WO2011001953A1 - Dispositif de chauffage en cordon et dispositif de chauffage plan - Google Patents

Dispositif de chauffage en cordon et dispositif de chauffage plan Download PDF

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Publication number
WO2011001953A1
WO2011001953A1 PCT/JP2010/061007 JP2010061007W WO2011001953A1 WO 2011001953 A1 WO2011001953 A1 WO 2011001953A1 JP 2010061007 W JP2010061007 W JP 2010061007W WO 2011001953 A1 WO2011001953 A1 WO 2011001953A1
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WIPO (PCT)
Prior art keywords
heater
cord
heat
wire
flame
Prior art date
Application number
PCT/JP2010/061007
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English (en)
Japanese (ja)
Inventor
基行 大場
雅嗣 斎藤
康浩 長谷
典男 池ヶ谷
大介 漆畑
Original Assignee
株式会社クラベ
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Application filed by 株式会社クラベ filed Critical 株式会社クラベ
Priority to JP2011520920A priority Critical patent/JP5916385B2/ja
Publication of WO2011001953A1 publication Critical patent/WO2011001953A1/fr

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/56—Heating or ventilating devices
    • B60N2/5678—Heating or ventilating devices characterised by electrical systems
    • B60N2/5685—Resistance
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/40—Heating elements having the shape of rods or tubes
    • H05B3/54—Heating elements having the shape of rods or tubes flexible
    • H05B3/56—Heating cables
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/017—Manufacturing methods or apparatus for heaters
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/026—Heaters specially adapted for floor heating
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/029—Heaters specially adapted for seat warmers

Definitions

  • the present invention relates to a cord-like heater that can be suitably used for an electric blanket, an electric carpet, a car seat heater, and the like, and a sheet-like heater using the cord-like heater, and more particularly, to a thing that can cope with an application that requires flame retardancy. .
  • Cord heaters used for electric blankets, electric carpets, car seat heaters, etc. are generally known to have a configuration in which a heater wire is spirally wound around a core wire and an outer cover is covered with an insulating layer from above. ing.
  • the heater wire is made of a copper wire, a nickel chrome alloy wire or the like that is aligned or twisted. Further, a heat-sealed portion is formed on the outer periphery of the heating wire, and the heat-bonded portion is adhered to a base material such as a nonwoven fabric or an aluminum foil (for example, Patent Document 1, Patent Document 2, Patent Document). 3 etc.).
  • Patent Document 4 has been filed by the applicant.
  • Polyethylene resin is mainly used as the heat fusion part of the cord heater.
  • this polyethylene resin is a flammable material, in the unlikely event that abnormal heating occurs due to disconnection of the heating wire, or there is ignition from the outside, the heat fusion part may burn There is.
  • combustion is prevented by using a flame retardant material on the side of the substrate or covering the outer periphery of the heating wire with a flame retardant insulator layer, but for more certainty, It is also necessary to improve flame retardancy on the side of the heat-sealed portion of the cord heater.
  • Patent Documents 2 and 3 it is described that a flame retardant that does not generate halogen is blended in a polyethylene resin and used for a cord-like heater, but this material is used only for insulation coating, No mention is made of the flame retardancy of the heat-sealed part.
  • the heat-fusible resin material that is normally used is easily combustible, even with such cord-like heaters according to Patent Documents 2 and 3, even if the insulation coating is flame-retardant, There is a risk that the flame propagates on the surface and the combustion part expands.
  • the present invention has been made in order to solve such problems of the prior art, and an object of the present invention is to provide a cord-shaped heater that can be used for applications that require flame retardancy, and a surface shape using the same. It is to provide a heater.
  • a cord-like heater according to claim 1 of the present invention is a cord-like heater having a heating wire and a heat fusion part formed on the outer periphery of the heating wire,
  • the conductor wire is wound around the core wire and the outer periphery thereof is covered with an insulating coating, or the conductor wire covered with the insulating coating is aligned or twisted.
  • the landing portion is made of a flame retardant polymer composition, and the cord-like heater has flame retardant properties that pass the UL1581 horizontal combustion test.
  • a cord-like heater according to claim 2 is the cord-like heater according to claim 1, wherein the flame-retardant polymer composition comprises an olefin resin and a flame retardant.
  • the cord-like heater according to claim 3 is the cord-like heater according to claim 2, wherein the flame-retardant polymer composition is measured according to JIS-K7210 method A at a temperature of 200 ° C. and a load of 2.16 kg. a melt flow rate of the object is characterized in that it is 5.0 cm 3/10 minutes or more.
  • a corded heater according to claim 4 is the corded heater according to claim 2 or 3, wherein the olefin resin is an ethylene-unsaturated ester copolymer.
  • a cord-like heater according to claim 5 is the cord-like heater according to any one of claims 1 to 4, wherein the heating wire is formed by aligning or twisting conductor wires covered with an insulating film, It is characterized by being wound on a core wire.
  • a sheet heater according to claim 6 is characterized in that the cord heater according to any one of claims 1 to 5 is disposed on a base material.
  • a sheet heater according to claim 7 is the sheet heater according to claim 6, wherein the base material is FMVSS No. It consists of what has the flame retardance which passes the combustion test of 302 automotive inner-layer material.
  • the sheet heater according to claim 8 is the sheet heater according to claim 7, characterized in that the substrate is made of a nonwoven fabric.
  • the sheet heater according to claim 9 is the sheet heater according to claim 6, wherein the non-woven fabric is composed of a heat-fusible fiber and a flame-retardant fiber that does not contribute to the heat-sealing.
  • the sheet heater according to claim 10 is the sheet heater according to claim 9, wherein the non-woven fabric is mixed with 70% or more of the flame-retardant fiber and 5% or more of the heat-fusible fiber. It is characterized by being mixed.
  • the sheet heater according to claim 11 is the sheet heater according to any one of claims 8 to 10, wherein the heat fusion part of the cord heater surrounds the fibers constituting the nonwoven fabric. The cord heater and the base material are adhered to each other.
  • the sheet heater according to claim 12 is the sheet heater according to claim 9 or 10, wherein the heat-fusible fiber has a core-sheath structure and surrounds the core part.
  • the sheath part and the heat fusion part of the cord heater are fused and integrated with each other.
  • a cord-like heater having a heating wire and a heat fusion part formed on the outer periphery of the heating wire, wherein the heating wire has a conductor wire on the core wire. It is wound and the outer periphery is coated with an insulating coating, or a conductor wire coated with an insulating coating is aligned or twisted, and the cord heater is used in the UL 1581 horizontal combustion test. It has the flame retardance to pass.
  • a planar heater according to a fourteenth aspect is characterized in that the cord-shaped heater according to the thirteenth aspect is disposed on a base material.
  • the heat fusion part is made of a flame retardant polymer composition
  • the cord-like heater passes the UL1581 horizontal combustion test. Since it has flame retardancy, it can be used for applications that require flame retardancy.
  • the flame retardant polymer composition is composed of an olefin resin and a flame retardant, the above effect can be further ensured.
  • the flame flow rate of the flame retardant polymer composition measured by the method A of JIS-K7210 at a temperature of 200 ° C. and a load of 2.16 kg is 5.
  • the said effect can be made more reliable.
  • the cord-like heater according to claim 4 since the olefin-based resin is an ethylene-unsaturated ester copolymer, the above effect can be further ensured.
  • the heating wire is formed by arranging or twisting conductor wires covered with an insulating film and wound on the core wire. The effects as described above can be obtained.
  • the planar heater according to claim 6 since the cord-like heater according to any one of claims 1 to 5 is disposed on the base material, it is used for an application that requires flame retardancy. Can do.
  • the base material has FMVSS No. Since it consists of what has the flame retardance which passes the combustion test of 302 automotive inner-layer material, the said effect can be made more reliable.
  • the substrate is made of a nonwoven fabric, and the above-described effects can be achieved even in such a configuration. Further, according to the planar heater according to the ninth aspect, since the nonwoven fabric is composed of the heat-fusible fiber and the flame-retardant fiber that does not contribute to the heat-sealing, the above effect can be further enhanced.
  • the nonwoven fabric is mixed with 70% or more of the flame-retardant fiber and 5% or more of the heat-fusible fiber. It can be made more reliable.
  • the cord-shaped heater and the base material are bonded together by the heat-sealed portion of the cord-shaped heater surrounding the fibers constituting the nonwoven fabric. Since it is comprised, the said effect can be made more reliable.
  • the heat-fusible fiber has a core-sheath structure and surrounds the core portion, and the heat-sealed portion of the cord-shaped heater and the sheath portion.
  • cord-like heater according to claim 13 since it has flame retardancy that passes the UL1581 horizontal combustion test, it can be used for applications that require flame retardancy. Further, according to the planar heater according to claim 14, since the cord-like heater according to claim 13 is disposed on the base material, it can be used for an application requiring flame retardancy.
  • FIG. 5 is a diagram illustrating the embodiment 1-1 according to the present invention and is a diagram illustrating a configuration of a hot press type heater manufacturing apparatus.
  • FIG. 5 is a diagram showing the embodiment 1-1 according to the present invention, and is a partial perspective view showing a state in which cord-like heaters are arranged in a predetermined pattern shape.
  • FIG. 1-1 by this invention and is a top view which shows the structure of a planar heater.
  • FIG. 5 is a diagram showing the embodiment 1-1 according to the present invention, and is a perspective view showing a part of the state in which the planar heater is embedded in the vehicle seat. It is a figure which shows Embodiment 1-2 by this invention, and is a partially notched side view which shows the structure of a cord-shaped heater. It is a figure which shows Embodiment 1-3 by this invention, and is a partially notched side view which shows the structure of a cord-shaped heater. It is a figure which shows Embodiment 2 by this invention, and is a partially notched side view which shows the structure of a cord-shaped heater.
  • Embodiment 3-1 it is a figure which shows Embodiment 3-1 by this invention, and is a partially notched side view which shows the structure of a cord-shaped heater. It is a figure which shows Embodiment 3-2 by this invention, and is a partially notched side view which shows the structure of a cord-shaped heater. It is a figure which shows Embodiment 4 by this invention, and is a partially notched side view which shows the structure of a cord-shaped heater.
  • the adhesion state of the base material and the cord-shaped heater is enlarged 45 times.
  • Embodiment 1 of the present invention (Embodiment 1-1 to Embodiment 1-3) will be described with reference to FIG. 1 to FIG. 7. These embodiments use the present invention as a planar heater. The example which assumes application to the seat heater for vehicles is shown.
  • Embodiment 1-1 will be described with reference to FIGS.
  • the configuration of the cord-like heater 10 in this embodiment will be described.
  • the cord-like heater 10 in the present embodiment is configured as shown in FIG. First, there is a heater core 3 made of an aromatic polyamide fiber bundle having an outer diameter of about 0.2 mm, and a tin-plated hard tin-containing copper alloy wire (TH-SNCC) having an element wire diameter of 0.08 mm is provided on the outer periphery of the heater core 3. -3), which is formed by aligning six conductor wires 5a (only three of them are shown in FIG. 1) is wound spirally at a pitch of about 0.7 mm. .
  • TH-SNCC tin-plated hard tin-containing copper alloy wire
  • a tetrafluoroethylene-hexafluoropropylene copolymer (FEP) as an insulator layer 7 is extruded with a thickness of about 0.15 mm.
  • the heating wire 1 is formed by covering. Further, the outer periphery of the heating wire 1 is further extruded and coated with a polyethylene resin containing a flame retardant as the heat-sealing portion 9 to a thickness of 0.2 mm.
  • the cord-shaped heater 10 has such a configuration, and its finished outer diameter is 1.1 mm.
  • the heater core 3 is effective when considering flexibility and tensile strength.
  • this cord-shaped heater 1 has a flame retardance which passes the UL1581 horizontal combustion test (2008, 4th edition) alone. “UL” is a safety standard created by Underwriters Laboratories Inc., USA.
  • the base material 11 in this example is a non-woven fabric in which 10% heat-fusible fiber having a core-sheath structure having low melting point polyester as a sheath component and 90% flame-retardant fiber made of flame-retardant polyester fiber are mixed. (A basis weight is 100 g / m 2 and a thickness is 0.6 mm). Such a base material 11 is formed into a desired shape by a known method such as die cutting.
  • FIG. 2 is a diagram showing a configuration of a hot press type heater manufacturing apparatus 13 for bonding and fixing the cord-like heater 10 on the base material 11.
  • the anchoring mechanism 17 includes a pin 19, and the pin 19 is inserted into a hole 21 drilled in the hot press jig 15 from below.
  • a retaining member 23 is attached to the upper portion of the pin 19 so as to be movable in the axial direction, and is always urged upward by a coil spring 25.
  • the cord-like heaters 10 are hooked on the locking members 23 of the plurality of locking mechanisms 17 and arranged in a predetermined pattern shape.
  • a press hot plate 27 is disposed above the plurality of locking mechanisms 17 so as to be movable up and down. That is, the cord-shaped heater 10 is arranged in a predetermined pattern shape while being hooked on the retaining members 23 of the plurality of retaining mechanisms 17, and the base material 11 is placed thereon. In this state, the press hot plate 27 is lowered to heat and press the cord-like heater 10 and the base material 11 at, for example, 230 ° C./5 seconds. As a result, the heat fusion part 9 on the cord-like heater 10 side and the heat-fusible fiber on the substrate 11 side are fused, and as a result, the cord-like heater 10 and the substrate 11 are bonded and fixed. It will be. It should be noted that the retaining members 23 of the plurality of retaining mechanisms 17 move downward against the urging force of the coil spring 25 during heating and pressurization due to the lowering of the press hot plate 27.
  • An adhesive layer may be formed or a double-sided tape may be attached to the surface of the substrate 11 where the cord heater 10 is not disposed. This is for fixing the planar heater 31 to the seat when it is attached to the seat.
  • a sheet heater 31 of a vehicle seat heater as shown in FIG. 4 can be obtained.
  • a cord 40 is connected to both ends of the cord heater 10 in the planar heater 31 and to the temperature control device 39, and the cord 40 is connected to the cord heater 10, the temperature control device 39, and the connector 35. Is connected. And it connects to the electric system of the vehicle which is not illustrated via this connector 35.
  • planar heater 31 which comprises the said structure is embedded and arrange
  • Embodiment 1-2 Next, Embodiment 1-2 will be described with reference to FIG. In the case of the embodiment 1-2, as shown in FIG. 6, a plurality of conductor strands 5a covered with an insulating coating 5b are twisted. Other configurations are the same as those of the embodiment 1-1, and the same parts are denoted by the same reference numerals and description thereof is omitted.
  • Embodiment 1-3 Next, Embodiment 1-3 will be described with reference to FIG. In the case of Embodiment 1-3, as shown in FIG. 7, a plurality of conductor strands 5a covered with an insulating coating 5b are aligned. Other configurations are the same as those of the embodiment 1-1, and the same parts are denoted by the same reference numerals and description thereof is omitted.
  • FIG. 8 is a schematic diagram.
  • the heating wire 1 is formed by aligning and spirally winding at a pitch of 1 mm.
  • the conductor wire 5a is covered with an insulating film 5b made of polyurethane with a thickness of about 0.005 mm.
  • a polyethylene resin containing a flame retardant as the heat fusion part 9 is extruded and coated with a thickness of 0.25 mm.
  • the cord-like heater 10 has such a configuration, and its finished outer diameter is 0.9 mm.
  • this cord-shaped heater 1 has a flame retardance which passes the UL1581 horizontal combustion test (2008, 4th edition) alone.
  • the configuration and manufacturing method of the substrate 11 and the like are the same as those in the first embodiment.
  • Embodiment 3 (Embodiment 3-1, Embodiment 3-2) of the present invention will be described with reference to FIG. 9 and FIG. Embodiment 3-1
  • the cord-like heater 10 in the present embodiment is configured as shown in FIG. FIG. 9 is a schematic diagram.
  • the heater core 3 made of an aromatic polyamide fiber bundle having an outer diameter of about 0.2 mm
  • seven conductor strands 5a made of a tin-copper alloy wire having a strand diameter of 0.08 mm (in FIG. Only five wires are shown.)
  • the heating wire 1 is formed by aligning and spirally winding at a pitch of 1 mm.
  • the conductor wires 5a Three of the seven conductor wires 5a are covered with an insulating film 5b made of polyurethane with a thickness of about 0.005 mm. The remaining four conductor wires 5a are not covered with an insulating film. The conductor strands 5a are aligned so that those covered with the insulating coating 5b and those not covered are alternately arranged.
  • a polyethylene resin containing a flame retardant as the heat fusion part 9 is extruded and coated with a thickness of 0.25 mm.
  • the cord-like heater 10 has such a configuration, and its finished outer diameter is 0.9 mm. Moreover, this cord-shaped heater 1 has a flame retardance which passes the UL1581 horizontal combustion test (2008, 4th edition) alone.
  • the configuration and manufacturing method of the substrate 11 and the like are the same as those in the first embodiment.
  • FIG. 10 is a schematic diagram.
  • the heating wire 1 is formed by aligning and spirally winding at a pitch of 1 mm.
  • the seven conductor wires 5a are covered with an insulating coating 5b made of polyurethane with a thickness of about 0.005 mm. The remaining one conductor wire 5a is not covered with an insulating film. The conductor strands 5a are aligned so that the uncoated ones are disposed among those coated with the insulating coating 5b.
  • a polyethylene resin containing a flame retardant as the heat fusion part 9 is extruded and coated with a thickness of 0.25 mm.
  • the cord-like heater 10 has such a configuration, and its finished outer diameter is 0.9 mm. Moreover, this cord-shaped heater 1 has a flame retardance which passes the UL1581 horizontal combustion test (2008, 4th edition) alone.
  • the configuration and manufacturing method of the substrate 11 and the like are the same as those in the first embodiment.
  • the cord-like heater 10 in the present embodiment is configured as shown in FIG. First, there is a heater core 3 made of an aromatic polyamide fiber bundle having an outer diameter of about 0.2 mm, and a tin-plated hard tin-containing copper alloy wire (TH-SNCC) having an element wire diameter of 0.08 mm is provided on the outer periphery of the heater core 3. -3), which is composed of six conductor wires 5a (only three of them are shown in FIG. 11) arranged in a spiral at a pitch of about 0.7 mm. Yes.
  • TH-SNCC tin-plated hard tin-containing copper alloy wire
  • a tetrafluoroethylene-hexafluoropropylene copolymer (FEP) as an insulator layer 7 is extruded with a thickness of about 0.15 mm.
  • the heating wire 1 is formed by covering. Further, the outer periphery of the heating wire 1 is further covered with a polyethylene resin not blended with a flame retardant as the heat fusion part 9 with a thickness of 0.1 mm and intermittently at intervals of 5 mm.
  • the cord-like heater 10 has such a configuration, and its finished outer diameter is 0.9 mm.
  • the cord-like heater 1 alone has flame retardancy that passes the UL1581 horizontal combustion test (2008, 4th edition).
  • the configuration and manufacturing method of the substrate 11 and the like are the same as those in the first embodiment.
  • FIG. 12 shows an electron micrograph of the vicinity of the heat fusion part 9 of the cord-like heater 10 according to the first embodiment. Also from this photograph, it can be confirmed that the heat fusion part 9 of the cord heater surrounds the fibers constituting the nonwoven fabric (base material 11).
  • the base material 11 is a non-woven fabric and contains heat-fusible fibers
  • the heat-fusible fibers have a core-sheath structure and the sheath portion has a low melting point, the state surrounding the core portion
  • the sheath part and the heat fusion part 9 of the cord heater are fused and integrated with each other.
  • the cord-like heater 10 and the base material 11 are more firmly bonded.
  • the present invention is not limited to Embodiments 1 to 4 described above.
  • various conventionally known cord-like heaters can be used.
  • the configuration of the heating wire 1 for example, as in the above-described Embodiment 1-1, a plurality of conductor wires 5a are twisted or aligned, and these are wound on the core wire 3 and insulated on the outer periphery thereof.
  • the one provided with the coating 7 see FIG. 1), the one obtained by twisting a plurality of conductor wires 5a covered with the insulating coating 5b as in the above-described Embodiment 1-2 (see FIG.
  • a plurality of conductor wires 5a covered with the insulating coating 5b are aligned (see FIG. 7), and the conductor element covered with the insulating coating 5b as in Embodiment 2 above.
  • a plurality of wires 5a are twisted or aligned, and the wires 5a are wound around the core wire 3 (see FIG. 8).
  • FIG. 9 only in the form (FIG. 9) where the conductor strands 5a covered with the insulating coating 5b and the conductor strands 5a not covered with the insulating coating 5b are alternately arranged. For example, as shown in FIG.
  • the core wire 3 for example, inorganic fibers such as glass fibers, polyester fibers such as polyethylene terephthalate, monofilaments of organic fibers such as aliphatic polyamide fibers, aromatic polyamide fibers, wholly aromatic polyester fibers, multifilaments, spans, or Examples thereof include fibers having a structure in which the fiber material or an organic polymer material constituting the fiber material is used as a core and a thermoplastic organic polymer material is coated on the periphery thereof. Further, if the core wire 3 has heat shrinkability and heat meltability, the core wire is melted and cut by contraction due to abnormal heating when the conductor wire 5a is disconnected, and the core wire 3 is wound.
  • inorganic fibers such as glass fibers, polyester fibers such as polyethylene terephthalate, monofilaments of organic fibers such as aliphatic polyamide fibers, aromatic polyamide fibers, wholly aromatic polyester fibers, multifilaments, spans, or Examples thereof include fibers having a structure in which the fiber material or an
  • the conductor strand 5a follows the operation of the core wire 3 and separates the ends of the disconnected conductor strand 5a. For this reason, the ends of the disconnected conductor wires do not come into contact with or leave from each other, and contact with a slight contact area such as point contact can be prevented, and abnormal heat generation can be prevented. Moreover, if the conductor strand 5a is the structure insulated by the insulating film 5b, the core wire 3 does not need to stick to an insulating material. For example, a stainless steel wire or a titanium alloy wire can be used. However, considering that the conductor wire 5a is disconnected, the core wire 3 is preferably an insulating material.
  • the conductor wire 5a a conventionally known wire can be used.
  • a copper alloy wire containing silver in which a copper solid solution and a copper silver eutectic are formed into a fiber shape can be used.
  • Various cross-sectional shapes can be used, and the cross-sectional shape is not limited to a generally used cross-sectional shape, and a so-called rectangular wire may be used.
  • the conductor wire 5 a is wound around the core wire 3, among them, it is preferable that the amount of spring back when the heating wire 1 is wound is small, and the restoration rate is 200% or less. .
  • a silver alloy copper alloy wire in which a copper solid solution and a copper silver eutectic are formed into a fiber shape is excellent in tensile strength and bending strength, but easily springs back when a heating wire is wound. For this reason, when the wire is wound around the core wire 3, it is not preferable because the conductor wire 5 a is easily lifted or the conductor wire 5 a is easily broken due to excessive winding tension, and twists are likely to occur after processing. In particular, when the conductor wire 5a is covered with the insulating coating 5b, the restoring force by the insulating coating 5b is also applied. Therefore, it is important to select a conductor wire 5a with a low restoration rate and cover the restoring force of the insulating coating 5b.
  • the measurement of the restoration rate defined in the present invention will be described in detail.
  • a conventionally known resin material or the like can be used as the insulating coating 5b covered with the conductor wire 5a.
  • resin material or the like can be used as the insulating coating 5b covered with the conductor wire 5a.
  • polyurethane resin, polyamide resin, polyimide resin, polyamideimide resin, polyesterimide resin, nylon resin, polyester Nylon resin, polyethylene resin, polyester resin, vinyl chloride resin, fluororesin, silicone resin and the like can be mentioned.
  • the conductor wires 5a can be fused together, so that the heating wire 1 does not vary during terminal processing such as connection with the connection terminal. It is preferable because it can improve the workability.
  • the material of the insulating coating 5b has good thermal decomposability. It is preferable that Further, fluororesins such as FEP, ETFE, and PFA are preferable because they are nonflammable and chemically stable. In particular, ETFE is preferable because it is excellent in mechanical strength and spark resistance.
  • the conductor strands 5a are aligned or twisted and wound on the core material 3, they are preferably aligned rather than twisted. This is because the diameter of the heating core 4 is reduced and the surface is also smoothed. In addition to the alignment or twisting, it is also conceivable to braid the conductor wire 5a on the core material 3.
  • the insulator layer 7 When forming the insulator layer 7, it may be performed by extrusion molding or the like, or may be covered with the insulator layer 7 previously formed into a tube shape, and the formation method is not particularly limited.
  • the material constituting the insulator layer 7 may be appropriately designed depending on the usage form or usage environment of the cord heater, for example, polyethylene resin, polyester resin, polyurethane resin, polyamide resin, vinyl chloride resin, Various materials such as fluororesin, synthetic rubber, fluororubber, ethylene-based thermoplastic elastomer, urethane-based thermoplastic elastomer can be used. Further, a protective coating may be further formed on the outer periphery of the insulator layer 7.
  • the cord-like heater of the present invention can be obtained.
  • the heat fusion part is formed in a dot pattern, for example, formed in a linear shape or a spiral line shape along the length direction of the cord-like heater, in addition to being formed on the entire outer periphery of the heating wire.
  • a form such as intermittent formation as in form 3 is conceivable.
  • the volume of the heat fusion part is sufficiently small, even if the heat fusion part is a combustible material, the burned material will disappear immediately and the fire will extinguish, and drip (combustion dripping) will also occur. Disappear. Therefore, it is preferable that the volume of the heat-sealed portion be the minimum that can maintain the adhesiveness with the base material. However, in the case of such an aspect, it is preferable that the insulator layer 7 or the insulating coating 5b is made of a flame retardant material.
  • a polymer composition having flame retardancy is preferably used as a material constituting the heat fusion part 9.
  • the polymer composition having flame retardancy is one having an oxygen index of 21 or more in a JIS-K7201 (1999) flammability test. Those having an oxygen index of 26 or more are particularly preferred.
  • Specific materials include, for example, olefin resin, polyester resin, polyamide resin, vinyl chloride resin, polyurethane resin, modified noryl resin (polyphenylene oxide resin), nylon resin, polystyrene resin, polyolefin thermoplastic elastomer, polyester.
  • Thermoplastic polymer materials such as thermoplastic thermoplastic elastomers and polyurethane thermoplastic elastomers, and those obtained by appropriately blending a flame retardant with these thermoplastic polymer materials.
  • thermoplastic polymer materials an olefin resin excellent in adhesiveness with a substrate is preferable.
  • the olefin resin include high density polyethylene, low density polyethylene, ultra low density polyethylene, linear low density polyethylene, polypropylene, polybutene, ethylene- ⁇ -olefin copolymer, ethylene-unsaturated ester copolymer, and the like. Is mentioned.
  • an ethylene-unsaturated ester copolymer is particularly preferable.
  • the combustion heat is smaller than that of a resin having a molecular structure of only carbon and hydrogen, such as polyethylene. This will lead to suppression of combustion.
  • the adhesiveness to the base material is also good, and since there is little decrease in the adhesiveness when an inorganic powder or the like is blended, it is suitable for blending various flame retardants.
  • Examples of the ethylene-unsaturated ester copolymer include an ethylene-vinyl acetate copolymer, an ethylene-methyl (meth) acrylate copolymer, an ethylene- (meth) ethyl acrylate copolymer, and an ethylene- (meth).
  • a butyl acrylate copolymer etc. are mentioned, These may be individual or the mixture of 2 or more types.
  • (meth) acrylic acid” represents both acrylic acid and methacrylic acid. Any of these materials may be selected, but a material that melts at a temperature lower than the decomposition start temperature or lower than the melting point of the material constituting the insulating coating 5b or the insulator coating 7 is better.
  • polyester-type thermoplastic elastomer is mentioned as a material excellent in adhesiveness with a base material.
  • Polyester-based thermoplastic elastomers include polyester-polyester type and polyester-polyether type, and polyester-polyether type is preferred because it has higher adhesiveness.
  • melt flow rate of the material constituting the heat-sealed portion 9 is 5.0 cm 3/10 minutes or more Preferably there is. This melt flow rate is measured at a temperature of 200 ° C. and a load of 2.16 kg according to the method A described in JIS-K7210 (1999).
  • the flame retardant examples include metal hydrates such as magnesium hydroxide and aluminum hydroxide, antimony oxide, melamine compound, phosphorus compound, chlorine flame retardant, bromine flame retardant and the like. These flame retardants may be appropriately subjected to surface treatment by a known method. In particular, a surface treatment that lowers the viscosity at the time of melting of the polymer composition constituting the heat fusion layer is preferable. Moreover, there is no limitation in particular in the method of forming the contact bonding layer 9, For example, you may form by well-known extrusion molding and may form by application
  • the base material and the cord-like heater will be peeled off during use, which will cause unexpected bending in the cord-like heater.
  • the possibility of disconnection is increased. If the conductor wire is disconnected, it not only serves as a heater but also may cause sparking due to chattering.
  • a good electric conductor such as a metal foil can be wound around the outer periphery of the conductor wire 5a in a part in the length direction.
  • a good electric conductor such as a metal foil can be wound around the outer periphery of the core material 3 (the inner surface of the conductor wire 5a) in a part of the length direction.
  • the base material 11 in addition to the nonwoven fabric shown in the above embodiment, for example, woven fabric, paper, aluminum foil, mica plate, resin sheet, foamed resin sheet, rubber sheet, foamed rubber sheet, stretched porous body, etc.
  • FMVSS No. Those having flame retardancy that pass the combustion test of 302 automotive inner layer material are preferred.
  • FMVSS means Federal Motor Vehicle Safety Standard, that is, the Federal Motor Vehicle Safety Standard.
  • a combustion test for automobile interior materials is defined.
  • non-woven fabrics are particularly preferable for use in car seat heaters because they have a good texture and are flexible.
  • the heat-fusible fiber constituting the non-woven fabric a fiber having a core-sheath structure having a low melting point polyester as a sheath component is used.
  • a fiber having a core-sheath structure having a low melting point polypropylene as a sheath component or a fiber having a core-sheath structure having polyethylene as a sheath component is conceivable.
  • the sheath portion of the heat-fusible fiber and the heat-fusible portion 9 are fused and integrated with each other while surrounding the core portion of the heat-fusible fiber.
  • the adhesion between the cord-like heater 1 and the nonwoven fabric becomes very strong.
  • flame retardant fiber use of various flame retardant fibers other than said flame retardant polyester is considered, for example.
  • the flame-retardant fiber refers to a fiber that passes JIS-L1091 (1999). By using such a flame retardant fiber, the base material is imparted with excellent flame retardancy.
  • the mixing ratio of the heat-fusible fiber is preferably 5% or more, and preferably 20% or less.
  • the mixing ratio of the heat-fusible fiber is less than 5%, sufficient adhesion cannot be obtained.
  • the mixing ratio of the heat-fusible fiber exceeds 20%, the nonwoven fabric becomes hard and not only the seated person may complain of an uncomfortable feeling, but also the adhesiveness with the cord-like heater decreases. .
  • the mixing ratio of the flame retardant fiber is 70% or more, preferably 70% or more and 95% or less. When the mixing ratio of the flame retardant fiber is less than 70%, sufficient flame retardancy cannot be obtained.
  • the mixing ratio of the flame-retardant fibers exceeds 95%, the mixing ratio of the heat-fusible fibers is relatively insufficient, and sufficient adhesiveness cannot be obtained.
  • the heat-fusible fiber is not mixed, for example, the above-mentioned material of the heat-sealing part and the material of the fiber constituting the base material are made of the same system, so that it is necessary and sufficient. Since adhesiveness may be obtained, it is fully possible that the heat-fusible fiber is not mixed.
  • the size and thickness of the nonwoven fabric are appropriately changed depending on the intended use, but the thickness (value measured during drying) is preferably about 0.6 mm to 1.4 mm, for example. . If a nonwoven fabric having such a thickness is used, when the cord heater and the nonwoven fabric are bonded and fixed by heating and pressing, the nonwoven fabric has a portion of 30% or more, preferably 50% or more of the outer circumference of the cord heater. It is because it will adhere
  • the surface on which the cord-like heater is disposed is the surface on which the cord-shaped heater is not disposed (hereinafter referred to as non-surface). It is preferable that the air gap is larger than the arrangement surface.
  • the state with many voids is, for example, a fabric such as a woven fabric or a non-woven fabric, a basis weight, that is, a state where the fiber weight per unit volume is small, and a porous body such as a foamed resin sheet or a foamed rubber sheet. Indicates a large state.
  • the base material according to the present invention include, for example, a woven fabric or a nonwoven fabric that is calendered with different strength on only one side or both sides by adjusting temperature and pressure, and a nonwoven fabric that is needle punched from only one side.
  • gap of a base material is especially continuous. This is because the anchor effect is increased and the adhesive strength is improved by the molten heat-sealing layer penetrating into the continuous voids.
  • a fabric body such as a woven fabric or a nonwoven fabric which is an aggregate of fibers, a foamed resin sheet or a foamed rubber sheet having continuous pores, and the like can be considered.
  • the non-arranged surface may have no gap.
  • the cord-like heater 10 when the cord-like heater 10 is disposed on the base material 11, the cord-like heater 10 may be fixed to the base material 11 in another manner instead of being bonded and fixed by fusion by heating and pressurization.
  • Various modes such as a mode in which the substrate 10 is sandwiched and fixed are considered.
  • the adhesive layer for fixing the planar heater 31 to the seat is composed only of an adhesive on the release sheet or the like from the viewpoint of the stretchability of the base material 11 and the maintenance of a good texture. It is preferable to form an adhesive layer by forming an adhesive layer and transferring the adhesive layer from the release sheet to the surface of the substrate 11.
  • this adhesive layer is preferably flame retardant, and FMVSS No. Those having flame retardancy that pass the combustion test of 302 automotive interior materials are preferred.
  • a polymeric acrylic pressure sensitive adhesive can be used.
  • the adhesive layer may be formed on the surface on which the substrate is disposed, or may be formed on the non-arranged surface.
  • Examples 1 to 5 Comparative Example 1
  • the materials of the heat-sealed portion of the cord heater were changed as shown in Tables 1 and 2 to obtain Examples 1 to 5 and Comparative Example 1 (blending amount) Is expressed in parts by weight).
  • Adhesiveness measured the force when fixing a base material and pulling up a cord-like heater upward and peeling.
  • the cord heater is energized and the power density of 6 w / m 2 is supplied, the adhesive property is fixed when the substrate is fixed and the cord heater is pulled up and peeled off in the same manner as the adhesive property. The force of was measured.
  • the flame retardancy was tested by the UL1581 horizontal combustion test (2008, 4th edition) for the cord-shaped heater before being placed on the base material, and FMVSS No.
  • the test was conducted by the combustion test of 302 automobile inner layer material.
  • spark resistance the operation of generating a spark by repeating contact / non-contact between the cut surfaces in a state where 13.5 V is applied and the cord heater disposed in the surface heater is cut is 2 times / second. After 500 cycles, the appearance of the planar heater was observed.
  • the test results are also shown in Table 1.
  • the planar heaters according to the examples of the present invention have sufficient values for adhesiveness and current-carrying adhesiveness.
  • the cord heater does not peel from the material.
  • the cord heaters in all the examples were not ignited even when in contact with flames, and were excellent in flame retardancy.
  • the cord-like heater of Comparative Example 1 burned at a burning rate of 25 mm / min or more and failed the horizontal combustion test.
  • FMVSS No. Although it was a level that passed the combustion test of 302, the flame continued through the cord heater for a while.
  • the planar heaters according to the examples of the present invention had no particular change in appearance even after 500 contact / non-contact operations, and were excellent in spark resistance.
  • the cut portion changed to black from about 200 times, the heat-sealed portion and the insulating coating melted around 400 times, and the conductor wire was completely exposed. It was way.
  • a tube is made of the material constituting the heat-sealed portion of Examples 1 to 5 and Comparative Example 1, and Ni—Cr wire is inserted from both ends of the tube, so that the current during conduction becomes 8A.
  • the operation of repeating contact and non-contact inside the tube was performed 500 times at a cycle of 1.5 times / second. According to this, the tubes made of the materials of Examples 1 to 5 were not abnormal in appearance, but the tube made of the material of Comparative Example 1 was changed to black and the occurrence of pinholes was confirmed.
  • the non-woven fabric as the base material was changed to the mixing ratio of the heat-fusible fiber and the flame-retardant fiber as shown in Table 3, and it was set as Examples 6 to 8 (the mixing ratio was (In parts by weight).
  • the test of the bending resistance of a base material, adhesiveness, and a flame retardance was done.
  • the bending resistance was measured by a cantilever method described in JIS-L1096 (1999).
  • Adhesiveness measured the force when fixing a base material and pulling up a cord-like heater upward and peeling.
  • the flame retardancy is FMVSS No. Tested by combustion test of 302 automotive inner layer material. The test results are also shown in Table 3.
  • Example 8 In terms of adhesiveness, Example 8 in which the amount of heat-fusible fiber mixed was 30% was slightly lower than Examples 6 and 7.
  • flame retardancy all of Examples 6 to 8 were self-extinguishing and showed excellent flame retardancy.
  • Example 9 The planar heater obtained by the third embodiment is referred to as Example 9.
  • the cord-like heater in the ninth embodiment is as shown in FIG.
  • the flame retardancy of Example 9 was measured.
  • the flame retardancy was tested by the UL1581 horizontal combustion test (2008, 4th edition) for the cord-shaped heater before being placed on the base material, and FMVSS No. Tested by combustion test of 302 automotive inner layer material.
  • combustion stopped at the part where the heat-sealing part 9 was interrupted, and no further combustion occurred, and no drip (combustion drop) was generated. Passed the exam.
  • FMVSS No. tested in the state of a planar heater The combustion test of 302 automotive inner layer material also passed because the combustion stopped and the fire was extinguished.
  • the cord-like heater is disposed in a predetermined shape such as a meandering shape on a base material such as an aluminum foil or a non-woven fabric to form a planar heater, such as an electric blanket, an electric carpet, a car seat heater, a steering heater, a heating toilet seat It can be suitably used for heaters for anti-fogging mirrors, cooking utensils and the like.
  • cord-shaped heater unit for example, a mode in which the cord-shaped heater is wound around and bonded to a pipe, a tank, or the like, or arranged in the pipe can be considered.
  • Specific applications include, for example, antifreezing heaters such as pipes and freezer pipe drains, heat insulation heaters such as air conditioners and dehumidifiers, defrosting heaters such as refrigerators and freezers, drying heaters, and floor heating heaters. Can be suitably used.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Resistance Heating (AREA)
  • Surface Heating Bodies (AREA)

Abstract

L'invention porte sur un dispositif de chauffage en cordon qui peut être utilisé pour des applications nécessitant des propriétés de résistance au feu, et sur un dispositif de chauffage plan utilisant le dispositif de chauffage en cordon. Un dispositif de chauffage en cordon comprend un fil générateur de chaleur et une section thermosoudée qui est formée sur la périphérie externe du fil générateur de chaleur. Le fil générateur de chaleur est formé par enroulement de fils élémentaires électriquement conducteurs sur un fil d'âme et application d'un revêtement isolant sur la périphérie externe des fils élémentaires électriquement conducteurs enroulés, ou est formé par alignement parallèlement l'un à l'autre ou torsadage ensemble de fils élémentaires électriquement conducteurs revêtus d'un revêtement isolant. La section thermosoudée comprend une composition polymère ignifuge, et le dispositif de chauffage en cordon est configuré pour posséder des propriétés d'ininflammabilité satisfaisant un essai de combustion horizontale conforme à UL1581.
PCT/JP2010/061007 2009-07-03 2010-06-29 Dispositif de chauffage en cordon et dispositif de chauffage plan WO2011001953A1 (fr)

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WO2013127131A1 (fr) * 2012-03-02 2013-09-06 深圳市矽烁科技有限公司 Fil chauffant électrique
WO2014103981A1 (fr) 2012-12-25 2014-07-03 株式会社クラベ Corps de chauffe en forme de cordon et corps de chauffe en forme de feuille
CN106016432A (zh) * 2016-07-01 2016-10-12 宁波先锋电器制造有限公司 一种高热防烫电暖器
CN106196249A (zh) * 2016-07-01 2016-12-07 宁波先锋电器制造有限公司 一种散热片
CN106196245A (zh) * 2016-07-01 2016-12-07 宁波先锋电器制造有限公司 一种速热电暖器
CN106196244A (zh) * 2016-07-01 2016-12-07 宁波先锋电器制造有限公司 一种高热电暖器
WO2019021970A1 (fr) 2017-07-26 2019-01-31 株式会社クラベ Élément chauffant en forme de cordon, élément chauffant en forme de feuille, et procédé de production d'élément chauffant en forme de feuille
WO2021104945A1 (fr) * 2019-11-25 2021-06-03 Ke Kelit Kunststoffwerk Gmbh Système de chauffage de zone électrique ayant un câble chauffant à limitation automatique
WO2021186972A1 (fr) 2020-03-19 2021-09-23 株式会社クラベ Dispositif de chauffage en forme de cordon et dispositif de chauffage plan
WO2022054701A1 (fr) 2020-09-10 2022-03-17 株式会社クラベ Dispositif de chauffage en forme de cordon et dispositif de chauffage plan
WO2023162409A1 (fr) 2022-02-23 2023-08-31 株式会社クラベ Dispositif de chauffage en forme de cordon et dispositif de chauffage plan

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JPH0821640A (ja) * 1994-07-07 1996-01-23 Toyobo Co Ltd 電気カーペット
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Publication number Priority date Publication date Assignee Title
WO2013127131A1 (fr) * 2012-03-02 2013-09-06 深圳市矽烁科技有限公司 Fil chauffant électrique
JPWO2014103981A1 (ja) * 2012-12-25 2017-01-12 株式会社クラベ コード状ヒータと面状ヒータ
WO2014103981A1 (fr) 2012-12-25 2014-07-03 株式会社クラベ Corps de chauffe en forme de cordon et corps de chauffe en forme de feuille
CN104871639A (zh) * 2012-12-25 2015-08-26 株式会社克拉比 绳状加热器和片状加热器
US10136475B2 (en) 2012-12-25 2018-11-20 Kurabe Industrial Co., Ltd. Cord-shaped heater and sheet-shaped heater
CN106196249A (zh) * 2016-07-01 2016-12-07 宁波先锋电器制造有限公司 一种散热片
CN106196244A (zh) * 2016-07-01 2016-12-07 宁波先锋电器制造有限公司 一种高热电暖器
CN106196245A (zh) * 2016-07-01 2016-12-07 宁波先锋电器制造有限公司 一种速热电暖器
CN106016432A (zh) * 2016-07-01 2016-10-12 宁波先锋电器制造有限公司 一种高热防烫电暖器
WO2019021970A1 (fr) 2017-07-26 2019-01-31 株式会社クラベ Élément chauffant en forme de cordon, élément chauffant en forme de feuille, et procédé de production d'élément chauffant en forme de feuille
US11457512B2 (en) 2017-07-26 2022-09-27 Kurabe Industrial Co., Ltd. Cord-shaped heater, sheet-shaped heater and manufacturing method of sheet-shaped heater
WO2021104945A1 (fr) * 2019-11-25 2021-06-03 Ke Kelit Kunststoffwerk Gmbh Système de chauffage de zone électrique ayant un câble chauffant à limitation automatique
WO2021186972A1 (fr) 2020-03-19 2021-09-23 株式会社クラベ Dispositif de chauffage en forme de cordon et dispositif de chauffage plan
KR20220155270A (ko) 2020-03-19 2022-11-22 쿠라베 가부시키가이샤 코드 형상 히터와 면 형상 히터
WO2022054701A1 (fr) 2020-09-10 2022-03-17 株式会社クラベ Dispositif de chauffage en forme de cordon et dispositif de chauffage plan
WO2023162409A1 (fr) 2022-02-23 2023-08-31 株式会社クラベ Dispositif de chauffage en forme de cordon et dispositif de chauffage plan

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