EP3336856A1 - Conduite électrique - Google Patents

Conduite électrique Download PDF

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Publication number
EP3336856A1
EP3336856A1 EP16306706.9A EP16306706A EP3336856A1 EP 3336856 A1 EP3336856 A1 EP 3336856A1 EP 16306706 A EP16306706 A EP 16306706A EP 3336856 A1 EP3336856 A1 EP 3336856A1
Authority
EP
European Patent Office
Prior art keywords
line
electrical
conductor
wires
additional conductor
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP16306706.9A
Other languages
German (de)
English (en)
Inventor
Andreas Rietz
Angela Brutler
Philipp TEEPE
Michael Dietrich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nexans SA
Original Assignee
Nexans SA
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 Nexans SA filed Critical Nexans SA
Priority to EP16306706.9A priority Critical patent/EP3336856A1/fr
Priority to PCT/EP2017/083161 priority patent/WO2018109214A1/fr
Publication of EP3336856A1 publication Critical patent/EP3336856A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
    • H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables

Definitions

  • the invention relates to an electrical line for the connection of portable electrical loads to a supply source having a surrounded by a sheath of insulating core soul in which at least both the power supply and the data transmission, consisting of insulated electrical conductors wires are arranged ( EP 2 172 946 B1 ).
  • Such lines are used for example in drag chains and for connecting mobile devices, in particular robots, with a voltage or signal source.
  • the cables must be mechanically strong, with a constant bending fatigue life over a long period of time.
  • Essential for the life of the lines is the number of cycles or bending cycles that they must withstand without damaging their head. For example, in prior art, the number of motion cycles is counted with a suitable device.
  • the cable can be replaced at the latest after reaching a predetermined number of movement cycles. This may possibly be a still usable line to be replaced too soon. However, it must then be replaced by a new line in any case, if due to a defect in the line, such as a conductor break, a device connected to the same comes to a halt.
  • the invention has for its object to make the line initially described so that an effective statement on the functionality of the same is obtained.
  • the line additionally has at least one connected to an electrical power source, insulated electrical conductor, which is electrically connected to the electrical resistance of the same monitoring device, to which a signal or display device is connected ,
  • This line has with the additional insulated conductor on a sensor that serves as a monitoring element for the functionality of the line.
  • the conductor is connected to a power source independently of the wires of the cable and connected to a signal or display device. Its electrical resistance is continuously measured during operation of the line. A substantial change in the resistance value, as given, for example, and in particular by a breakage of the conductor, is detected by the signaling device. This leads to an acoustic and / or visual signal or to an error indication. Since the additional conductor participates in all movements of the line, in particular their bending movements, it can be assumed when triggering the signal or upon detection of the display that the line must be replaced, because in the foreseeable future at least one of the conductors of the wires of the line breaks. The safety in the operation of the line against a failure of the same is thus substantially increased by the additional conductor. It can be assumed that the line as a whole is functional as long as the electrical resistance of the additional conductor does not change significantly.
  • the additional conductor must be connected to the cable along its entire length in such a way that it participates in all movements of the same. In this sense it could lie outside of it and be fastened to the same along its entire length.
  • the additional conductor is integrated in the line core, so that it is enclosed by the jacket.
  • the additional conductor of the same material as the conductors of the wires of the line in particular of copper.
  • the electrically conductive cross section of the additional conductor is advantageously dimensioned according to the electrically conductive cross section of the conductor of the wire of the line, which is the smallest in relation to the other wires of the line.
  • a second additional conductor could be used, the electrically conductive cross section is slightly larger or smaller than that of the first additional conductor.
  • Voltage source and data source are known in principle. They are therefore not shown for clarity.
  • a portable electrical consumer 3 is connected to the line 2, for example a robot. It can be moved in different directions. This is indicated by the double arrow 4.
  • the line 2 can also be used as a line in a drag chain, in which, for example, a lifting device is moved back and forth. In all possible applications, the line 2 is constantly reciprocated and thereby bent and aligned again straight and bent again.
  • a signal or display device 5 is arranged, which is also connected to the line 2.
  • the line 2 has in the in Fig. 2 illustrated embodiment, two of the power supply wires 6 and 7 and two data transmission serving wires 8 and 9.
  • To the line 2 also includes a control wire 10 and an additional insulated conductor 11.
  • the wires 6 to 10 each consist of an electrical conductor surrounded by insulation. Together with the insulated conductor 11, they form the line core of the line 2.
  • a material for the insulation for example, polyethylene or polyvinyl chloride is used.
  • the cable core is surrounded by a jacket 12, which advantageously consists of a halogen-free material, such as polyurethane.
  • the cavities between the jacket 12 and the wires 6 to 10 and the conductor 11 may be filled by an inner jacket 13, which consists of a suitable insulating material as filler material.
  • an inner jacket 13 which consists of a suitable insulating material as filler material.
  • the inner shell 13 also known filling elements of suitable insulating material could be used.
  • the additional conductor 11 is connected to its own power source and to a measuring device which measures the value of its electrical resistance during the operation of the line 2. If the resistance changes significantly, for example due to a conductor break, an acoustic or optical signal is triggered on the signal or display device 5 and / or a corresponding change is displayed.
  • the additional conductor 11 is integrated in the illustrated embodiment in the Kausseele, so also surrounded by the jacket 12. He could also be connected as a separate conductor outside of the jacket 12 with the line 2, as long as it is ensured that he is so firmly connected to the same along the entire length of the conduit 2, that he participates in all movements of the same.
  • the line 2 is thus fully functional.
  • the electrically conductive cross section of the additional conductor 11 is advantageously selected equal to the cross section of the control wire 10, which has the smallest electrically conductive cross section of all wires 6 to 10 of the line 2. It is assumed that the wire with the smallest electrically conductive cross-section is the weakest link in the structure of the line 2 and that its conductor optionally breaks first. To further increase the reliability of the statement of the sensor "additional conductor", the line 2 may - as already mentioned - also be equipped with a second additional conductor whose electrically conductive cross section is larger or smaller than that of the first additional conductor 11.

Landscapes

  • Insulated Conductors (AREA)
  • Communication Cables (AREA)
EP16306706.9A 2016-12-16 2016-12-16 Conduite électrique Withdrawn EP3336856A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP16306706.9A EP3336856A1 (fr) 2016-12-16 2016-12-16 Conduite électrique
PCT/EP2017/083161 WO2018109214A1 (fr) 2016-12-16 2017-12-15 Ensemble comprenant une ligne électrique et une source de courant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16306706.9A EP3336856A1 (fr) 2016-12-16 2016-12-16 Conduite électrique

Publications (1)

Publication Number Publication Date
EP3336856A1 true EP3336856A1 (fr) 2018-06-20

Family

ID=57680190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16306706.9A Withdrawn EP3336856A1 (fr) 2016-12-16 2016-12-16 Conduite électrique

Country Status (2)

Country Link
EP (1) EP3336856A1 (fr)
WO (1) WO2018109214A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN220741020U (zh) * 2020-07-24 2024-04-09 苏州宝时得电动工具有限公司 电连接器，电动工具组件，控制装置组件及电动工具系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160331A1 (en) * 2003-02-13 2004-08-19 Hung-Hsing Chiu Cable structure having a wear detection function
EP2172946B1 (fr) 2008-09-12 2011-01-05 Nexans Câble électrique destiné à la connexion d'appareils électriques mobiles
US20140368214A1 (en) * 2013-06-14 2014-12-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives Electric cable wear control system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61224212A (ja) * 1985-03-28 1986-10-04 日立電線株式会社 屈曲寿命検知線入りケ−ブル
JPH11213768A (ja) * 1998-01-22 1999-08-06 Nec Eng Ltd ケーブル寿命予測装置及びそれに使用するケーブル
JP4544812B2 (ja) * 2002-06-12 2010-09-15 アロカ株式会社 ケーブル
JP4967442B2 (ja) * 2006-04-28 2012-07-04 日立電線株式会社 断線検知機能付きケーブル
KR101996003B1 (ko) 2013-06-17 2019-07-04 에스케이하이닉스 주식회사 클록 제어 장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040160331A1 (en) * 2003-02-13 2004-08-19 Hung-Hsing Chiu Cable structure having a wear detection function
EP2172946B1 (fr) 2008-09-12 2011-01-05 Nexans Câble électrique destiné à la connexion d'appareils électriques mobiles
US20140368214A1 (en) * 2013-06-14 2014-12-18 Commissariat A L'energie Atomique Et Aux Energies Alternatives Electric cable wear control system

Also Published As

Publication number Publication date
WO2018109214A1 (fr) 2018-06-21

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