EP3155152B1 - Stoff zur elektromagnetischen abschirmung - Google Patents

Stoff zur elektromagnetischen abschirmung Download PDF

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Publication number
EP3155152B1
EP3155152B1 EP15733840.1A EP15733840A EP3155152B1 EP 3155152 B1 EP3155152 B1 EP 3155152B1 EP 15733840 A EP15733840 A EP 15733840A EP 3155152 B1 EP3155152 B1 EP 3155152B1
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EP
European Patent Office
Prior art keywords
fabric
electromagnetic shielding
warp yarns
conductive
electromagnetic
Prior art date
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Active
Application number
EP15733840.1A
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English (en)
French (fr)
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EP3155152A1 (de
Inventor
Gilles Clement
Pierre Omerin
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Tresse Industrie
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Tresse Industrie
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Publication of EP3155152A1 publication Critical patent/EP3155152A1/de
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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D1/00—Woven fabrics designed to make specified articles
    • D03D1/0035—Protective fabrics
    • D03D1/0058—Electromagnetic radiation resistant
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/40—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads
    • D03D15/43—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the structure of the yarns or threads with differing diameters
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
    • D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
    • D03D15/533—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads antistatic; electrically conductive
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2101/00—Inorganic fibres
    • D10B2101/20—Metallic fibres
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/04—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons
    • D10B2321/042—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of halogenated hydrocarbons polymers of fluorinated hydrocarbons, e.g. polytetrafluoroethene [PTFE]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/04—Heat-responsive characteristics
    • D10B2401/041—Heat-responsive characteristics thermoplastic; thermosetting
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/16—Physical properties antistatic; conductive

Definitions

  • the present invention relates to a fabric for electromagnetic shielding.
  • these cables being crossed by an electric current, they emit an electromagnetic field which is disruptive for their environment. It is also appropriate that these cables are not disturbed by any electromagnetic fields. In other words, it is necessary to prevent a signal from escaping the cable and also to prevent a spurious signal from being added to the signal carried by the same cable.
  • the conductive cables are integrated in an aircraft, motor vehicle or other device and, consequently, may be brought into contact with mechanical devices of the apparatus in question. During operation, vibrations may occur which cause cycles of friction between the cables and the surrounding members to be observed; these vibrations can damage the cables.
  • the electric cables are protected by sheaths that provide electromagnetic shielding and mechanical protection.
  • electromagnetic shielding sheath we know, for example, by the document EP 1 348 247 , an electromagnetic shielding braid that provides both electromagnetic shielding - on the order of 50/60 dB at 30/40 MHz - and high quality mechanical protection.
  • sheaths There are also so-called self-resealing armor sheaths. Unlike braided sheaths, these sheaths consist of woven ribbons.
  • the warp yarns comprise conductive metal strands to provide the shielding function, while the weft yarns comprise thermoformable mono filamentary strands to provide the self-holding function of the tubular-shaped sheath.
  • an electromagnetic shielding fabric having an armor of weft and warp yarns and in which some weft yarns are conductive is known to EP 2233620 A2 .
  • an object of the invention is to provide a light self-resealing fabric having an electromagnetic shielding efficiency close to the values of a braided tubular metal sheath, 50-60dB at 30 / 40MHz.
  • the invention relates to an electromagnetic shielding fabric having a weave of intertwined weft yarns and warp yarns, characterized in that the conductive warp yarns comprise monofilament or multifilament yarns associated with metal strands and in that at least one conductor wire is inserted in a frame to create an equipotential bond perpendicular to the direction of the strings.
  • the fabric comprises a plurality of conductive chain son inserted in a chain in a pitch of between 1 and 8 in the crowds.
  • the fabric comprises chain conductor wires forming a protective face electromagnetic, chain son forming a mechanical protection face and chain son ensuring binding of chain conductor son forming the electromagnetic shielding face and chain son forming the mechanical protection face.
  • chain conductor son forming the electromagnetic protection face are woven in a plain weave and chain son forming a mechanical protection face are woven in a plain weave.
  • the invention relates to a sheath formed by the aforementioned fabric.
  • the sheath comprises a conductive strip of conductive warp threads inserted by weaving into the plain weave on the mechanical protection face so that the conductive strip is covered by the opposite face on the electromagnetic side of the sheath. and constitutes a looping of the electrical circuit of the electromagnetic protection face when the sheath is closed on itself.
  • the fabric 1 for electromagnetic shielding has an armor of weft son 2 and chain son 3 intertwined.
  • the warp yarns 3 comprise conductive strands associated with textile fibers.
  • the 3-conductor warp yarns may comprise monofilament yarns associated with metal strands.
  • the metal strands can be incorporated in monofilament son by wrapping, stranding or braiding.
  • the ratio of the diameters of monofilaments and metal strands in the warp yarns can be at least 2.5 mm.
  • the diameter of the monofilaments is of the order of 0.25 mm and the diameter of the metal strands is of the order of 0.15 mm.
  • the weft yarns 2 may be conductive yarns but, preferably, are nonconductive yarns essentially composed of thermoplastic monofilaments, for example PET; PET-FR; PBT; PMMA; PA4.6; PA6.6; PA11; PA12; PPS; PEEK; ECTFE; PVDF; ETFE FEP; PFA; PTFE so that the fabric incorporating these weft son 2 has a linear density contained.
  • thermoplastic monofilaments for example PET; PET-FR; PBT; PMMA; PA4.6; PA6.6; PA11; PA12; PPS; PEEK; ECTFE; PVDF; ETFE FEP; PFA; PTFE so that the fabric incorporating these weft son 2 has a linear density contained.
  • the figure 2 shows the manner in which the first step of manufacturing the fabric according to the invention is carried out.
  • a predetermined pitch P which can be, for example, 8 picks, according to the example of the figure 1 , to insert a chain wire 4 - which is therefore conductive - in the frame.
  • the loom has a lower weft insertion needle 6 and an upper weft insertion needle 7; these needles will thus allow to insert into the frame composed of non-conductive son, a chain son who is conductive.
  • a needle which has a profile allowing it to take according to the thread which is presented to it, the weft thread and the warp thread which is conductive.
  • the fabric according to the invention is provided with a conductive thread in its weft direction, which thus forms an equipotential bond.
  • the resulting fabric has an interweaving of conductive son, which is very favorable for the electromagnetic efficiency.
  • the fabric After weaving, the fabric undergoes a treatment phase essentially by heating known per se to give it its shape memory property, that is to say its ability to wind on itself.
  • the Figure 3 shows another embodiment of the invention in which the fabric has two faces which appear visually different so as to distinguish the functions of mechanical protection and electromagnetic protection.
  • the fabric is woven according to the double weaving method with a particular binding yarn.
  • the figure 3 schematically shows the weave of the fabric with the double weave. This particular method is combined with the conductive warp yarn 30 inserted in weft in the weaving of an electromagnetic shielding face.
  • the figure 3 shows a loose binding that is used in this example; the conductive son of the chain are grouped in a weave weave type to form the electromagnetic shielding face, monofilament or multifilament son of the chain 31 are grouped in a weave weave type to form the mechanical protection face.
  • the two armor are linked by son of chains 32 chosen monofilaments or multifilaments to form the binding.
  • the binding son 32 is visible on the mechanical protection side and invisible electromagnetic protection side.
  • the figure 3 shows an electromagnetic shielding measurement for a cladding composed, according to the prior art, of a fabric having (i) 8-stranded tinned copper strand of 0.10 mm and PET monofilaments of 0.25 mm and (ii) weft PET thermoplastic monofilaments 0.254 mm in diameter.
  • the figure 6 shows an electromagnetic shielding measurement made with the fabric shown in FIG. Figure 1 .
  • This fabric comprises (i) PET textile yarns and 0.10 mm 8-strand tinned copper strands and (ii) weft PET thermoplastic monofilaments and chain metal strands in a pitch of eight picks.
  • the measurements carried out within the framework of the aforementioned standard show an attenuation of the order of 42 dB at 30 MHz and 40 dB at a frequency of 40 MHz.
  • the Figure 7 shows an electromagnetic shielding measurement made with a variant of the fabric shown in FIG. Figure 1 .
  • This fabric comprises (i) PET textile yarns and 0.10 mm 8-stranded tinned copper strands and (ii) weft PET thermoplastic monofilaments and chain metal strands inserted on each pick. Measurements made in the framework of the aforementioned standard show attenuation of the order of 48dB at 30MHz and 45dB for a frequency of 40 MHz.
  • a metal coating on the fabric can be performed by electrochemical deposition according to known techniques.
  • a thickness in the range of 0.2 ⁇ m to 1.3 ⁇ m is deposited according to the desired level of shielding attenuation.
  • the Figure 8 shows an electromagnetic shielding measurement made with a variant of the fabric shown in FIG. Figure 1 , this one having received a nickel coating.
  • This fabric comprises (i) PET textile yarns and 0.10 mm 8-strand tinned copper strands, (ii) weft PET thermoplastic monofilaments and chain metal strands inserted in a pitch of eight picks and (iii) ) a metallized coating electrochemically deposited on a thickness of about 0.7 microns, knowing that the coating may have a thickness of 0.2 microns to 1.3 microns.
  • Measurements made within the framework of the aforementioned standard show attenuation of the order of 56 dB at 30 MHz and 55.5 dB at a frequency of 40 MHz.
  • the sheath which is formed by a band of fabric closed on itself comprises a conductor strip of conducting warp threads inserted by weaving into the plain weave on the mechanical protection face. so that the conductive strip is covered by the opposite side side electromagnetic protection side of the sheath and constitutes a looping of the electrical circuit of the electromagnetic protection face when the sheath is closed on itself.
  • the invention is not limited to the embodiments described for a fabric (Taffeta), for example, but it encompasses all embodiments such as Twill, Satin, Reps, Reps across ( fluted), Long Reps, Plaiting Armor (Panama) etc ...

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Woven Fabrics (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Claims (12)

  1. Stoff zur elektromagnetischen Abschirmung, aufweisend eine Bindung aus ineinander verschlungenen Schussfäden (2) und Kettfäden (3), dadurch gekennzeichnet, dass die Kettfäden (3) leitend sind und leitende textile Multifilament- oder Monofilamentfäden umfassen, die mit Metallfaserbündeln kombiniert sind und dadurch, dass mindestens ein leitender Kettfaden (4) in den Schuss integriert ist, um eine zur Richtung der Kettfäden (3) senkrechte Äquipotentialverbindung zu schaffen.
  2. Stoff zur elektromagnetischen Abschirmung nach Anspruch 1, dadurch gekennzeichnet, dass der Stoff mehrere gemäß einem Schritt P zwischen 1 und 8 inklusive in den Fächern in die Kette integrierte leitende Kettfäden (4) umfasst.
  3. Stoff zur elektromagnetischen Abschirmung nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass der Stoff leitende Kettfäden (30), welche eine elektromagnetische Schutzfläche bilden, Kettfäden (31), welche eine mechanische Schutzfläche bilden, und Kettfäden (32) umfasst, welche die Verbindung der leitenden Kettfäden (30), welche die elektromagnetische Schutzfläche bilden, und Kettfäden (31), welche die mechanische Schutzfläche bilden, sichern.
  4. Stoff nach Anspruch 3, dadurch gekennzeichnet, dass die leitenden Kettfäden (30), welche die elektromagnetische Schutzfläche bilden, gemäß einer Leinwandbindung gewebt sind, und die Kettfäden (31), welche eine mechanische Schutzfläche bilden, gemäß einer Leinwandbindung gewebt sind.
  5. Stoff zur elektromagnetischen Abschirmung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das Verhältnis der Durchmesser der Monofilamente und der Metallfaserbündel in den leitenden Kettfäden (3) mindestens 2,5 beträgt.
  6. Stoff zur elektromagnetischen Abschirmung nach Anspruch 5, dadurch gekennzeichnet, dass der Durchmesser der Monofilamente in der Größenordnung von 0,125 mm bis 0,40 mm ist und der Durchmesser der Metallfaserbündel in der Größenordnung von 0,05 mm bis 0,16 mm ist.
  7. Stoff zur elektromagnetischen Abschirmung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die in die Schussfäden (2) integrierten Monofilamente von einem oder mehreren Materialien der Gruppe gebildet sind, umfassend: PET; PET-FR; PBT; PMMA; PA4.6; PA6.6; PA11; PA12; PPS; PEEK; ECTFE; PVDF; ETFE FEP; PFA; PTFE.
  8. Stoff zur elektromagnetischen Abschirmung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Stoff eine Metallschicht einer Dicke zwischen 0,2 µm bis 1,3 µm empfängt.
  9. Stoff zur elektromagnetischen Abschirmung nach Anspruch 6, dadurch gekennzeichnet, dass die Metallschicht ein oder mehrere Metalle aus der Gruppe umfasst, die das Nickel und das Zink und das Kupfer und das Silber umfasst.
  10. Stoff zur elektromagnetischen Abschirmung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Kettfäden von Bündeln aus einem oder mehreren Materialien der Gruppe gebildet sind, umfassend: PET; PBT; PMMA; Polyethylen; Polyamide; Acryl; Carbon; PAN; Polypropylen; PPS; Polyimid; PEEK; ECTFE; PVDF; Fluorfasern; Glasfasern; Keramik- und Mineralfasern, Aramid- und Metaaramidfasern; bloßes oder mit Zinn, Nickel, Silber beschichtetes Kupfer; bloßes oder verzinntes Messing; Aluminium, Aluminiumlegierungen, bloßen Stahl, verzinkten Stahl, verzinnten verkupferten Stahl, vernickelten verkupferten Stahl, versilberten verkupferten Stahl, rostfreien Stahl, inconel®, Monel®, Nickel, Nickellegierungen, Kupfer-Nickel-Legierungen.
  11. Elektromagnetischer Abschirmmantel, umfassend ein Stoffband nach einem der Ansprüche 1 bis 10.
  12. Mantel nach Anspruch 11, dadurch gekennzeichnet, dass der Mantel ein leitendes Band leitender Kettfäden (3) umfasst, das in die Leinwandbindung auf der mechanischen Schutzfläche derart eingewebt ist, dass das leitende Band von der gegenüberliegenden Fläche, auf der Seite der elektromagnetischen Schutzfläche, von dem Mantel bedeckt ist und einen Verschluss des Stromkreises der elektromagnetischen Schutzfläche bildet, wenn der Mantel in sich selbst geschlossen ist.
EP15733840.1A 2014-06-16 2015-06-15 Stoff zur elektromagnetischen abschirmung Active EP3155152B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1455480A FR3022266B1 (fr) 2014-06-16 2014-06-16 Tissu pour blindage electromagnetique.
PCT/FR2015/051584 WO2015193602A1 (fr) 2014-06-16 2015-06-15 Tissu pour blindage électromagnétique

Publications (2)

Publication Number Publication Date
EP3155152A1 EP3155152A1 (de) 2017-04-19
EP3155152B1 true EP3155152B1 (de) 2018-07-18

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ID=51894117

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15733840.1A Active EP3155152B1 (de) 2014-06-16 2015-06-15 Stoff zur elektromagnetischen abschirmung

Country Status (10)

Country Link
US (1) US10392728B2 (de)
EP (1) EP3155152B1 (de)
KR (1) KR102539372B1 (de)
CA (1) CA2951360C (de)
ES (1) ES2691397T3 (de)
FR (1) FR3022266B1 (de)
MX (1) MX357189B (de)
PT (1) PT3155152T (de)
TR (1) TR201815274T4 (de)
WO (1) WO2015193602A1 (de)

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CN105824472A (zh) * 2016-03-18 2016-08-03 苏州椒图电子有限公司 一种矩阵电路及传感系统
CN108796774B (zh) * 2018-06-20 2020-11-06 保定三源纺织科技有限公司 一种伪装屏蔽布及其生产方法
RU2750215C1 (ru) * 2019-12-25 2021-06-24 Государственное образовательное учреждение высшего профессионального образования Кыргызско-Российский Славянский университет (КРСУ) Широкополосное электромагнитное поглощающее покрытие
CN111188116A (zh) * 2020-02-17 2020-05-22 上海市纺织科学研究院有限公司 一种聚醚醚酮纤维基自润滑织物的制备方法
WO2022234992A1 (ko) * 2021-05-04 2022-11-10 엘에스전선 주식회사 복합소재 셀프랩 차폐 튜브

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Also Published As

Publication number Publication date
WO2015193602A1 (fr) 2015-12-23
US10392728B2 (en) 2019-08-27
EP3155152A1 (de) 2017-04-19
ES2691397T3 (es) 2018-11-27
MX357189B (es) 2018-06-29
CA2951360A1 (fr) 2015-12-23
MX2016016715A (es) 2017-06-28
PT3155152T (pt) 2018-11-09
TR201815274T4 (tr) 2018-11-21
FR3022266B1 (fr) 2016-05-27
KR102539372B1 (ko) 2023-06-01
FR3022266A1 (fr) 2015-12-18
US20170321353A1 (en) 2017-11-09
KR20170021783A (ko) 2017-02-28
CA2951360C (fr) 2022-10-25

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