control line 4, each of the four fourth insulated wires are twisted It is filled in an inner sheath 47 (see the above manufacturing method for details of the process, which will not be described here). Wherein: the insulating layer of the power supply line 1 (ie, the first insulating layer 11) has a thickness of 1.8 mm; the insulating layer of the grounding line 2 (ie, the second insulating layer 21) has a thickness of 1.4 mm; and the insulating layer of the auxiliary power supply line 3 (ie The third insulating layer 31) has a thickness of 1.0 mm; the insulating layer of the insulated wire of the signal transmission control line 4 (ie, the fourth insulating layer 41) has a thickness of 0.5 mm; the inner sheath 47 has a thickness of 0.6 mm, and the outer sheath 7 The thickness is 2.4 mm.
[0052] 总而言之， 实施本发明的抗电磁辐射的电动汽车快速充电电缆及其制备方法， 具有以下有益效果：  [0052] In summary, the electric vehicle quick charging cable and the preparation method thereof for implementing the electromagnetic radiation resistant of the present invention have the following beneficial effects:
[0053] 1) 充电电缆所采用的导体为单丝直径小于 0.15mm的无氧铜或者单晶铜， 经过 脉冲电流退火处理， 单位截面积载流能力大， 满足快速充电的要求。  [0053] 1) The conductor used for the charging cable is oxygen-free copper or single crystal copper with a diameter of less than 0.15 mm. After pulse current annealing treatment, the current carrying capacity per unit cross-sectional area is large, meeting the requirements of fast charging.
2) 充电电缆中动力电源线 1、 接地线 2、 辅助电源线 3和信号传输控制线 4的结 构具有较强的机械性能和电气绝缘性能， 信号传输控制线 4与接地线 2相邻， 形 成接地的最短路径， 能够快速释放干扰电磁波。 3) 信号传输控制线 4采用对绞绝缘线作为线芯， 绞距 8~10cm， 减小受扰电路 的回路面积， 减少电线间的电容耦合和互感耦合； 信号传输控制线 4采用了 0.10 mm的镀锡铜丝编织层 45， 编织密度大于等于 85%， 铝塑复合带层 44结合编织层 4 5进行双层屏蔽， 屏蔽效果好； 编织层 45外层涂覆导电胶层 46， 形成全封闭的形 态， 防止外部信号的干扰， 同吋抑制了内部电磁辐射向外泄露。 2) The structure of the power supply line 1, the grounding line 2, the auxiliary power supply line 3 and the signal transmission control line 4 in the charging cable has strong mechanical properties and electrical insulation performance, and the signal transmission control line 4 is adjacent to the grounding line 2 to form The shortest path to ground, which can quickly release interference electromagnetic waves. 3) The signal transmission control line 4 uses a twisted insulated wire as the core, and the lay length is 8~10cm, which reduces the loop area of the disturbed circuit and reduces the capacitive coupling and mutual inductance coupling between the wires; the signal transmission control line 4 adopts 0.10 mm The tinned copper wire braid 45 has a weaving density of 85% or more, and the aluminum-plastic composite tape layer 44 is double-shielded by the braid layer 45 for good shielding effect; the outer layer of the braid layer 45 is coated with the conductive adhesive layer 46 to form a whole The closed form prevents interference from external signals and suppresses the leakage of internal electromagnetic radiation.
[0056] 4) 内护套 47和外护套 7采用 125°C辐照交联低烟无卤阻燃聚乙烯制成。 聚乙烯 作为一种热塑性材料， 其为非极性高分子材料， 分子结构中不含极性基团， 且 结晶度高， 表面自由能低， 惰性较强， 化学性能稳定， 有良好的电性能， 在低 烟无 ¾阻燃聚乙烯中添加石墨粉这种吸波材料， 可增强内护套 47和外护套 7吸收 电磁波、 抗电磁辐射的能力。  [0056] 4) The inner sheath 47 and the outer sheath 7 are made of 125 ° C radiation crosslinked low-smoke halogen-free flame-retardant polyethylene. As a thermoplastic material, polyethylene is a non-polar polymer material, which does not contain polar groups in the molecular structure, and has high crystallinity, low surface free energy, strong inertia, stable chemical properties, and good electrical properties. The addition of graphite powder to the low-smoke flame retardant polyethylene can enhance the ability of the inner sheath 47 and the outer sheath 7 to absorb electromagnetic waves and resist electromagnetic radiation.
[0057] 尽管已描述了本发明的优选实施例， 但本领域内的技术人员一旦得知了基本创 造性概念， 则可对这些实施例做出另外的变更和修改。 所以， 所附权利要求意 欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。  [0057] While the preferred embodiment of the invention has been described, it will be apparent that those skilled in the art can make further changes and modifications to these embodiments once the basic inventive concept is known. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and
[0058] 显然， 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的 精神和范围。 这样， 倘若本发明的这些修改和变型属于本发明权利要求及其等 同技术的范围之内， 则本发明也意图包含这些改动和变型在内。  [0058] It will be apparent to those skilled in the art that various modifications and changes can be made in the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and the modifications of the invention

Claims

权利要求书 Claim
一种电动汽车快速充电电缆， 其特征在于， 包括： 用于传输动力电源 充电电流的动力电源线、 用于提供接地保护的接地线、 用于在低压下 辅助充电的辅助电源线和用于传输充电状态信号的信号传输控制线； 所述动力电源线、 所述接地线、 所述辅助电源线和所述信号传输控制 线分别包括铜导体和包覆于铜导体外侧的绝缘层； 其中， 所述信号传 输控制线与所述接地线相邻， 形成接地的最短路径； An electric vehicle quick charging cable, comprising: a power power line for transmitting a power source charging current, a grounding wire for providing grounding protection, an auxiliary power line for auxiliary charging at a low voltage, and for transmitting a signal transmission control line of the charging state signal; the power power line, the ground line, the auxiliary power line, and the signal transmission control line respectively comprise a copper conductor and an insulating layer covering the outside of the copper conductor; The signal transmission control line is adjacent to the ground line to form a shortest path of the ground;
所述信号传输控制线还包括： 填充于对应绝缘层上的尼龙丝绳， 相继 缠绕的铝塑复合带层， 包裹于所述铝塑复合带层上的镀锡铜丝编织层 ， 涂覆于所述编织层上的导电胶层， 以及挤包于所述导电胶层上的内 护套； The signal transmission control line further includes: a nylon wire rope filled on the corresponding insulating layer, a sequentially wound aluminum-plastic composite tape layer, a tinned copper wire braid wrapped on the aluminum-plastic composite tape layer, coated on a conductive adhesive layer on the woven layer, and an inner sheath extruded on the conductive adhesive layer;
所述快速充电电缆还包括： 填充于所述动力电源线、 所述接地线、 所 述辅助电源线和所述信号传输控制线构成的线组上的高强度 PP绳， 相继绕包的包带层， 以及紧压于所述包带层上的外护套。 The quick charging cable further includes: a high-strength PP rope filled on a line group formed by the power power line, the ground line, the auxiliary power line, and the signal transmission control line, and a package wrapped in a package a layer, and an outer jacket that is pressed against the tape layer.
如权利要求 1所述的电动汽车快速充电电缆， 其特征在于， 所述快速 充电电缆所采用的铜导体为经过脉冲电流退火处理的无氧铜或者单晶 铜， 所述无氧铜或者单晶铜的单丝直径小于 0.15mm。 The electric vehicle quick charging cable according to claim 1, wherein the copper conductor used in the fast charging cable is oxygen-free copper or single crystal copper which is subjected to pulse current annealing treatment, the oxygen-free copper or single crystal. The diameter of the monofilament of copper is less than 0.15 mm.
如权利要求 1所述的电动汽车快速充电电缆， 其特征在于， 所述信号 传输控制线包括两根由铜导体外包绝缘层构成的绝缘线， 两根所述绝 缘线对绞， 绞距为 8~10cm。 The electric vehicle quick charging cable according to claim 1, wherein the signal transmission control line comprises two insulated wires composed of an outer insulating layer of a copper conductor, and the two insulated wires are twisted, and the lay length is 8~ 10cm.
如权利要求 1所述的电动汽车快速充电电缆， 其特征在于， 所述镀锡 铜丝的直径为 O. lOmrn, 所述镀锡铜丝编织层的编织密度大于 85%。 如权利要求 1所述的电动汽车快速充电电缆， 其特征在于， 所述快速 充电电缆中绝缘层的厚度为 0.5~1.8mm， 所述内护套的厚度为 0.5~0.8 mm, 所述外护套的厚度为 2.2~2.4mm。 The electric vehicle quick charging cable according to claim 1, wherein the tin-plated copper wire has a diameter of 0.1 nm, and the tin-plated copper wire braid has a braid density of more than 85%. The quick charging cable for an electric vehicle according to claim 1, wherein the thickness of the insulating layer in the quick charging cable is 0.5 to 1.8 mm, and the thickness of the inner sheath is 0.5 to 0.8 mm. The thickness of the sleeve is 2.2~2.4mm.
如权利要求 1所述的电动汽车快速充电电缆， 其特征在于， 所述快速 充电电缆中绝缘层由热塑性 TPEE复合材料制成。 The electric vehicle quick charging cable according to claim 1, wherein the insulating layer of the quick charging cable is made of a thermoplastic TPEE composite material.
如权利要求 1所述的电动汽车快速充电电缆， 其特征在于， 所述内护 套和所述外护套均由 125°C辐照交联低烟无¾阻燃聚乙烯制得， 所述 内护套和所述外护套中添加有石墨粉。 The electric vehicle quick charging cable according to claim 1, wherein said internal protection Both the sleeve and the outer sheath are made of 125 ° C radiation cross-linked low-smoke flame-free polyethylene, and graphite powder is added to the inner sheath and the outer sheath.
[权利要求 8] —种电动车快速充电电缆的制备方法， 其特征在于， 包括以下步骤： [Claim 8] A method for preparing an electric vehicle quick charging cable, comprising the steps of:
51、 通过将铜导体材料拉丝、 脉冲电流退火、 绞合处理后， 获得多根 铜导体；  51. After drawing the copper conductor material, annealing the pulse current, and stranding, obtaining a plurality of copper conductors;
52、 采用挤压式模具在每根所述铜导体外包覆绝缘层， 以得到至少两 根第一绝缘线、 至少一根第二绝缘线、 至少一根第三绝缘线和至少两 根第四绝缘线； 其中， 所述第一绝缘线为动力电源线， 所述第二绝缘 线为接地线， 所述第三绝缘线为辅助电源线， 所述第四绝缘线用于构 成信号传输控制线；  52. An insulating layer is coated on each of the copper conductors by using an extrusion die to obtain at least two first insulated wires, at least one second insulated wire, at least one third insulated wire, and at least two The fourth insulated wire is a power supply line, the second insulated wire is a ground wire, the third insulated wire is an auxiliary power line, and the fourth insulated wire is used for signal transmission control Line
53、 将每两根所述第四绝缘线对绞， 加尼龙丝绳填充， 相继缠绕铝塑 复合带层， 在所述铝塑复合带层上包裹镀锡铜丝编织层， 在所述编织 层上涂覆导电胶层， 以及在所述导电胶层上挤包内护套， 最终得到所 述信号传输控制线；  53. Each of the four insulated wires is twisted, filled with a nylon wire, and sequentially wound with an aluminum-plastic composite tape layer, and a copper-plated copper wire braid is wrapped on the aluminum-plastic composite tape layer. Coating a conductive adhesive layer on the layer, and extruding the inner sheath on the conductive adhesive layer to finally obtain the signal transmission control line;
54、 将所述动力电源线、 所述接地线、 所述辅助电源线和所述信号传 输控制线构成线组， 并在所述线组上填充高强度 PP绳， 相继绕包无 纺布以形成包带层；  54. The power power line, the grounding line, the auxiliary power line, and the signal transmission control line are formed into a line group, and the line group is filled with a high-strength PP rope, and the non-woven fabric is sequentially wrapped. Forming a tape layer;
55、 在所述包带层上紧压外护套。  55. Pressing the outer sheath on the tape layer.
PCT/CN2016/094602 2015-09-24 2016-08-11 Quick charging cable for electric vehicle and preparation method therefor WO2017050050A1 (en)

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