WO2014161202A1 - 一种贯通地线 - Google Patents

一种贯通地线 Download PDF

Info

Publication number
WO2014161202A1
WO2014161202A1 PCT/CN2013/073774 CN2013073774W WO2014161202A1 WO 2014161202 A1 WO2014161202 A1 WO 2014161202A1 CN 2013073774 W CN2013073774 W CN 2013073774W WO 2014161202 A1 WO2014161202 A1 WO 2014161202A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
metal
protective layer
cable core
ground wire
Prior art date
Application number
PCT/CN2013/073774
Other languages
English (en)
French (fr)
Inventor
孙健
陈烁烁
Original Assignee
潮州三环(集团)股份有限公司
南充三环电子有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 潮州三环(集团)股份有限公司, 南充三环电子有限公司 filed Critical 潮州三环(集团)股份有限公司
Publication of WO2014161202A1 publication Critical patent/WO2014161202A1/zh

Links

Classifications

    • 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
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • H01B7/292Protection against damage caused by extremes of temperature or by flame using material resistant to heat
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/02Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
    • H01B3/12Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
    • 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
    • H01B7/28Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806Protection against damage caused by corrosion

Definitions

  • the utility model belongs to the technical field of wire and cable, in particular to a railway signal grounding cable. Background technique
  • the commonly used through ground wire is composed of a plurality of copper wire cores twisted into a cable core according to a certain twisting manner, and then a layer of conductive plastic, metal or alloy sheath is wrapped around the core of the cable.
  • Conductive plastics generally add carbon black to the polymer to achieve electrical conductivity. They all have the disadvantages that are generally difficult to overcome with polymer materials: flammability, poor aging performance, and poor strength.
  • the commonly used lead sheath does not meet the environmental protection requirements, and the life of the aluminum alloy sheath is still not enough. Others such as iron and nickel alloys have their own advantages such as self-importance and high price. Utility model content
  • the technical problem to be solved by the utility model is to provide a grounding wire which is corrosion-resistant, high-temperature resistant, oxidation-resistant, strong in strength, low in cost and environmentally friendly.
  • the technical solution adopted by the utility model is: a through ground wire, comprising a cable core composed of a plurality of metal wires, the cable core is externally coated with an inner protective layer, and the inner protective layer The outer surface is coated with a transition layer, and the outer surface of the transition layer is coated with an outer protective layer.
  • the outer protective layer is a ceramic layer.
  • the outer protective layer is a ceramic-metal composite layer.
  • the metal is zinc or magnesium or indium.
  • the inner protective layer is a metal aluminum or aluminum alloy sheath layer.
  • the transition layer is a metal-nonmetal composite layer.
  • the metal in the metal-nonmetal composite layer, the metal is nickel or copper or tungsten or aluminum or chromium or a combination thereof, and the nonmetal is phosphorus, boron or metal phosphate.
  • the inner protective layer is a metal aluminum or aluminum alloy sheath layer
  • the transition layer is a zinc metal layer
  • the outer protective layer is a metal-non The metal composite layer, wherein the metal is nickel or copper or tungsten or aluminum or chromium or a combination thereof, and the non-metal is phosphorus, boron or metal phosphate.
  • the core is composed of a plurality of metal wires which are arranged side by side in parallel to form the core, or stranded to integrally form the core.
  • the metal wire is a copper wire.
  • the outer core of the cable core is provided with three protective layers, the inner protective layer, the transition layer and the outer protective layer, which can fully exert the protection effect on the cable core.
  • the penetrating ground wire of the utility model has excellent corrosion resistance, oxidation resistance and high temperature resistance. , high strength, environmentally friendly and low cost.
  • FIG. 1 is a schematic structural view of an embodiment of a through-ground wire of the present invention.
  • a through-ground embodiment of the present invention includes a cable core 1 composed of a plurality of metal wires, the outer core of the cable core 1 is covered with an inner protective layer 2, and the outer surface of the inner protective layer 2 is covered with a transition layer. 3, the outer surface of the transition layer 3 is covered with an outer protective layer 4.
  • the core 1 is generally made of a copper conductor. Of course, it is not excluded to use other conductive metal cables, and other metal cables, as long as they adopt the structure of the present invention, should fall within the scope of protection of the present invention. Typically, the seven metal wires are parallel or twisted together to form a core 1 at the center, and of course other numbers of wires.
  • the inner protective layer 2 is a metal aluminum or aluminum alloy sheath layer.
  • metal aluminum and its alloy other environmentally friendly metals or alloys such as tin, magnesium, nickel, etc. may be used to provide protection for the cable core. It also avoids pollution to the environment. However, the price of tin and nickel is too high, it is unlikely to completely replace aluminum, and magnesium is too weak, but it can be used as an alloy component.
  • the transition layer 3 coated on the inner protective layer 2 is a metal-nonmetal composite layer, in which the metal is one or a combination of nickel, copper, tungsten, aluminum, and chromium, and the non-metal It may be phosphorus (P), boron (B) or metal phosphate.
  • the layer has the advantages of corrosion resistance, oxidation resistance, high temperature resistance, adjustable mechanical properties and good electrical conductivity. It can be between the aluminum sheath layer and the ceramic layer. It plays a buffering transition and at the same time facilitates the adhesion of the ceramic layer in the back step.
  • the metal-nonmetal composite layer is plated on the outer surface of the inner protective layer 2 by an electroless plating process.
  • the outer protective layer 4 coated on the outer surface of the transition layer 3 is a ceramic layer, wherein the ceramic is preferably a semiconductor oxide such as doped tin oxide, zinc oxide, indium oxide, cuprous oxide or cerium oxide. It can also be other component ceramics. This layer has excellent corrosion resistance, oxidation resistance and high temperature resistance.
  • the ceramic layer may be coated on the outer surface of the transition layer 3 by a physical vapor phase method or a chemical vapor phase method.
  • the grounding wire is different from the first embodiment described above only in the improvement of the outer protective layer 4.
  • the thermal physics of the ceramic ceramic layer is improved.
  • a metal such as zinc, magnesium or indium may be added to the ceramic layer as needed to form a ceramic-metal composite layer.
  • the ceramic layer or ceramic-metal composite layer is coated on the outer surface of the transition layer 3 by supersonic spraying.
  • the inner protective layer 2 is still a metal aluminum alloy sheath layer
  • the transition layer 3 is a zinc metal layer formed by electroless plating on the outer surface of the metal aluminum alloy sheath layer.
  • the transition layer 3 of the zinc metal layer provides further protection for the core 1, as well as adhesion of the outer protective layer 4.
  • the outer protective layer 4 is a metal-nonmetal composite layer electrolessly plated on the outer surface of the zinc metal layer, wherein the metal is one or a combination of nickel, copper, tungsten, aluminum, and chromium, and the non-metal may be phosphorus.
  • P boron
  • B metal phosphate
  • the outer core of the cable core is provided with three protective layers, an inner protective layer, a transition layer and an outer protective layer, which can fully exert the protection effect on the cable core.
  • Aluminum metal or aluminum alloy as inner protective layer can provide good protection for the cable core, and it is environmentally friendly; it is coated with metal-non-metal protective layer on the inner protective layer, which has corrosion resistance, oxidation resistance and high temperature resistance.
  • it can play a buffer transition between the inner protective layer and the outer protective layer, and at the same time facilitate the adhesion of the ceramic layer in the latter step.
  • the outer protective layer is coated on the outer layer of the transition layer, in particular, the ceramic layer is added or the metal is added to the ceramic to form a ceramic-metal composite layer, which greatly improves the corrosion resistance of the grounding wire, and the penetrating ground wire of the utility model has excellent performance. Corrosion resistance, oxidation resistance, high temperature resistance, high strength.
  • the technical solution of the utility model does not require the use of precious metals of high importance and high price, thereby saving costs.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Insulated Conductors (AREA)

Abstract

一种贯通地线,其包括由多根金属线组成的缆芯(1),缆芯外部包覆有内防护层(2),内防护层外表面包覆有过渡层(3),过渡层外表面包覆有外防护层(4)。其中,内防护层为金属铝合金层,过渡层为金属-非金属复合层,外防护层为陶瓷层或陶瓷-金属复合层。由于该贯通地线的缆芯外部设有三层防护层,可以充分发挥对缆芯的保护作用,从而使得该地线具有优异的耐腐蚀、抗氧化和耐高温性能,并且具有高强度、环保和成本较低的优点。

Description

一种贯通地线 技术领域
本实用新型属于电线电缆技术领域, 尤其涉及一种铁路信号接地电缆。 背景技术
随着铁路的高速发展, 对铁路信号提出了更高的要求, 信号向着现代化、 数字化的方向发展, 对于信号系统接地可靠性以及环境友好性提出了更高要求, 迫切需要新型的耐高温环保贯通地线电缆。
目前常用的贯通地线是由多根铜导线芯按一定的绞合方式绞合成缆芯, 再 在其缆芯外包裹一层导电塑料、 金属或合金护套层。 导电塑料一般是在高分子 聚合物中添加碳黑来实现导电的, 它们均存在高分子材料普遍难以克服的不足: 易燃、 老化性能差、 强度差等。 而常用的铅护套不符合环保要求, 取而代之的 铝合金护套寿命仍然不够, 其它诸如铁、 镍合金则存在着自重大、 价格偏高等 不足。 实用新型内容
本实用新型所要解决的技术问题在于提供一种耐腐蚀、 耐高温、 抗氧化、 强度好、 而且成本较低并环保的贯通地线。
为解决上述技术问题, 本实用新型所采用的技术方案是: 一种贯 通地线, 包括由多根金属线组成的缆芯, 所述缆芯外部包覆有内防护 层, 所述内防护层外表面包覆有过渡层, 所述过渡层外表面包覆有外 防护层。
作为本实用新型一种贯通地线技术方案的改进, 所述外防护层为 陶瓷层。
作为本实用新型一种贯通地线技术方案的另一种改进, 所述外防 护层为陶瓷-金属复合层。 作为上述技术方案的改进, 在所述陶瓷-金属复合层中, 金属为锌 或镁或铟。
作为上述技术方案的改进, 所述内防护层为金属铝或铝合金护套 层。
作为上述技术方案的改进, 所述过渡层为金属-非金属复合层。 作为上述技术方案的改进, 所述金属 -非金属复合层中, 金属为镍 或铜或钨或铝或铬或其组合, 非金属为磷、 硼或金属磷酸盐。
作为本实用新型一种贯通地线技术方案的再一种改进, 所述内防 护层为金属铝或铝合金护套层, 所述过渡层为锌金属层, 所述外防护 层为金属-非金属复合层, 其中, 金属为镍或铜或钨或铝或铬或其组 合, 非金属为磷、 硼或金属磷酸盐。
作为上述技术方案的改进, 所述缆芯由多根金属线组成, 所述金 属线平行并列设置形成所述缆芯, 或者绞合于一体形成所述缆芯。
作为上述技术方案的改进, 所述金属线为铜导线。
实施本实用新型的技术方案, 可取得如下有益效果:
缆芯外部设有三层防护层, 内防护层、 过渡层和外防护层, 可以充分发挥 对缆芯的保护作用, 本实用新型的贯通地线, 具有优异的耐腐蚀、 抗氧化、 耐 高温性能, 具有高强度, 环保并且成本较低。
附图说明
图 1是本实用新型一种贯通地线实施例的结构示意图。
具体实施方式
下面结合附图和实施例对本实用新型作进一步说明。
见图 1 ,本实用新型一种贯通地线实施例包括由多根金属线组成的缆 芯 1 , 缆芯 1外部包覆有内防护层 2 , 内防护层 2外表面包覆有过渡层 3 , 过渡层 3外表面包覆有外防护层 4。
缆芯 1 一般采用铜导体, 当然不排除使用其他导电金属缆线, 采 用其他金属缆线, 只要其采用了如本实用新型的结构, 也应落入本实 用新型的保护范围。 通常由七根金属线平行或绞合于一体形成位于中 心的缆芯 1 , 当然也可以是其他数目的金属线。
优选的, 内防护层 2为金属铝或铝合金护套层, 当然, 除了金属 铝及其合金, 也可选用如锡、 镁、 镍等其他环保金属或合金, 在对缆 芯提供保护的同时也能避免对环境造成污染。 但是, 锡和镍的价格偏 高, 完全取代铝不太可能, 而镁则强度太小, 但其均可作为合金成分。
优选的, 包覆于内防护层 2的过渡层 3为金属-非金属复合层, 在 该层中, 金属为镍、 铜、 钨、 铝、 铬中的一种或几种组合使用, 非金 属可以是磷 ( P )、 硼 ( B ) 或金属磷酸盐, 该层具有耐腐蚀、 抗氧化、 耐高温、 机械性能可调、 导电性能好等优点, 可以在铝护套层与陶瓷 层之间发挥緩冲过渡作用, 同时有利于后步陶瓷层的附着。 该金属- 非金属复合层采用化学镀工艺镀于内防护层 2外表面。
优选的, 包覆于过渡层 3外表面的外防护层 4为陶瓷层, 其中, 陶瓷优选为掺杂过的氧化锡、 氧化锌、 氧化铟、 氧化亚铜、 氧化铋等 半导体氧化物, 当然也可以是其他成分陶瓷。 该层具有优异的耐腐蚀、 抗氧化、 耐高温性能。 该陶瓷层可采用物理气相法或化学气相法将其 包覆于过渡层 3外表面。
在本实用新型一种贯通地线的另一种实施例中,其与上述第一种 实施例的区别仅在于对外防护层 4 的改进, 对于外防护层 4 , 为改善 陶瓷层陶瓷的热物理性能, 可在陶瓷层中根据需要添加锌、 镁、 铟等 金属从而形成陶瓷 -金属复合层。 该陶瓷层或陶瓷-金属复合层采用超 音速喷涂技术将其包覆于过渡层 3外表面。
在本实用新型一种贯通地线的再一种实施例中, 内防护层 2仍为金属铝合 金护套层, 过渡层 3 为在金属铝合金护套层外表面化学镀形成的锌金属层, 由 锌金属层构成的过渡层 3在为缆芯 1提供进一步防护的同时, 也有利于外防护 层 4的附着。 外防护层 4则为化学镀于锌金属层外表面的金属-非金属复合层, 其中, 金属为镍、 铜、 钨、 铝、 铬中的一种或几种组合使用, 非金属 可以是磷 ( P )、 硼 ( B ) 或金属磷酸盐, 其与第一种实施例、 第二种 实施例的区别在于, 没有采用陶瓷层或者陶瓷-金属复合层作为外防护 层, 该实施例仍然具有耐腐蚀、 抗氧化、 耐高温、 机械性能可调、 导 电性能好等优点, 其耐腐蚀性和强度会略低于第一、 第二种实施例, 但是成本相应也低于第一、 第二种实施例。
实施本实用新型的技术方案, 缆芯外部设有三层防护层, 内防护层、 过渡 层和外防护层, 可以充分发挥对缆芯的保护作用。 以铝金属或者铝合金作为内 防护层, 可以对缆芯提供艮好的保护作用, 而且环保; 在内防护层外包覆金属- 非金属防护层, 在具有耐腐蚀、 抗氧化、 耐高温、 机械性能可调、 导电性能好 等优点之外, 可在内防护层与外防护层之间发挥緩冲过渡作用, 同时有利于后 一步陶瓷层的附着。 在过渡层外包覆外防护层, 尤其是采用陶瓷层或者在陶瓷 中添加金属形成陶瓷-金属复合层, 大大提高了贯通地线的耐腐蚀性, 使得本实 用新型的贯通地线具有优异的耐腐蚀、 抗氧化、 耐高温性能, 具有高强度。 本 实用新型的技术方案, 不需要用到自重大、 价格高的贵重金属, 因而也节省了 成本。
以上所揭露的仅为本实用新型的较佳实施例而已, 当然不能以此来限定本 实用新型之权利范围, 因此依本实用新型申请专利范围所作的等同变化, 仍属 本实用新型所涵盖的范围。

Claims

权 利 要 求 书
1、 一种贯通地线, 其特征在于: 包括由多根金属线组成的缆芯, 所述缆芯外部包覆有内防护层, 所述内防护层外表面包覆有过渡层, 所述过渡层外表面包覆有外防护层。
2、 如权利要求 1所述的贯通地线, 其特征在于: 所述外防护层为 陶瓷层。
3、 如权利要求 1所述的贯通地线, 其特征在于: 所述外防护层为 陶瓷-金属复合层。
4、 如权利要求 3 所述的贯通地线, 其特征在于: 在所述陶瓷-金 属复合层中, 金属为锌或镁或铟。
5、 如权利要求 1至 4任一项所述的贯通地线, 其特征在于: 所述 内防护层为金属铝或铝合金护套层。
6、 如权利要求 1至 4任一项所述的贯通地线, 其特征在于: 所述 过渡层为金属-非金属复合层。
7、 如权利要求 6 所述的贯通地线, 其特征在于: 所述金属 -非金 属复合层中, 金属为镍或铜或钨或铝或铬或其组合, 非金属为磷、 硼 或金属磷酸盐。
8、 如权利要求 1所述的贯通地线, 其特征在于: 所述内防护层为 金属铝或铝合金护套层, 所述过渡层为锌金属层, 所述外防护层为金 属-非金属复合层, 其中, 金属-非金属复合层中的金属为镍或铜或钨 或铝或铬或其组合, 非金属为磷、 硼或金属磷酸盐。
9、 如权利要求 1至 4任一项或 8所述的贯通地线, 其特征在于: 所述缆芯由多根金属线组成, 所述金属线平行并列设置形成所述缆 芯, 或者绞合于一体形成所述缆芯。
10、 如权利要求 9所述的贯通地线, 其特征在于: 所述金属线为 铜导线。
PCT/CN2013/073774 2013-04-03 2013-04-07 一种贯通地线 WO2014161202A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2013201619895U CN203288307U (zh) 2013-04-03 2013-04-03 一种贯通地线
CN201320161989.5 2013-04-03

Publications (1)

Publication Number Publication Date
WO2014161202A1 true WO2014161202A1 (zh) 2014-10-09

Family

ID=49544660

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/073774 WO2014161202A1 (zh) 2013-04-03 2013-04-07 一种贯通地线

Country Status (2)

Country Link
CN (1) CN203288307U (zh)
WO (1) WO2014161202A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105895229A (zh) * 2016-07-04 2016-08-24 苏州宝兴电线电缆有限公司 一种大截面铜包铝ev车载高压线缆

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106158119B (zh) * 2016-07-14 2018-01-23 广东成天泰电缆实业有限公司 一种高温相变陶瓷电缆

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2862270Y (zh) * 2005-10-13 2007-01-24 西安西电光电缆有限责任公司 环保贯通地线
US20070199731A1 (en) * 2006-02-03 2007-08-30 Sophie Wasiuta Electrical cable protected against corrosion
CN201004351Y (zh) * 2007-01-14 2008-01-09 吴江市光电通信线缆总厂 铁路信号软电缆
CN201068154Y (zh) * 2007-08-06 2008-06-04 中利科技集团股份有限公司 结构改进的环保贯通地线
CN201153051Y (zh) * 2008-01-10 2008-11-19 江苏东强股份有限公司 铁路环保型贯通地线
CN201984866U (zh) * 2011-04-08 2011-09-21 宝胜科技创新股份有限公司 中压卷筒用柔性电缆

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2862270Y (zh) * 2005-10-13 2007-01-24 西安西电光电缆有限责任公司 环保贯通地线
US20070199731A1 (en) * 2006-02-03 2007-08-30 Sophie Wasiuta Electrical cable protected against corrosion
CN201004351Y (zh) * 2007-01-14 2008-01-09 吴江市光电通信线缆总厂 铁路信号软电缆
CN201068154Y (zh) * 2007-08-06 2008-06-04 中利科技集团股份有限公司 结构改进的环保贯通地线
CN201153051Y (zh) * 2008-01-10 2008-11-19 江苏东强股份有限公司 铁路环保型贯通地线
CN201984866U (zh) * 2011-04-08 2011-09-21 宝胜科技创新股份有限公司 中压卷筒用柔性电缆

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105895229A (zh) * 2016-07-04 2016-08-24 苏州宝兴电线电缆有限公司 一种大截面铜包铝ev车载高压线缆

Also Published As

Publication number Publication date
CN203288307U (zh) 2013-11-13

Similar Documents

Publication Publication Date Title
CN201788728U (zh) 一种绝缘电线电缆
CN202307250U (zh) 含石墨烯的橡胶绝缘电缆
WO2014161202A1 (zh) 一种贯通地线
CN204066791U (zh) 一种铝包钢芯铝绞线扁平电缆
CN201780810U (zh) 一种复合型软铜绞线
CN204966112U (zh) 一种石墨烯氧化石墨烯电缆
CN204066770U (zh) 一种铝合金芯高导电率铝绞线电缆
CN202049776U (zh) 一种耐高温航空导线
CN203325516U (zh) 柔软型耐1000℃高温测温线
CN203746573U (zh) 一种铝合金导体抗拖拽双屏蔽电缆
CN203760103U (zh) 一种防静电耐腐蚀绝缘电缆
CN203573707U (zh) 新型节能耐高温电缆
CN202275622U (zh) 一种飞机及高端设备发动机用电线
CN213303733U (zh) 一种耐高温镀银铜线
CN204808916U (zh) 一种多用途电缆外绝缘层结构
CN202855332U (zh) 应用于铁路的环保型金属地线
CN204087873U (zh) 一种航空用环保耐高温防火电缆
CN203787101U (zh) 一种高抗拉防锈低磷拉丝不锈钢丝
CN204130249U (zh) 一种环保型阻燃抗干扰电缆
CN203826108U (zh) 一种低烟无卤稀土铝合金电力电缆
CN201477914U (zh) 铜包铝导线
CN201853515U (zh) 一种玻璃丝包漆包铜包铝扁线
CN202373333U (zh) 月球车专用导线
CN103035326A (zh) 一种具有矩形截面导电芯线的电缆线
CN207781242U (zh) 一种耐氧化镀锡铜包钢复合金属线

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13880766

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13880766

Country of ref document: EP

Kind code of ref document: A1