CN105702331A - 氟塑料绝缘电缆 - Google Patents

氟塑料绝缘电缆 Download PDF

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Publication number
CN105702331A
CN105702331A CN201610255031.0A CN201610255031A CN105702331A CN 105702331 A CN105702331 A CN 105702331A CN 201610255031 A CN201610255031 A CN 201610255031A CN 105702331 A CN105702331 A CN 105702331A
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唐元阳
朱云川
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Advanced Microwave Technologies
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Advanced Microwave Technologies
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0233Cables with a predominant gas dielectric
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0275Disposition of insulation comprising one or more extruded layers of insulation
    • H01B7/0283Disposition of insulation comprising one or more extruded layers of insulation comprising in addition one or more other layers of non-extruded insulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0291Disposition of insulation comprising two or more layers of insulation having different electrical properties
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1805Protections not provided for in groups H01B7/182 - H01B7/26
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/184Sheaths comprising grooves, ribs or other projections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/185Sheaths comprising internal cavities or channels
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/1875Multi-layer sheaths

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  • Insulated Conductors (AREA)
  • Organic Insulating Materials (AREA)

Abstract

本发明属于电缆技术领域,涉及一种氟塑料绝缘电缆,包括内导体、包覆于所述内导体外的含氟塑料层,所述含氟塑料层包括同心设置的内层和外层以及连接于所述内层和所述外层之间的若干辐条,所述内层、外层以及辐条一体成型。本发明不仅加工方便,而且可以实现电缆综合介电常数的降低,还能缓冲外力、外界温度的冲击,保护了内导体。

Description

氟塑料绝缘电缆
技术领域
本发明涉及电缆技术领域,特别涉及一种氟塑料绝缘电缆。
背景技术
目前市场上的电线电缆使用的含氟塑料绝缘,但其介电常数高于所需的理想值,需要降低其综合介电常数。其方法有以下两种:
a:PTFE材料通过物理、化学方法将其加工成微孔结构(如绝缘整体拉伸发泡、拉伸微孔带绕包、打孔PTFE带绕包等)。
b:其他含氟塑料材料,通过物理方法、化学方法将其加工成泡沫结构(如物理发泡)。
这两种方法都是利用气体介电常数非常低的特点,使气体在含氟塑料中分散开来实现降低综合介电常数,只是这些方法存在加工工艺复杂、加工设备较普通设备昂贵、加工过程不稳定因素多等不利因素。
因此,有必要提供一种新的电缆来规避以上问题。
发明内容
本发明的主要目的在于提供一种氟塑料绝缘电缆。
本发明通过如下技术方案实现上述目的:一种氟塑料绝缘电缆,包括内导体、包覆于所述内导体外的含氟塑料层,所述含氟塑料层包括同心设置的内层和外层以及连接于所述内层和所述外层之间的若干辐条,所述内层、外层以及辐条一体成型。
具体的,所述辐条绕所述含氟塑料层的轴线均布。
具体的,所述内层、外层和辐条之间围成若干个贯通电缆长度方向的隔腔。
进一步的,所述隔腔内填充有低介电常数的填料。
具体的,所述外层的外侧设有若干沿电缆长度方向延伸的齿状脊。
具体的,所述内层和所述外层之间还设有中间层,所述中间层与所述内层通过若干内辐条连接,所述中间层与所述外层通过若干外辐条连接。
采用上述技术方案,本发明技术方案的有益效果是:
1、本发明不仅加工方便,而且可以实现电缆绝缘综合介电常数的降低,还能缓冲外力、外界温度的冲击,保护了内导体;
2、均布于内层和外层之间的辐条可以保持电缆内外层的同心度;
3、低介电常数的填料可在降低电缆绝缘综合介电常数的前提下减轻电缆的重量,节约材料;
4、齿状脊能够对电缆的径向起到明显的外力缓冲作用,防止其在受到外力的时候损伤到内导体;
5、中间层能起到对含氟塑料层的补强作用,此结构也提高了含氟塑料层的缓冲性能。
附图说明
图1为实施例1氟塑料绝缘电缆的截面图;
图2为实施例2氟塑料绝缘电缆的截面图;
图3为实施例3氟塑料绝缘电缆的截面图;
图4为实施例4氟塑料绝缘电缆的截面图。
图中数字表示:
1-内导体;
2-含氟塑料层,
21-内层,
22-外层,
221-齿状脊,
23-辐条,
231-内辐条,
232-外辐条,
24-隔腔,
25-中间层;
3-填料。
具体实施方式
下面结合具体实施例对本发明作进一步详细说明。
实施例1:
如图1所示,一种氟塑料绝缘电缆,包括内导体1、包覆于内导体1外的含氟塑料层2,含氟塑料层2包括同心设置的内层21和外层22以及连接于内层21和外层22之间的若干辐条23,内层21、外层22以及辐条23一体成型。内层21、外层22和辐条23之间围成若干个贯通电缆的隔腔24,这些隔腔24可以灌注空气,这样利用空气的低介电常数特性,含氟塑料层2的综合介电常数就可以下降;同时辐条23能够缓冲外界振动,保护了内导体1;而且含氟塑料层2的这种结构可以仅通过挤塑得到,加工相比发泡或微孔型材料更简单。
如图1所示,辐条23绕含氟塑料层2的轴线均布。均布于内层21和外层22之间的辐条23可以保持电缆内外侧的同心度。
实施例2:
如图2所示,与实施例1的不同之处在于:隔腔24内填充有低介电常数的填料3。因为填料3多少会增加综合介电常数,所以优先选用低介电常数的填料3。填料3作为固体,填补于隔腔24内可以维持电缆的强度,避免电缆弯折量过大而折断。
实施例3:
如图3所示,与实施例1的不同之处在于:外层22的外侧设有若干沿电缆轴向延伸的齿状脊221。齿状脊221能够对电缆的径向起到明显的外力缓冲作用,防止其在受到外力的时候损伤到内导体1。
实施例4:
如图4所示,与实施例1的不同之处在于:内层21和外层22之间还设有中间层25,中间层25与内层21通过若干内辐条231连接,中间层25与外层22通过若干外辐条232连接。中间层25能起到对含氟塑料层2的补强作用,此结构也提高了含氟塑料层2的缓冲性能。
以上所述的仅是本发明的一些实施方式。对于本领域的普通技术人员来说,在不脱离本发明创造构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。

Claims (6)

1.一种氟塑料绝缘电缆,包括内导体、包覆于所述内导体外的含氟塑料层,其特征在于:所述含氟塑料层包括同心设置的内层和外层以及连接于所述内层和所述外层之间的若干辐条,所述内层、外层以及辐条一体成型。
2.根据权利要求1所述的氟塑料绝缘电缆,其特征在于:所述辐条绕所述含氟塑料层的轴线均布。
3.根据权利要求1所述的氟塑料绝缘电缆,其特征在于:所述内层、外层和辐条之间围成若干个贯通电缆长度方向的隔腔。
4.根据权利要求3所述的氟塑料绝缘电缆,其特征在于:所述隔腔内填充有低介电常数的填料。
5.根据权利要求1所述的氟塑料绝缘电缆,其特征在于:所述外层的外侧设有若干沿电缆长度方向延伸的齿状脊。
6.根据权利要求1所述的氟塑料绝缘电缆,其特征在于:所述内层和所述外层之间还设有中间层,所述中间层与所述内层通过若干内辐条连接,所述中间层与所述外层通过若干外辐条连接。
CN201610255031.0A 2016-04-22 2016-04-22 氟塑料绝缘电缆 Pending CN105702331A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107154289A (zh) * 2017-05-05 2017-09-12 吉林大学 一种仿生抗冲蚀架空导线
CN111145944A (zh) * 2019-12-10 2020-05-12 安徽华津电缆集团有限公司 一种耐高温绝缘光伏电缆

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* Cited by examiner, † Cited by third party
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CN101383202A (zh) * 2007-08-02 2009-03-11 亿讯集团 一种低介电常数的同轴电缆及其制造方法和工具
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WO2015068541A1 (ja) * 2013-11-11 2015-05-14 東京特殊電線株式会社 中空コア体および同軸ケーブル
CN204632355U (zh) * 2015-04-24 2015-09-09 江苏华旺科技有限公司 一种防滑且耐电压的铜包铝镁合金线

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1902718A (zh) * 2003-12-31 2007-01-24 纳幕尔杜邦公司 具有空气通道的糊料挤压绝缘体
CN101383202A (zh) * 2007-08-02 2009-03-11 亿讯集团 一种低介电常数的同轴电缆及其制造方法和工具
JP5107469B2 (ja) * 2012-02-01 2012-12-26 宇部日東化成株式会社 同軸ケーブル用中空コア体の製造に用いる成形ダイス
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CN104240838A (zh) * 2014-09-22 2014-12-24 华迅工业(苏州)有限公司 以太网用屏蔽八类对称数据电缆
CN204632355U (zh) * 2015-04-24 2015-09-09 江苏华旺科技有限公司 一种防滑且耐电压的铜包铝镁合金线

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107154289A (zh) * 2017-05-05 2017-09-12 吉林大学 一种仿生抗冲蚀架空导线
CN111145944A (zh) * 2019-12-10 2020-05-12 安徽华津电缆集团有限公司 一种耐高温绝缘光伏电缆
CN111145944B (zh) * 2019-12-10 2021-06-25 安徽华津电缆集团有限公司 一种耐高温绝缘光伏电缆

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Application publication date: 20160622