EP3879540A1 - Procédé de fabrication d'un câble étanche aux liquides, utilisation d'un connecteur de soudure correspondante et câble étanche aux liquides - Google Patents

Procédé de fabrication d'un câble étanche aux liquides, utilisation d'un connecteur de soudure correspondante et câble étanche aux liquides Download PDF

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Publication number
EP3879540A1
EP3879540A1 EP20192162.4A EP20192162A EP3879540A1 EP 3879540 A1 EP3879540 A1 EP 3879540A1 EP 20192162 A EP20192162 A EP 20192162A EP 3879540 A1 EP3879540 A1 EP 3879540A1
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EP
European Patent Office
Prior art keywords
liquid
barrier
tight
sealing point
cap element
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.)
Granted
Application number
EP20192162.4A
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German (de)
English (en)
Other versions
EP3879540B1 (fr
EP3879540C0 (fr
Inventor
Jan Eisenberg
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Individual
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Individual
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Application granted granted Critical
Publication of EP3879540B1 publication Critical patent/EP3879540B1/fr
Publication of EP3879540C0 publication Critical patent/EP3879540C0/fr
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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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable

Definitions

  • the present invention relates to a method for producing a liquid-tight cable which comprises at least one stranded wire provided with a sheathing and made up of a plurality of individual wires, a circumferential strip being removed from the sheathing at a sealing point and the individual wires of the braid being removed from a sealant in the area of the sealing point flowed around and pulled through to form a liquid-tight barrier, and wherein a cap element is liquid-tightly connected to the sealing point at least on one side to produce a sealing connection with the jacket, as well as the use of a soldered connection to produce a liquid-tight cable and such a liquid-tight cable.
  • the JP 2009152012 A finally provides for applying a hot-melt adhesive to a stripped area and applying a negative pressure to the cable ends so that the melt is sucked into the cables and seals them.
  • the present invention is based on the object of producing a cost-effective and quickest possible seal for a cable, which enables a high level of tightness with the least possible use of material and labor.
  • the braid is first freed from a circumferential strip of insulating sheathing in the area of a sealing point, that is to say the braid is exposed in a strip.
  • a barrier made of a metal liquefied under the action of heat is then applied to the stranded wire, this creating the possibility that the material of the stranded wire is well coated by the liquid metal, this can also flow between the individual wires and, if necessary, also alloy or alloy with them can flow together.
  • the metal can preferably be liquefied and fused by welding, ultrasonic welding, resistance welding or also by soldering.
  • the metal used can in this respect also be an alloy or a solder, which the latter is in particular provided with a flux.
  • the barrier can also be formed by placing a strip of material, preferably a metal strip, around the wires of the braid, which is then provided with a joining tool to such an extent that the braid is completely liquid-tight.
  • the cap element can be designed as a shrink tube which, due to the action of heat, contracts over the sealing point and seals the connection due to its firm contact with the casing. While the current flow through the cable is unimpeded can take place through the sealing point, the entry of water, or in general liquid entry, ideally even gas entry, is permanently prevented.
  • the shrink tubing can be treated in such a way that it also lies tightly against the barrier in order to completely exclude any flow within the shrink tubing. This is promoted both by a slightly thicker barrier and a slightly more tightly drawn shrink tube.
  • an adhesive to the shrink tube, which can be applied around the inside of the tube wall in an approximately ring-shaped manner in the region of the ends of the shrink tube up to the flush, better up to the overlapping sealing point.
  • This can preferably be a hot melt adhesive, which liquefies under the action of heat and solidifies when it cools.
  • Such an adhesive ring can also be attached in the area of the barrier.
  • the shrink tube it can preferably be transparent, so that it can be recognized through its wall whether its placement is correct.
  • the hot glue will also liquefy when the shrink tube is shrunk, since the application of heat is also required for the shrinking process. Bonding and shrinking become a single work step.
  • a ring made of a solder such as solder
  • solder can be assigned to the inside of the shrink tube, or generally to the cap element. This makes it possible to effect both the shrinkage and gluing of the cap element and the construction of the barrier in a single work step by heating the cap element prepared in this way with a hot air gun.
  • the ring of solder through which the strand was previously inserted and positioned will liquefy, hit the stripped point of the strand and fill it up. Of the Heat shrink tubing will contract over the barrier and jacket, completely sealing the cable in and out.
  • a shrink tube as a cap element, it can also be implemented as a, preferably insulated, metal sleeve, which is also placed around the sealing point and is made available by plastic deformation up to the liquid-tight contact with the casing and / or barrier, possibly with an adhesive in between. In particular, deformation can take place with a joining tool.
  • a good way of using a sleeve element prepared as described above inexpensively is to use a ready-made solder connector which is known for the electrical connection of cable ends. Attaching such a soldered connector to a stripped point in the cable reduces the work steps of the liquid-tight seal for each individual strand / wire to removing a strip of the insulation, covering and positioning the soldering connector and heating it with a hot air gun. This is both extremely material-saving and can be managed with a minimal amount of work.
  • Figure 1 shows a strand 1, which consists of a bundle of individual wires which are surrounded by a sheath 2.
  • the sheathing 2 has, however, been removed in advance in the area of a sealing point 3 in a circumferential strip, so that the individual wires of the braid 1 are exposed.
  • a seal is now to be attached which is intended to prevent moisture from penetrating into the cable, that is between the wire and the sheathing 2 and between the individual wires.
  • Figure 2 shows a second step for this, in which a barrier 4 is first attached in the area of the sealing point 3.
  • the barrier 4 is formed from a solder which was melted under the action of heat and applied to the stripped strand 1.
  • the solder connects to the individual wires of the stranded wire and, due to the low surface tension, which is lowered by the flux present in the solder, such as rosin, runs around and between the wires and wets them.
  • a liquid-tight barrier 4 is formed from the resulting composite strand, which prevents a leakage flow of liquid through the cable or strand 1.
  • the barrier can have approximately the same or a slightly greater thickness than the surrounding areas of the sheathing and completely fills the recessed strip in the longitudinal direction of the cable.
  • the barrier 4 according to the invention is cured within a few seconds.
  • FIG. 3 shows how the cable is overlapped by a cap element 5, which is a tubular shrink tube and in the area of its ends has two rings of heat-melting adhesive 6, so-called hot glue, arranged on the inside of the cap element 5.
  • the cap element 5 is made of a plastic that contracts when exposed to heat, which is also transparent so that the positioning can also be controlled from the outside. If the cap element 5 is correctly placed, i.e. with the barrier 4 between the rings of adhesive 6, it is heated by means of a hot air gun so that the adhesive 6 liquefies and the shrink tubing rests firmly against the casing 2 and the barrier 4 contracts.
  • an additional, in particular centrally arranged ring made of solder can optionally be arranged in the cap element 5, so that the steps of forming the barrier 4 and gluing with the adhesive 6, as well as the contraction of the cap element 5, which are all due to the action of heat, can be carried out in a single process. This saves a considerable amount of time and allows the use of inexpensive, prefabricated soldered connectors in order to carry out the method according to the invention.
  • a method is thus described above to produce a cost-effective and quickest possible seal for a cable, which enables a high level of tightness with the least possible use of material and labor, as well as a corresponding cable.
  • Use is particularly advantageous here a soldered connector as a union element with which several process steps can be carried out in parallel.

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  • Cable Accessories (AREA)
EP20192162.4A 2019-09-13 2020-08-21 Procédé de fabrication d'un câble étanche aux liquides, utilisation d'un connecteur de soudure correspondante et câble étanche aux liquides Active EP3879540B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019124741.1A DE102019124741B4 (de) 2019-09-13 2019-09-13 Verfahren zur herstellung eines flüssigkeitsdichten kabels, verwendung eines lötverbinders hierzu und flüssigkeitsdichtes kabel

Publications (3)

Publication Number Publication Date
EP3879540A1 true EP3879540A1 (fr) 2021-09-15
EP3879540B1 EP3879540B1 (fr) 2023-08-02
EP3879540C0 EP3879540C0 (fr) 2023-08-02

Family

ID=72193336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20192162.4A Active EP3879540B1 (fr) 2019-09-13 2020-08-21 Procédé de fabrication d'un câble étanche aux liquides, utilisation d'un connecteur de soudure correspondante et câble étanche aux liquides

Country Status (2)

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EP (1) EP3879540B1 (fr)
DE (1) DE102019124741B4 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1267832A (en) 1917-06-02 1918-05-28 Gen Electric Filled cable and fluid-stop.
DE893821C (de) 1950-09-09 1953-10-19 Gen Electric Ummanteltes mehradriges Kabel und Verfahren zur Herstellung desselben
US3451609A (en) 1967-08-24 1969-06-24 Us Air Force Heat shrinkable plastic soldering sleeve
JP2001057252A (ja) 1999-08-19 2001-02-27 Sumitomo Wiring Syst Ltd 防水スプライス構造および該防水スプライス構造の形成方法
JP2007057252A (ja) 2005-08-22 2007-03-08 Iijima Kenchiku Jimusho:Kk 構造物の剛性推定方法
JP2007287647A (ja) 2006-03-22 2007-11-01 Furukawa Electric Co Ltd:The 電線芯線の止水処理構造及び電線芯線の止水処理方法
WO2008099675A1 (fr) 2007-02-16 2008-08-21 Tyco Electronics Amp K.K. Procédé de fabrication d'un faisceau étanche à l'eau, agent étanche à l'eau pour un faisceau, et faisceau étanche à l'eau
JP2009152012A (ja) 2007-12-19 2009-07-09 Sumitomo Wiring Syst Ltd 電線の止水方法及び該止水方法で形成された止水部を有する電線
DE112008002857T5 (de) 2007-11-08 2011-02-24 Sumitomo Wiring Systems, Ltd. Wasserabdichtverfahren für einen Draht und Draht, welcher ein wasserdichtes Teil aufweist, welches durch das Wasserabdichtverfahren gebildet ist
DE112013006224T5 (de) 2012-12-26 2015-10-01 Yazaki Corporation Mit einem Crimp-Anschluss ausgestattete elektrische Aluminiumleitung und Fertigungsverfahren dafür
CN106328261A (zh) 2015-09-15 2017-01-11 桂林绿元科技有限公司 一种内填充防水线束及其制作方法

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1267832A (en) 1917-06-02 1918-05-28 Gen Electric Filled cable and fluid-stop.
DE893821C (de) 1950-09-09 1953-10-19 Gen Electric Ummanteltes mehradriges Kabel und Verfahren zur Herstellung desselben
US3451609A (en) 1967-08-24 1969-06-24 Us Air Force Heat shrinkable plastic soldering sleeve
JP2001057252A (ja) 1999-08-19 2001-02-27 Sumitomo Wiring Syst Ltd 防水スプライス構造および該防水スプライス構造の形成方法
JP2007057252A (ja) 2005-08-22 2007-03-08 Iijima Kenchiku Jimusho:Kk 構造物の剛性推定方法
JP2007287647A (ja) 2006-03-22 2007-11-01 Furukawa Electric Co Ltd:The 電線芯線の止水処理構造及び電線芯線の止水処理方法
WO2008099675A1 (fr) 2007-02-16 2008-08-21 Tyco Electronics Amp K.K. Procédé de fabrication d'un faisceau étanche à l'eau, agent étanche à l'eau pour un faisceau, et faisceau étanche à l'eau
DE112008002857T5 (de) 2007-11-08 2011-02-24 Sumitomo Wiring Systems, Ltd. Wasserabdichtverfahren für einen Draht und Draht, welcher ein wasserdichtes Teil aufweist, welches durch das Wasserabdichtverfahren gebildet ist
JP2009152012A (ja) 2007-12-19 2009-07-09 Sumitomo Wiring Syst Ltd 電線の止水方法及び該止水方法で形成された止水部を有する電線
DE112013006224T5 (de) 2012-12-26 2015-10-01 Yazaki Corporation Mit einem Crimp-Anschluss ausgestattete elektrische Aluminiumleitung und Fertigungsverfahren dafür
CN106328261A (zh) 2015-09-15 2017-01-11 桂林绿元科技有限公司 一种内填充防水线束及其制作方法

Also Published As

Publication number Publication date
DE102019124741A1 (de) 2021-03-18
EP3879540B1 (fr) 2023-08-02
DE102019124741B4 (de) 2021-05-12
EP3879540C0 (fr) 2023-08-02

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