JP2000133422A - Heating element having electrode structure and electrothermal board for floor heating - Google Patents
Heating element having electrode structure and electrothermal board for floor heatingInfo
- Publication number
- JP2000133422A JP2000133422A JP31832898A JP31832898A JP2000133422A JP 2000133422 A JP2000133422 A JP 2000133422A JP 31832898 A JP31832898 A JP 31832898A JP 31832898 A JP31832898 A JP 31832898A JP 2000133422 A JP2000133422 A JP 2000133422A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- fiber
- heating element
- hole
- electrode
- 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.)
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Links
Landscapes
- Surface Heating Bodies (AREA)
- Resistance Heating (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、保温・暖房用とし
て住宅、建築物、家畜用建物、植物栽培用温室、乗り物
の床、壁、窓、天井などの構造物および毛布、ソファ、
絨毯、マット、シートなどの衣類、家具、家電製品、恒
温槽用などの業務用電気製品あるいは凍結防止、除雪用
としてアスファルト、コンクリート、建築物の屋根、軒
などの基材に固定される発熱体に関するものである。ま
た、これを積層成分として有する床暖房用電熱ボードに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to structures such as houses, buildings, livestock buildings, greenhouses for plant cultivation, floors, walls, windows, ceilings, etc. of vehicles, blankets, sofas, etc.
Heating elements fixed to base materials such as asphalt, concrete, building roofs, eaves, etc. for clothing, furniture, household appliances, commercial electrical appliances such as thermostats, or for freezing and snow removal, such as carpets, mats and sheets. It is about. The present invention also relates to an electric heating board for floor heating having this as a laminated component.
【０００２】[0002]
【従来の技術】従来の発熱体は、金属箔電極と電源供給
電線との接続が単にハンダ付けされていたため、この接
続部分において、電源供給線電線に過度の引っ張り力が
かかると、金属箔電極を破壊する危険があった。2. Description of the Related Art In a conventional heating element, since the connection between a metal foil electrode and a power supply wire is simply soldered, if an excessive pulling force is applied to the power supply wire at this connection portion, the metal foil electrode will not work. There was a danger of destroying.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、発熱体に外
部から通電される電極部分の電気的接続を強固にし、断
線のないようにすることを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to strengthen the electrical connection of the electrode portion which is energized from the outside to the heating element so that there is no disconnection.
【０００４】[0004]
【課題を解決するための手段】本発明者らは鋭意研究し
た結果、発熱積層体を構成する繊維強化樹脂プリプレグ
シートおよび／または樹脂フィルムの電極部分に金属金
網などの表面粗さを有するアンカー部を設けると共に、
該アンカー部の上部に貫通孔が設けることにより、ハン
ダ付け等で接続された電源供給電線を樹脂でモールドし
て発熱体の本体に対し強固に接着することができること
を見いだし本発明に至った。Means for Solving the Problems As a result of intensive studies, the present inventors have found that an electrode portion of a fiber reinforced resin prepreg sheet and / or a resin film constituting a heat generating laminate has a surface roughness such as a metal wire mesh at an electrode portion. Along with
By providing a through hole in the upper part of the anchor portion, it has been found that the power supply wire connected by soldering or the like can be molded with resin and firmly adhered to the body of the heating element, and the present invention has been accomplished.
【０００５】即ち、本発明は以下の（１）〜（４）であ
る。 （１）電極部を有する発熱体と、その上面および／また
は下面に積層される繊維強化プリプレグシートおよび／
または樹脂フィルムを積層成分として含む発熱積層体で
あって、該電極には表面粗さを有するアンカー部が設け
られており、該電極側に配置された該繊維強化プリプレ
グシートおよび／または樹脂フィルムはアンカー部上部
に貫通孔が設けられ、該アンカー部に電源供給線が接続
され、該貫通孔に樹脂がモールドされたことを特徴とす
る電極部構造を有する発熱体。 （２）発熱体が非導電性繊維および導電性繊維の交点を
接合してなる網目状構造体であることを特徴とする上記
（１）に記載された電極部構造を有する発熱体。 （３）非導電性繊維および導電性繊維の交点を接合して
なる発熱体用の網目状構造体の両端において、表面粗さ
を有するアンカー部が積層され、該アンカー部に発熱体
外部から通電できるように貫通孔を加工した繊維強化樹
脂プリプレグシートが積層され、さらにこの貫通孔を加
工した繊維強化樹脂プリプレグシート面に該貫通孔以上
の半径の貫通孔を加工した樹脂フィルムが積層成形さ
れ、該貫通孔を加工した部分に樹脂がモールドされたこ
とを特徴とする上記（２）に記載された電極部構造を有
する発熱体。 （４）上記（１）ないし（３）に記載された電極部構造
を有する発熱体、繊維強化プリプレグ、均熱材および断
熱材を積層成分として含む床暖房用電熱ボード。That is, the present invention provides the following (1) to (4). (1) A heating element having an electrode portion, and a fiber-reinforced prepreg sheet and / or
Or a heat-generating laminate including a resin film as a laminate component, wherein the electrode is provided with an anchor portion having a surface roughness, and the fiber-reinforced prepreg sheet and / or resin film disposed on the electrode side is A heating element having an electrode structure, wherein a through hole is provided in an upper portion of the anchor portion, a power supply line is connected to the anchor portion, and a resin is molded in the through hole. (2) The heating element having the electrode portion structure according to the above (1), wherein the heating element is a network structure formed by joining intersections of non-conductive fibers and conductive fibers. (3) An anchor portion having a surface roughness is laminated on both ends of the mesh structure for the heating element formed by joining the intersections of the non-conductive fiber and the conductive fiber, and electricity is supplied to the anchor section from outside the heating element. A fiber reinforced resin prepreg sheet having a through hole processed therein is laminated thereon, and a resin film having a through hole having a radius equal to or greater than the through hole is laminated and formed on the fiber reinforced resin prepreg sheet surface having further processed the through hole, A heating element having the electrode portion structure according to the above (2), wherein a resin is molded in a portion where the through hole has been processed. (4) An electric heating board for floor heating comprising a heating element, a fiber-reinforced prepreg, a soaking material, and a heat insulating material having the electrode structure described in (1) to (3) above as laminated components.
【０００６】[0006]
【発明の実施の形態】本発明の発熱体は、特に限定され
ないが、耐久性および遠赤外線放射効率の見地から炭素
繊維を発熱抵抗体とする面状発熱体が好ましい。本発明
に好適な面状発熱体の一例として、特開平８−２０７１
９１号に開示されている発熱体が挙げられる。これは非
導電性繊維および導電性繊維の交点を接合してなる発熱
体用の網目状構造体の両端において、導電性繊維と電極
を接続した後、樹脂に包埋あるいは繊維強化プリプレグ
シートを積層して成形した発熱体用の繊維強化樹脂成形
体表面に均熱材および断熱材を固定したものである。以
下、該面状発熱体について説明をする。BEST MODE FOR CARRYING OUT THE INVENTION The heating element of the present invention is not particularly limited, but is preferably a sheet heating element using carbon fiber as a heating resistor from the viewpoint of durability and far-infrared radiation efficiency. JP-A-8-2071 discloses an example of a sheet heating element suitable for the present invention.
No. 91 discloses a heating element. This involves connecting the conductive fibers and the electrodes at both ends of the mesh structure for the heating element, which is made by joining the intersections of the non-conductive fibers and the conductive fibers, and then embedding in resin or laminating a fiber-reinforced prepreg sheet. The heat equalizing material and the heat insulating material are fixed on the surface of the fiber-reinforced resin molded body for the heating element formed by the above. Hereinafter, the planar heating element will be described.
【０００７】面状発熱体で使用する非導電性繊維５とし
ては導電率１０-5Ｓ／ｍ以下、好ましくは１０-9Ｓ／ｍ
以下の非導電性繊維であればどのような繊維でも用いる
ことができ、ガラス繊維、アラミド繊維、セラミック繊
維、アルミナ繊維、ナイロン繊維などが該非導電性繊維
として好ましく用いられる。また該非導電性繊維は通常
耐熱温度が８０℃以上、好ましくは１００℃以上、より
好ましくは１５０℃以上の繊維が用いられる。非導電性
繊維は好ましくは連続繊維であり、１０〜１００，００
０フィラメント、好ましくは５００〜１２，０００フィ
ラメントから構成される。The non-conductive fibers 5 used in the sheet heating element have a conductivity of 10 −5 S / m or less, preferably 10 −9 S / m.
Any of the following non-conductive fibers can be used, and glass fibers, aramid fibers, ceramic fibers, alumina fibers, nylon fibers, and the like are preferably used as the non-conductive fibers. As the non-conductive fiber, a fiber having a heat resistance temperature of 80 ° C. or higher, preferably 100 ° C. or higher, more preferably 150 ° C. or higher is used. The non-conductive fibers are preferably continuous fibres, from 10 to 100,00
0 filaments, preferably comprised between 500 and 12,000 filaments.
【０００８】面状発熱体で用いられる導電性繊維６とし
ては、発熱体として利用可能な導電性の繊維であればい
ずれの繊維でも良く、通常導電率１０〜１０7 Ｓ／ｍ、
好ましくは１０3 〜１０7 Ｓ／ｍ、より好ましくは１０
4 〜１０6 Ｓ／ｍの繊維が用いられる。該導電性繊維と
して、カーボンブラックや金属粒子を分散した樹脂など
からなる導電性繊維、ポリアセチレン、ポリピロール、
ポリピリジン自体あるいはこれに金属をドープした導電
性高分子繊維、鉄、銅、ニッケル、クロムなどの金属や
ステンレス、Ｎｉ−Ｃｒ、Ｎｉ−Ｃｕ−Ｆｅ、Ｎｉ−Ｃ
ｕなどの合金を原料とした金属繊維および炭素繊維など
が挙げられるが、特に入手しやすさ、軽量性、可撓性、
耐食性、引張強度の優れる点から炭素繊維が好ましく用
いられる。As the conductive fiber 6 used in the sheet heating element, any fiber may be used as long as it is a conductive fiber usable as a heating element, and usually has a conductivity of 10 to 10 7 S / m.
Preferably 10 3 to 10 7 S / m, more preferably 10 3
Fibers of 4 to 10 6 S / m are used. As the conductive fibers, conductive fibers made of carbon black or a resin in which metal particles are dispersed, polyacetylene, polypyrrole,
Polypyridine itself or conductive polymer fiber doped with metal, metal such as iron, copper, nickel, chromium, stainless steel, Ni-Cr, Ni-Cu-Fe, Ni-C
Metal fibers and carbon fibers made from alloys such as u, etc. are listed, but in particular, availability, light weight, flexibility,
Carbon fibers are preferably used from the viewpoint of excellent corrosion resistance and tensile strength.
【０００９】炭素繊維はピッチ系、ポリアクリロニトリ
ル（ＰＡＮ）系、セルロース系炭素繊維などあらゆる種
類の炭素繊維が導電性繊維として用いられる。該炭素繊
維は配向性があり、高い温度で焼成した繊維ほど導電率
は良くなるが、該焼成温度は８００〜３３００℃、好ま
しくは１１００℃〜２８００℃で処理した炭素繊維およ
び／あるいは０．５〜１０ｇ／フィラメント、好ましく
は１〜５ｇ／フィラメントの張力をかけて焼成した炭素
繊維が好ましく用いることができる。As the carbon fibers, all kinds of carbon fibers such as pitch-based, polyacrylonitrile (PAN) -based, and cellulose-based carbon fibers are used as the conductive fibers. The carbon fibers have orientation, and the higher the temperature, the higher the conductivity of the fiber. The higher the firing temperature, the higher the firing temperature is 800 to 3300C, preferably 1100C to 2800C. Carbon fibers fired under a tension of 10 to 10 g / filament, preferably 1 to 5 g / filament can be preferably used.
【００１０】導電性繊維は好ましくは連続繊維であり、
それぞれ１０〜１００，０００フィラメント、好ましく
は５００〜１２，０００フィラメントからなる導電性繊
維束で構成することができる。[0010] The conductive fibers are preferably continuous fibers,
Each of the conductive fiber bundles can be composed of 10 to 100,000 filaments, preferably 500 to 12,000 filaments.
【００１１】導電性繊維および非導電性繊維は、少なく
とも一方の繊維を熱可塑性樹脂あるいは熱可塑性樹脂繊
維を任意の割合で、好ましくは熱可塑性樹脂繊維を５〜
７０ｍａｓｓ％、より好ましくは１０〜６０ｍａｓｓ％
の割合で混成することができる。ここで混成とは上記
導電性繊維あるいは非導電繊維の１００〜１０００００
フィラメントからなる１本の繊維束が熱可塑性樹脂で被
覆されていること、導電性繊維あるいは非導電性繊維
および熱可塑性繊維が１００〜１０００００フィラメン
トの１本の繊維束として混繊されていること、導電性
繊維あるいは非導電性繊維の表面に熱可塑性樹脂繊維が
規則的あるいはランダムに付着して１本の繊維束となっ
ていることをいう。The conductive fiber and the non-conductive fiber may be made of a thermoplastic resin or a thermoplastic resin fiber at an arbitrary ratio of at least one of the fibers, preferably 5 to 5.
70 mass%, more preferably 10 to 60 mass%
Can be mixed. Here, the hybrid means 100 to 100000 of the conductive fiber or the non-conductive fiber.
One fiber bundle consisting of filaments is coated with a thermoplastic resin, conductive fibers or non-conductive fibers and thermoplastic fibers are mixed as one fiber bundle of 100 to 100,000 filaments, This means that thermoplastic resin fibers are regularly or randomly attached to the surface of conductive fibers or non-conductive fibers to form one fiber bundle.
【００１２】被覆方法は押出法、熱可塑性樹脂を熱溶融
あるいはエマルジョン化して浸漬法、スプレー法、静電
塗装法など繊維束内外部、特に繊維束外部を樹脂で被覆
する方法であればどのような方法でも良く、また融点、
分子量、化学的組成など物理的・化学的構造の異なる２
種類の樹脂を用いて２層以上に被覆しても良い。この場
合外側の熱可塑性樹脂は内側の熱可塑性樹脂よりも低融
点のものを使用すると繊維の被覆が十分に行えかつ繊維
同士の交点で接合も容易である。また、混繊方法は各々
の繊維１００〜１０００００フィラメントを空気流（エ
アージェット）などで均一に混ぜ合わせる方法が好まし
く用いられる。The coating method may be any method that covers the inside and outside of the fiber bundle, especially the outside of the fiber bundle with the resin, such as an extrusion method, hot melting or emulsification of a thermoplastic resin, and a dipping method, a spray method, or an electrostatic coating method. Method, melting point,
2 with different physical and chemical structures such as molecular weight and chemical composition
Two or more layers may be coated using different kinds of resins. In this case, if the outer thermoplastic resin has a lower melting point than that of the inner thermoplastic resin, the fiber can be sufficiently covered and the fiber can be easily joined at the intersection of the fibers. As the fiber mixing method, a method of uniformly mixing 100 to 100,000 filaments of each fiber by an air stream (air jet) or the like is preferably used.
【００１３】面状発熱体において、上記導電性繊維およ
び非導電性繊維は撚りをかけてもかけなくても良い。撚
りをかける時期は混繊繊維であれば混繊後、その他の場
合はいずれの工程で撚りをかけても良い。撚りをかけた
場合は特に導電性繊維、特に炭素繊維の毛羽の発生を少
なくできる。撚りをかける程度はどのような程度でもよ
いが、網目状構造の交点で押しつぶされ偏平になって良
好な接合を有する程度が好ましい。In the sheet heating element, the conductive fibers and the non-conductive fibers may or may not be twisted. Twisting may be performed after blending if it is a mixed fiber, and in other cases, twisting may be performed in any process. When twisting is performed, generation of fluff of conductive fibers, particularly carbon fibers, can be reduced. The degree of twisting may be any degree, but is preferably such that it is crushed and flattened at the intersection of the network structure and has good bonding.
【００１４】熱可塑性樹脂および熱可塑性樹脂繊維は熱
可塑性樹脂として通常知られる樹脂であればどのような
樹脂でも用いることができ、好ましくはナイロン樹脂、
液晶性芳香族ポリアミド樹脂、ポリエステル樹脂、液晶
性芳香族ポリエステル樹脂、ポリプロピレン樹脂、ポリ
エーテルスルホン樹脂、ポリフェニレンサルファイド樹
脂、ポリエーテルエーテルケトン樹脂、ポリスルホン樹
脂、ポリ塩化ビニル樹脂、ビニロン樹脂、アラミド樹
脂、フッ素樹脂などの樹脂が用いられる。As the thermoplastic resin and the thermoplastic resin fiber, any resin can be used as long as it is a resin generally known as a thermoplastic resin.
Liquid crystalline aromatic polyamide resin, polyester resin, liquid crystalline aromatic polyester resin, polypropylene resin, polyether sulfone resin, polyphenylene sulfide resin, polyether ether ketone resin, polysulfone resin, polyvinyl chloride resin, vinylon resin, aramid resin, fluorine Resin such as resin is used.
【００１５】上記熱可塑性樹脂の融点は導電性繊維およ
び非導電性繊維に含浸されるマトリックス樹脂の熱硬化
温度あるいは熱溶融温度よりも高いことが好ましいが、
高くなくても網目状構造体の形状を保持することは可能
であり、問題ない。耐熱温度は８０℃以上、好ましくは
１００℃以上、より好ましくは１５０℃以上ある熱可塑
性樹脂および熱可塑性樹脂繊維が用いられる。The melting point of the thermoplastic resin is preferably higher than the thermosetting or melting temperature of the matrix resin impregnated in the conductive fibers and the nonconductive fibers.
Even if it is not high, it is possible to maintain the shape of the network structure, and there is no problem. A thermoplastic resin and a thermoplastic resin fiber having a heat resistance of 80 ° C. or higher, preferably 100 ° C. or higher, more preferably 150 ° C. or higher are used.
【００１６】また、導電性繊維と混成する熱可塑性樹脂
および熱可塑性樹脂繊維の場合はカーボンブラックや
銀、銅などの金属粒子を分散した熱可塑性樹脂および熱
可塑性樹脂繊維などからなる導電性樹脂あるいは導電性
樹脂繊維を用いてもよい。該導電性樹脂あるいは導電性
樹脂繊維の導電率は１０-2〜１０5 Ｓ／ｍあることが好
ましい。In the case of a thermoplastic resin and a thermoplastic resin fiber mixed with a conductive fiber, a conductive resin comprising a thermoplastic resin and a thermoplastic resin fiber in which metal particles such as carbon black, silver and copper are dispersed, or Conductive resin fibers may be used. The conductivity of the conductive resin or the conductive resin fiber is preferably 10 −2 to 10 5 S / m.
【００１７】導電性繊維および非導電性繊維は任意の目
開きの網目状構造体１７に形成し、次いで加熱処理する
ことにより導電性繊維および非導電性繊維各々の交点で
熱可塑性樹脂あるいは熱可塑性樹脂繊維が融着すること
によって接合する。加熱温度は導電性繊維および非導電
性繊維が融着できる温度以上であれば良く、好ましくは
熱可塑性樹脂あるいは熱可塑性樹脂繊維の溶融温度以
上、通常１００〜４００℃の範囲で行う。加熱融着方法
は加熱したプレスや熱ロールによる圧着、張力下あるい
は無張力下での高温槽や熱風の吹き付けによる熱溶融な
どどのような方法を用いても良い。The conductive fibers and the non-conductive fibers are formed into a network structure 17 having an arbitrary opening, and then subjected to a heat treatment to form a thermoplastic resin or a thermoplastic resin at the intersections of the conductive fibers and the non-conductive fibers. Bonding is achieved by fusion of resin fibers. The heating temperature may be at least a temperature at which the conductive fiber and the non-conductive fiber can be fused, and is preferably at least the melting temperature of the thermoplastic resin or the thermoplastic resin fiber, usually in the range of 100 to 400 ° C. As the heat fusion method, any method such as pressure bonding with a heated press or a hot roll, hot melting under tension or no tension, or hot fusion by blowing hot air may be used.
【００１８】該融着工程で熱可塑性樹脂および熱可塑性
樹脂繊維は少なくとも交点で熱溶融して融着しているこ
とが必要であるが、交点の融着が完全であれば交点部分
の熱可塑性樹脂および熱可塑性樹脂繊維内部あるいは一
部が未溶融であっても問題ない。また、該融着工程で交
点部分以外で熱可塑性樹脂あるいは熱可塑性樹脂繊維の
全体が熱溶融してもあるいは一部分が未溶融のままであ
っても問題ない。In the fusing step, it is necessary that the thermoplastic resin and the thermoplastic resin fiber are heat-melted and fused at least at the intersection, but if the fusion at the intersection is complete, the thermoplasticity of the intersection is reduced. There is no problem even if the inside or a part of the resin and the thermoplastic resin fiber is not melted. In addition, there is no problem even if the entire thermoplastic resin or thermoplastic resin fiber is thermally melted or a part of the thermoplastic resin is not melted except for the intersection in the fusion step.
【００１９】上記網目状構造は平織り、綾織り、朱子織
り、絡み織り、模しゃ織りなどの織物、井桁状組布、３
軸組布、多軸組布などの織機を用いないで造った組布と
いわれるメッシュ状の不織布など任意の構造とすること
ができるが、製造工程の簡単なことなどから組布が好ま
しく用いられる。The net-like structure is a plain weave, twill weave, satin weave, entangled weave, imitation weave, or other woven fabric, cross-girder fabric,
Any structure such as a mesh-like nonwoven fabric called a braid made without using a loom such as a framed fabric or a multi-axis braided fabric can be used, but a braided fabric is preferably used because of a simple manufacturing process. .
【００２０】このときの各繊維の配置方向であるが、網
目状構造を形成すればどのような配置でも良いが、例え
ば導電性繊維を経糸方向など一方向に配置し、非導電
性繊維を導電繊維と実質的に直交する方向に配置して織
物状あるいは組布状に形成する方法、導電性繊維を経
糸方向など一方向に配置し、非導電性繊維を導電繊維と
同じ方向および異なった一方向以上の複数の方向に配置
し織物状あるいは組布状に形成するような方法などを用
いることができる。The arrangement direction of each fiber at this time is not particularly limited as long as a network structure is formed. For example, conductive fibers are arranged in one direction such as a warp direction, and non-conductive fibers are arranged in a conductive direction. A method in which the fibers are arranged in a direction substantially perpendicular to the fibers to form a woven or braided shape, the conductive fibers are arranged in one direction such as the warp direction, and the non-conductive fibers are arranged in the same direction as the conductive fibers and in a different direction. For example, a method of arranging in a plurality of directions equal to or more than the direction and forming in a woven or braided shape can be used.
【００２１】なお、組布状に形成するときは導電性繊維
の上下に非導電性繊維を配置する方法、導電性繊維の上
部のみあるいは下部のみに非導電性繊維を配置する方法
何れの方法も用いることができるが、導電性繊維を保護
するため組布状あるいは目開きの大きな織物状の非導電
性繊維を導電性繊維の上下方向から挟んで融着する方法
が好ましく採用される。上記のように配置した導電性繊
維は繊維の交点が熱溶融して融着したとき偏平な断面形
状となるが、偏平な繊維の方が表面積が大きくなり発熱
効率は向上する。When forming into a braided form, any of the method of arranging non-conductive fibers above and below the conductive fibers, and the method of arranging non-conductive fibers only above or below the conductive fibers can be used. Although it can be used, in order to protect the conductive fibers, a method in which non-conductive fibers in the form of a woven fabric or a fabric having large openings are sandwiched and fused from above and below the conductive fibers is preferably employed. The conductive fibers arranged as described above have a flat cross-sectional shape when the intersections of the fibers are melted and fused, but the flat fibers have a larger surface area and the heat generation efficiency is improved.
【００２２】上記導電性繊維は必ずしも網目状体内に均
等に配置させる必要はなく、上記、の配置の場合で
あれば導電性繊維束を２本以上、好ましくは５〜１５本
を１組とした２以上の複数のブロックに分け、各ブロッ
ク間の間を開けて配置することもできる。各ブロック内
の導電性繊維は各導電性繊維同士が接触しない距離で、
好ましくは１〜１００ｍｍ、好ましくは３〜５０ｍｍの
間隔で平行に配置され、さらに各ブロック間は１０〜３
００ｍｍ、好ましくは３０〜１５０ｍｍの間隔を開けて
平行に配置することができる。さらにそれそれのブロッ
ク間は１０〜１０００ｍｍ、好ましくは３０〜５００ｍ
ｍの間隔を開けて各ブロック導電性繊維が一方向に配向
するように平行に配置することができる。The conductive fibers need not necessarily be evenly arranged in the mesh-like body. In the case of the arrangement described above, two or more conductive fiber bundles, preferably 5 to 15 conductive fiber bundles are used as one set. It is also possible to divide into two or more blocks and arrange them with a space between each block. The conductive fibers in each block are at a distance where the conductive fibers do not contact each other,
It is preferably arranged in parallel at an interval of 1 to 100 mm, preferably 3 to 50 mm.
It can be arranged in parallel with an interval of 00 mm, preferably 30-150 mm. Furthermore, the distance between each block is 10 to 1000 mm, preferably 30 to 500 m
Each block conductive fiber can be arranged in parallel so as to be oriented in one direction with an interval of m.
【００２３】該導電性繊維同士および該非導電性繊維同
士の目開きは目的に応じて任意の範囲で行うことができ
るが、好ましくは上記交点を融着したときに繊維束同士
が該交点以外で融着しない範囲であればよく、目開きの
下限がｌｍｍ以上、好ましくは２ｍｍ以上、より好まし
くは５ｍｍ以上、最も好ましくは１０ｍｍ以上であり、
上記範囲の上限は５００ｍｍ以下、好ましくは１００ｍ
ｍ以下、最も好ましくは５０ｍｍ以下のものが適用され
る。ここで、目開きとは実質的に平行に配置された相隣
り合う導電性繊維、非導電性繊維を含めた繊維同士の間
隔をいう。The openings between the conductive fibers and the non-conductive fibers can be made in an arbitrary range according to the purpose. Preferably, when the above intersections are fused, the fiber bundles are made at other than the intersections. Any range may be used as long as it does not fuse, and the lower limit of the aperture is 1 mm or more, preferably 2 mm or more, more preferably 5 mm or more, and most preferably 10 mm or more.
The upper limit of the above range is 500 mm or less, preferably 100 m
m or less, most preferably 50 mm or less is applied. Here, the opening refers to a space between fibers including adjacent conductive fibers and non-conductive fibers which are arranged substantially in parallel.
【００２４】上記下限以下であれば繊維同士が交点以外
で融着し網目状構造体の可撓性が失われ、加工性低下や
ロール巻きなどにして運搬しにくくなったり、導電性繊
維の露出面積が小さかったり、脱気が不十分で気泡の層
ができたりするため導電性繊維と電極を接続しにくくな
ってしまい、上記上限以上であれば網目状構造体の強度
や発熱体の発熱効率、補強効果が低下するため好ましく
ない。Below the lower limit, the fibers are fused together at points other than the intersections, so that the flexibility of the network structure is lost. It is difficult to connect the conductive fiber and the electrode because the area is small or the layer of air bubbles is formed due to insufficient degassing, and if the above upper limit is exceeded, the strength of the network structure and the heat generation efficiency of the heating element. This is not preferred because the reinforcing effect is reduced.
【００２５】融着後は雰囲気温度に冷却し端部を設計寸
法にトリミングして巻き取り機にて巻き取ることも好ま
しく採用される。また該網目状構造体を適当な幅・長さ
に切断、成形しても良い。このとき該網目状構造体の交
点は融着しているため、任意の形状に加工することは容
易である。After fusing, it is also preferable to cool to ambient temperature, trim the end to a designed size, and wind it up with a winder. Further, the mesh structure may be cut and formed into an appropriate width and length. At this time, since the intersections of the network structure are fused, it is easy to work into an arbitrary shape.
【００２６】該網目状構造体は任意の位置に配置し、繊
維強化樹脂成形体に成形することができる。該繊維強化
樹脂成形体は該網目状構造体に銅箔などの電極７を接続
しており、マトリックス樹脂を含浸するかあるいは繊維
強化プリプレグを積層することができる。The network structure can be arranged at an arbitrary position and molded into a fiber-reinforced resin molded product. The fiber-reinforced resin molded body has an electrode 7 such as a copper foil connected to the network structure, and can be impregnated with a matrix resin or laminated with a fiber-reinforced prepreg.
【００２７】該繊維強化プリプレグ４、９の強化繊維は
ガラス繊維などの非導電性繊維で構成されていることが
好ましく、これにより補強効果だけでなく絶縁効果を増
すことができる。該強化繊維は一方向材、織物、不織布
などどのような繊維形態でもよい。該繊維強化プリプレ
グ層の厚さは０．０５〜０．５ｍｍであることが均熱材
２に熱を伝えやすく好ましい。The reinforcing fibers of the fiber reinforced prepregs 4 and 9 are preferably made of non-conductive fibers such as glass fibers, so that not only the reinforcing effect but also the insulating effect can be increased. The reinforcing fiber may be in any fiber form such as a unidirectional material, a woven fabric, and a nonwoven fabric. The thickness of the fiber reinforced prepreg layer is preferably 0.05 to 0.5 mm because heat is easily transmitted to the heat equalizing material 2.
【００２８】該強化繊維プリプレグの強化繊維には非導
電性の任意の繊維が利用できるがガラス繊維、アラミド
繊維、セラミック繊維、アルミナ繊維、ナイロン繊維な
どが好ましく用いられる。As the reinforcing fiber of the reinforcing fiber prepreg, any non-conductive fiber can be used, but glass fiber, aramid fiber, ceramic fiber, alumina fiber, nylon fiber and the like are preferably used.
【００２９】該樹脂は用途に応じて任意の樹脂を用いる
ことができるが、好ましくは熱可塑性樹脂および熱硬化
性樹脂が用いられ、さらに好ましくはポリエーテルエー
テルケトン樹脂、ポリフェニレンサルファイド樹脂、ポ
リアミドイミド樹脂、ポリエステル樹脂、ポリイミド樹
脂、フェノール樹脂、エポキシ樹脂、不飽和ポリエステ
ル樹脂などを用いることができる。As the resin, any resin can be used according to the application. Preferably, a thermoplastic resin or a thermosetting resin is used, and more preferably, a polyetheretherketone resin, a polyphenylenesulfide resin, or a polyamideimide resin is used. , A polyester resin, a polyimide resin, a phenol resin, an epoxy resin, an unsaturated polyester resin, and the like.
【００３０】該樹脂は耐熱性があることが好ましく、８
０℃以上、好ましくは１００℃、より好ましくは１５０
℃以上の耐熱性のある樹脂が用いることができる。上記
成形法は強化繊維プリプレグを用いる方法ではなく、網
目状構造体を型に入れて強化繊維を積層後、樹脂を含浸
させる方法も別な成形法として用いることができる。さ
らに、該繊維強化樹脂成形体は断熱材を下面にまた均熱
材を上面および／または下面に固定して発熱体にするこ
とができる。The resin preferably has heat resistance.
0 ° C. or higher, preferably 100 ° C., more preferably 150 ° C.
A resin having heat resistance of not less than ° C. can be used. The above-mentioned molding method is not a method using a reinforcing fiber prepreg, but a method in which a network-like structure is put into a mold, a reinforcing fiber is laminated, and a resin is impregnated can also be used as another molding method. Further, in the fiber-reinforced resin molded body, a heat insulator can be fixed to the lower surface and a soaking material can be fixed to the upper surface and / or the lower surface to form a heating element.
【００３１】本発明では電極の形状や積層シートの形状
を工夫することにより、アンカー効果が強まり、電極の
強度や電線との接着強度を向上させている。すなわち、
発熱体上の電極の一部あるいは全部に金属金網などの表
面粗さを有するアンカー部８を形成し、該アンカー部に
ハンダ付けや導電性樹脂によって電源供給線と接続し、
さらに該接続部分を樹脂１３でモールディングするの
で、電極強度を向上させ、かつ電極と電線との接着強度
を向上させることができる。In the present invention, by devising the shape of the electrode and the shape of the laminated sheet, the anchor effect is enhanced, and the strength of the electrode and the bonding strength with the electric wire are improved. That is,
An anchor portion 8 having a surface roughness such as a metal wire mesh is formed on part or all of the electrodes on the heating element, and the anchor portion is connected to a power supply line by soldering or conductive resin,
Further, since the connection portion is molded with the resin 13, the electrode strength can be improved, and the bonding strength between the electrode and the electric wire can be improved.
【００３２】表面粗さを有するアンカー部８としては、
導電性繊維あるいは導電性網目状体を電極部に配置する
ことで形成することが出来る。アンカー部に用いられる
導電性繊維あるいは導電性網目状体としては金属繊維、
金属金網、金属繊維織物、パンチングメタル、エキスパ
ンドメタル、金属メッシュベルト、有機導電性繊維織
物、導電性プラスチック製メッシュなどが挙げられる。
これらアンカー部は後記の図１および２に示されるよう
に、金属箔７上に積層して電極の一部とすることもでき
る。金属箔７を使用すれば、成形時に繊維強化プリプレ
グ４から樹脂が染み込んでアンカー部を被覆することが
ないので、成形後貫通孔１８を通してアンカー部８にリ
ード線１５を良好に接続することができる。電線等の電
源供給線は該電極のアンカー部に接続される。As the anchor portion 8 having the surface roughness,
It can be formed by arranging a conductive fiber or a conductive mesh on the electrode portion. Conductive fibers or conductive mesh used for the anchor portion are metal fibers,
Examples include a metal wire mesh, a metal fiber fabric, a punching metal, an expanded metal, a metal mesh belt, an organic conductive fiber fabric, and a conductive plastic mesh.
As shown in FIGS. 1 and 2 described below, these anchor portions can be laminated on a metal foil 7 to form a part of an electrode. If the metal foil 7 is used, the resin does not permeate from the fiber reinforced prepreg 4 at the time of molding and does not cover the anchor portion, so that the lead wire 15 can be satisfactorily connected to the anchor portion 8 through the through hole 18 after molding. . A power supply line such as an electric wire is connected to the anchor portion of the electrode.
【００３３】アンカー部に用いられる導電性網目状体の
目開きは通常、織物やメッシュベルトの場合で１０〜５
００メッシュのもの、パンチングメタルの場合で開孔率
１０〜６０％のもの、エキスパンドメタルの場合でＳＷ
が０．１〜３０ｍｍのものを用いることができる。The opening of the conductive mesh used for the anchor portion is usually 10 to 5 in the case of a woven fabric or a mesh belt.
00 mesh, punching metal 10% to 60% porosity, expanded metal SW
Of 0.1 to 30 mm can be used.
【００３４】上記の織物の織り方は特に限定がなく、平
織り、綾織り、朱子織り、模しゃ織り、平畳織り、綾畳
織り、菱型、亀甲型、クリンプ織り、畳織り、丸型、撚
り線織り、筵織り、トリプル織り等を用いることができ
る。The weaving method of the above-mentioned woven fabric is not particularly limited. A stranded wire weave, a straw weave, a triple weave, or the like can be used.
【００３５】以下、図１及び２を用いて、本発明の発熱
体の構造を説明する。図１には本発明の発熱体の具体的
な構造が示される。図２は、こうして製造された本発明
の電極構造を有する発熱体の電極部分の断面図である。
図１とは上下が逆になっている。The structure of the heating element of the present invention will be described below with reference to FIGS. FIG. 1 shows a specific structure of the heating element of the present invention. FIG. 2 is a cross-sectional view of the electrode portion of the heating element having the electrode structure of the present invention thus manufactured.
1 is upside down.
【００３６】図１において、適当な長さの網目状構造体
１７を１枚、あるいは複数枚の場合は任意の間隔あるい
は等間隔で平行に配置させることができる。上記のよう
に配置した発熱体用の網目状構造体１７の導電性繊維６
の両端部には電極として銅、アルミなどの金属製箔片７
が設けられ、該電極上に導電性繊維あるいは導電性網目
状体からなる表面粗さを有するアンカー部７を作製する
ことができる。In FIG. 1, one or a plurality of mesh-like structures 17 having an appropriate length can be arranged in parallel at arbitrary intervals or at equal intervals in the case of a plurality. The conductive fibers 6 of the network structure 17 for the heating element arranged as described above
At both ends, metal foil pieces 7 such as copper and aluminum are used as electrodes.
Is provided, and an anchor portion 7 having a surface roughness made of a conductive fiber or a conductive network can be produced on the electrode.
【００３７】電極の大きさは幅５〜１００ｍｍ、好まし
くは幅１０〜５０ｍｍの電極が採用される。このときの
金属製箔片７、アンカー部８の融点はマトリックス樹脂
の樹脂硬化温度あるいは熱溶融温度より高いことかつ耐
熱性があることが望ましい。電極は温度分布が均一にな
るように網目状構造体１７の両端だけでなく、網目状構
造体１７の中間に１つ以上の補助電極を作製してもよ
い。The size of the electrodes is 5 to 100 mm in width, preferably 10 to 50 mm in width. At this time, it is desirable that the melting points of the metal foil pieces 7 and the anchor portions 8 be higher than the resin curing temperature or the heat melting temperature of the matrix resin and have heat resistance. One or more auxiliary electrodes may be formed not only at both ends of the network structure 17 but also in the middle of the network structure 17 so that the temperature distribution is uniform.
【００３８】上記アンカー部８を付与した網目状構造体
１７の電極側にリード線貫通孔１８を開けた強化繊維プ
リプレグ９を、電極側と反対側には貫通孔のない強化繊
維プリプレグ４を積層し、さらに電極側の貫通孔のある
側には、電極貫通孔の周囲３０〜６０ｍｍの範囲に剥離
性に優れたフィルム２０を挿入し、最上面をＰＥＴフィ
ルムなどの保護用樹脂フィルム１で包み加圧・加熱して
繊維強化樹脂成形体を製造する。A reinforcing fiber prepreg 9 having a lead wire through hole 18 is laminated on the electrode side of the mesh structure 17 provided with the anchor portion 8, and a reinforcing fiber prepreg 4 having no through hole is laminated on the side opposite to the electrode side. Further, on the side of the electrode having the through hole, a film 20 having excellent peelability is inserted in a range of 30 to 60 mm around the electrode through hole, and the top surface is wrapped with a protective resin film 1 such as a PET film. Pressurizing and heating to produce a fiber reinforced resin molded body.
【００３９】該強化繊維プリプレグの貫通孔１８は直径
５〜５０ｍｍの範囲であり、該貫通孔１８を通して成形
後に電源供給線を接続することができるように、アンカ
ー部８の一部を露出することができる。該貫通孔１８に
成形前に剥離性蓋１９を埋め込むと成形後に取り除くこ
とができ、電源供給線接続用の貫通孔１８を容易に再形
成することができる。剥離フィルム２０および剥離性蓋
１９は、例えばフッ素樹脂、シリコン樹脂、フッ素樹脂
コートしたメッシュ等を使用することができる。The through hole 18 of the reinforcing fiber prepreg has a diameter of 5 to 50 mm, and a part of the anchor portion 8 is exposed so that a power supply line can be connected through the through hole 18 after molding. Can be. If the releasable lid 19 is embedded in the through hole 18 before molding, it can be removed after molding, and the through hole 18 for connecting the power supply line can be easily re-formed. For the release film 20 and the release lid 19, for example, a fluororesin, a silicone resin, a mesh coated with a fluororesin, or the like can be used.
【００４０】通常、剥離フィルム２０の径は剥離性蓋１
９よりも大きい。該剥離フィルム２０にメッシュ状、網
目状のフィルムなど表面に凹凸のあるフィルムを使用す
ればリード線貫通孔を開けた繊維強化プリプレグ９は表
面に凹凸２２を形成でき、アンカー効果によりハンダ１
４等の電極接続部の埋め込み用の樹脂１３との密着性が
増すため好ましい。該剥離性フィルム２０の周囲に沿っ
てＰＥＴフィルム１０を切断し、この剥離性フィルム２
０およびＰＥＴフィルムの一部２１を構造から取り去る
ことによって、器体本体に繊維強化樹脂が露出した面を
得ることができる。Usually, the diameter of the release film 20 is the same as that of the release lid 1.
Greater than 9. If a film having an uneven surface such as a mesh-like or mesh-like film is used as the release film 20, the fiber-reinforced prepreg 9 having a lead wire through hole can form the unevenness 22 on the surface, and the solder 1 can be formed by an anchor effect.
This is preferable because the adhesion of the electrode connection portion such as No. 4 to the resin for embedding 13 is increased. The PET film 10 is cut along the periphery of the peelable film 20, and the peelable film 2 is cut.
By removing the 0 and a part 21 of the PET film from the structure, it is possible to obtain a surface where the fiber reinforced resin is exposed on the container body.
【００４１】成形後は、ＰＥＴフィルム１０と繊維強化
樹脂９との間に挟まれている剥離フィルム２０の周囲を
切断し、このフィルムとＰＥＴフィルム２１を取り去る
とともに、リード線貫通孔のフッ素樹脂製蓋１９を取り
除き耐熱用リード線の一方を上記電極に接続することが
できる。After the molding, the periphery of the release film 20 sandwiched between the PET film 10 and the fiber reinforced resin 9 is cut off, the film and the PET film 21 are removed, and the lead wire through-hole made of fluororesin is formed. The lid 19 can be removed and one of the heat-resistant leads can be connected to the electrode.
【００４２】電極に接続後、電極の周囲を直径２０〜６
０ｍｍの範囲で、熱硬化性樹脂、例えばエポキシ樹脂
等、あるいは熱可塑性樹脂、例えばエチレン・酢酸ビニ
ル共重合体（ＥＶＡ）系ホットメルト樹脂等で、後に配
する断熱材の厚みと同じになるようにモールドし、電極
線を器体本体に強固に接続することができる。After connection to the electrodes, the circumference of the electrodes is 20 to 6 in diameter.
Within a range of 0 mm, a thermosetting resin such as an epoxy resin or a thermoplastic resin such as an ethylene / vinyl acetate copolymer (EVA) -based hot melt resin or the like is formed so as to have the same thickness as a heat insulating material provided later. And the electrode wires can be firmly connected to the main body.
【００４３】該モールド部分には、非導電性樹脂枠１２
（ブッシング）、例えば樹脂製枠等を併用して前記樹脂
を充填することができる。該非導電性樹脂枠の厚みも断
熱材の厚みと同じようにすることができる。リード線１
５の他方は複数の過熱防止装置１６（サーモスタット、
フィラメント、熱電対など）を接続し上記成形体下部の
所定の位置に配置、固定することができる。A non-conductive resin frame 12 is provided in the mold portion.
(Bushing), for example, the resin can be filled together with a resin frame. The thickness of the non-conductive resin frame can be the same as the thickness of the heat insulating material. Lead wire 1
The other of 5 is a plurality of overheat prevention devices 16 (thermostat,
(A filament, a thermocouple, etc.) can be connected and arranged and fixed at a predetermined position below the molded body.
【００４４】図２において、非導電性繊維５と導電性繊
維６からなる網目状構造体１７上に、例えば金属箔７か
らなる電極に表面粗さを有するアンカー部８が設けられ
る。網目状構造体１７の電極側にはリード線用の貫通孔
１８を開けた強化繊維プリプレグ９を、電極側と反対側
には貫通孔のない強化繊維プリプレグ４を積層し、さら
に電極側の貫通孔のある側には、電極貫通孔の周囲３０
〜６０ｍｍの範囲に剥離性に優れたフィルム２０を挿入
し、その上面にＰＥＴフィルムなどの樹脂フィルム１０
を加圧・加熱して繊維強化樹脂成形体を製造する。In FIG. 2, an anchor portion 8 having a surface roughness on an electrode made of, for example, a metal foil 7 is provided on a network structure 17 made of non-conductive fibers 5 and conductive fibers 6. A reinforcing fiber prepreg 9 having a through hole 18 for a lead wire is laminated on the electrode side of the mesh-like structure 17, and a reinforcing fiber prepreg 4 having no through hole is laminated on the side opposite to the electrode side. On the side with the hole, around the electrode through hole 30
A film 20 having excellent releasability is inserted in a range of up to 60 mm, and a resin film 10 such as a PET film is
To produce a fiber-reinforced resin molded article.
【００４５】リード線１５は表面粗さを有するアンカー
部８にハンダ付け１４され、断熱材１１と同じ厚みで樹
脂１３でモールドされる。リード線１５は過熱防止装置
１６に導かれる。上記繊維強化成形体においてリード線
１５および過熱防止・暖房制御装置１６を配した面は断
熱材１１で覆い、該断熱材を熱硬化樹脂などで固定する
ことができる。断熱材はどのようなものでも良いが、通
常ポリエステルフェルトなどが好ましく用いられる。ま
た、該断熱材は電極周辺部分、リード線、過熱防止装置
部分を打ち抜いてから固定することもできる。The lead wire 15 is soldered 14 to the anchor portion 8 having a surface roughness, and is molded with a resin 13 having the same thickness as the heat insulating material 11. The lead 15 is led to an overheat prevention device 16. The surface on which the lead wire 15 and the overheating prevention / heating control device 16 are disposed in the fiber reinforced molded body is covered with a heat insulating material 11, and the heat insulating material can be fixed with a thermosetting resin or the like. As the heat insulating material, any material may be used, but usually, polyester felt or the like is preferably used. Further, the heat insulating material can be fixed by punching out the electrode peripheral portion, the lead wire, and the overheat prevention device portion.
【００４６】本発明では上記成形体においてリード線等
を配した面に金属板あるいは金属箔を均熱材として配置
してもよいし、リード線と反対側の面に均熱材２を配置
しても良い。該均熱材には、金属板あるいは金属箔は任
意の金属が用いられるが、熱伝導性に優れる銅、アルミ
製のものを好ましく使用することができる。リード線の
端部は圧着端子を取付けることができる。繊維強化プリ
プレグシートおよび／または樹脂フィルムの貫通孔にＥ
ＶＡ、エポキシ樹脂などの樹脂１３をモールドする際に
は、該貫通孔に挿入出来る半径の円筒状の樹脂枠１２を
用意し、該円筒状の樹脂枠１２中に樹脂をモールドする
ことも、本発明の発熱体を製造する上で有効である。こ
のようにして網目状構造体に断熱材および均熱材を配し
た発熱体を製造することができる。In the present invention, a metal plate or a metal foil may be arranged as a heat equalizing material on the surface on which the lead wires and the like are arranged in the above-mentioned molded product, or the heat equalizing material 2 may be arranged on the surface opposite to the lead wires. May be. As the heat equalizing material, any metal can be used for the metal plate or metal foil, and copper and aluminum materials having excellent thermal conductivity can be preferably used. A crimp terminal can be attached to the end of the lead wire. E is inserted into the through holes of the fiber reinforced prepreg sheet and / or resin film.
When molding a resin 13 such as VA or epoxy resin, a cylindrical resin frame 12 having a radius that can be inserted into the through hole is prepared, and the resin is molded into the cylindrical resin frame 12. It is effective in producing the heating element of the invention. In this way, it is possible to manufacture a heating element in which a heat insulating material and a soaking material are arranged in a network structure.
【００４７】上記繊維強化樹脂成形体および発熱体は網
目状構造体を切断後製造する方法を開示したが、連続的
な網目状構造体を用いて繊維強化樹脂成形体あるいは発
熱体を製造した後に任意の長さ、幅に切断しても良い。Although the method of manufacturing the above-mentioned fiber-reinforced resin molded article and the heating element after cutting the network structure has been disclosed, after manufacturing the fiber-reinforced resin molded article or the heating element using the continuous network structure, It may be cut to any length and width.
【００４８】本発明の発熱体は、樹脂接着剤により電源
供給線が器体本体に強固に接着しているため、電源供給
線を引っ張り力がかかっても、力が器体本体にかかるた
め電極部分の破壊が起こらない。また、発熱体の集中応
力時の耐荷重は２００ＭＰａ以上、好ましくは３００Ｍ
Ｐａ以上、さらに好ましくは４００ＭＰａ以上を有して
いる。In the heating element of the present invention, since the power supply line is firmly adhered to the main body by the resin adhesive, even if a pulling force is applied to the power supply line, the force is applied to the main body, so that the electrode is provided. No destruction of parts. Further, the withstand load at the time of concentrated stress of the heating element is 200 MPa or more, preferably 300 M
Pa or more, more preferably 400 MPa or more.
【００４９】耐水絶縁性についても該発熱体を２５℃の
水中に２４時間浸漬しても均熱材と電極間の絶縁抵抗は
１ＭΩ以上、より好ましくは１０ＭΩ以上を有している
ため実用上全く問題がない。Regarding water resistance, even if the heating element is immersed in water at 25 ° C. for 24 hours, the insulation resistance between the soaking material and the electrode is 1 MΩ or more, more preferably 10 MΩ or more. there is no problem.
【００５０】[0050]
【実施例】以下に具体的な実施例を挙げるが本発明はこ
れらの実施例に限定されないことはいうまでもない。 ［実施例１］撚った炭素繊維（東レ（株）製Ｔ３００、
導電率５×１０4 Ｓ／ｍ）の３０００フィラメントを１
本の導電性繊維の経糸として該経糸９本を１ブロックと
した。該ブロックを６ブロック作り、各ブロック内の炭
素繊維束間を１ｃｍ開け、さらに各ブロック間を７ｃｍ
開けた配置で平行に並べ、該炭素繊維束を幅３ｍｍに開
繊し、上下からガラス繊維と熱可塑性樹脂からなるガラ
ス繊維組布（格子状、目開き１ｃｍ、日東紡績（株）製
ＫＣ０５０５Ｂ、４０ｇ／ｍ2 ）を積層して加熱し組布
と導電性繊維の交点を融着し、発熱体用の網目状構造体
１７を製造した。EXAMPLES Specific examples will be given below, but it goes without saying that the present invention is not limited to these examples. [Example 1] Twisted carbon fiber (T300 manufactured by Toray Industries, Inc.)
3000 filaments having a conductivity of 5 × 10 4 S / m)
Nine of the warp yarns were used as one block as warp yarns of the conductive fibers. The block is made up of 6 blocks, the space between the carbon fiber bundles in each block is opened by 1 cm, and the space between each block is further 7 cm.
The carbon fiber bundle is opened in parallel in an open arrangement, the carbon fiber bundle is spread to a width of 3 mm, and a glass fiber braided cloth made of a glass fiber and a thermoplastic resin (lattice, mesh opening 1 cm, Nitto Boseki KC0505B, 40 g / m 2 ) were laminated and heated to fuse the intersections of the braid and the conductive fibers, thereby producing a network-like structure 17 for a heating element.
【００５１】該網目状構造体を長さ１ｍ、幅１ｍに切断
した。該網目状構造体の炭素繊維の両端部を幅１５ｍｍ
の導電性粘着剤付き銅箔片７（寺岡製作所（株）製、Ｍ
ＦＴ−Ｎｏ．８３２１）で該導電性繊維と銅箔片が接合
するように固定し、かつ該網目状構造体内の炭素繊維が
各ブロック毎に電気回路的に直列つなぎになるように電
極を接続した。The mesh structure was cut into a length of 1 m and a width of 1 m. Both ends of the carbon fiber of the network structure were 15 mm wide.
Copper foil piece 7 with conductive adhesive (Teraoka Seisakusho Co., Ltd., M
FT-No. In 8321), the conductive fiber and the copper foil piece were fixed so as to be bonded, and electrodes were connected such that the carbon fibers in the network structure were connected in series in an electric circuit for each block.
【００５２】図１に示すように、網目状構造体の下面に
ガラス繊維クロスプリプレグ４を積層し、該網目状構造
体の上面にはアンカー部８にはリード線１５（ビーメッ
クス、０．７５ｍｍ2 古川電工製）を固定できるようア
ンカー部上部に予め直径１０ｍｍの貫通孔１８をあけた
ガラス繊維クロスプリプレグ９を積層した。該貫通孔内
部には貫通孔１８と同径のフッ素樹脂製剥離シート１９
を挿入し、さらに、直径４０ｍｍのメッシュ状フッ素樹
脂コーティングシート２０を積層した。さらに、下面に
はエポキシ樹脂を１５〜５０ｗｔ％塗布してある樹脂付
き３８μｍ厚さのＰＥＴフィルムを積層し、該樹脂付き
ＰＥＴフィルムの下側に該樹脂を介して均熱板である金
属板２（東海アルミ（株）製、アルミ箔０．１ｍｍ）を
接着した。該積層物を５０μｍ厚みのＰＥＴフィルム
１、１０で上下から挟んでオートクレーブ中で１５０
℃、１０ｋｇｆ／ｃｍ2 で１時間加熱、加圧して繊維強
化樹脂成形体を製造した。成形後、直径１０ｍｍの剥離
シート１９および直径４０ｍｍの該メッシュ状フッ素樹
脂コーティングシート２０を取り除くとともに、その真
上にあるＰＥＴフィルム２１も削除した。なお均熱板側
のＰＥＴフィルム１は保護用シートであり、施工時に剥
離可能である。As shown in FIG. 1, a glass fiber cloth prepreg 4 is laminated on the lower surface of the network structure, and a lead wire 15 (Bemex, 0.75 mm) is connected to the anchor portion 8 on the upper surface of the network structure. A glass fiber cloth prepreg 9 having a through-hole 18 having a diameter of 10 mm previously was laminated on the upper part of the anchor portion so as to fix 2 ) (made by Furukawa Electric). Inside the through hole, a fluororesin release sheet 19 having the same diameter as the through hole 18 is provided.
Was inserted, and a mesh-like fluororesin coating sheet 20 having a diameter of 40 mm was further laminated. Further, a 38 μm-thick PET film with a resin coated with an epoxy resin of 15 to 50 wt% is laminated on the lower surface, and a metal plate 2 as a heat equalizing plate is placed below the PET film with the resin via the resin. (Made by Tokai Aluminum Co., Ltd., aluminum foil: 0.1 mm). The laminate is sandwiched between 50 μm-thick PET films 1 and 10 from above and below in an autoclave for 150 minutes.
The mixture was heated and pressurized at 10 ° C. and 10 kgf / cm 2 for 1 hour to produce a fiber-reinforced resin molded product. After molding, the release sheet 19 having a diameter of 10 mm and the mesh-like fluororesin coating sheet 20 having a diameter of 40 mm were removed, and the PET film 21 immediately above the sheet was also removed. The PET film 1 on the heat equalizing plate side is a protective sheet, and can be peeled off during construction.
【００５３】このようにして、１２５Ｗのシート状発熱
体を作製した。該発熱体を床表面材（段谷産業（株）製
床暖房フローリングホットペースＦＧＢ−００８使用）
で覆い、釘打ちして固定し、サーミスタをセンサーとし
て使った温度制御システムを接続し、床材システムに組
み込んだ。上記の床材について発熱試験を行ったところ
環境温度が０、５、１０、１５、２０、２５℃のいずれ
の温度でも床材の表面温度を３０℃に制御できた。電源
供給電線を２ｍｍ／ｍｉｎで引っ張ったところ、２０ｋ
ｇ以上の力でも電極は破壊しなかった。発熱体の集中応
力時の耐荷重を測定したところ４００ＭＰａを有してい
た。該発熱体を２５℃の水中に２４時間浸漬したところ
電極とアルミ均熱材との間の絶縁抵抗は１０ＭΩ以上を
有していた。In this way, a 125 W sheet heating element was manufactured. The heating element was used as a floor surface material (using floor heating flooring hot pace FGB-008 manufactured by Danya Sangyo Co., Ltd.).
It was covered with a nail, fixed by nailing, connected to a temperature control system using a thermistor as a sensor, and incorporated into the flooring system. When a heat generation test was performed on the above floor material, the surface temperature of the floor material could be controlled to 30 ° C. at any environmental temperature of 0, 5, 10, 15, 20, and 25 ° C. When the power supply wire was pulled at 2 mm / min,
The electrode did not break even with a force of more than g. When the withstand load of the heating element at the time of concentrated stress was measured, it was 400 MPa. When the heating element was immersed in water at 25 ° C. for 24 hours, the insulation resistance between the electrode and the aluminum soaking material was 10 MΩ or more.
【００５４】［比較例１］電極部を導電性粘着剤付きの
銅箔片のみとした以外は実施例１と同様に床材システム
を製造した。Comparative Example 1 A floor material system was manufactured in the same manner as in Example 1 except that the electrode portion was made only of a copper foil piece with a conductive adhesive.
【００５５】［比較例２］電極部を樹脂モールディング
しない以外は実施例１と同様に床材システムを製造し
た。Comparative Example 2 A floor material system was manufactured in the same manner as in Example 1 except that the electrode portion was not resin-molded.
【００５６】［比較例３］電極部を導電性粘着剤付きの
銅箔片のみとし、さらに電極部を樹脂モールディングし
ない以外は実施例１と同様に床材システムを製造した。
実施例１、比較例１〜３の床材システムの電源供給電線
を２ｍｍ／ｍｉｎで引っ張ったところ、表１のようにな
った。実施例１以外は電極の強度が弱く２０ｋｇ以下の
力で電極が破壊した。Comparative Example 3 A floor material system was manufactured in the same manner as in Example 1 except that the electrode portion was made of only a copper foil piece with a conductive adhesive and the electrode portion was not resin-molded.
When the power supply wires of the floor material systems of Example 1 and Comparative Examples 1 to 3 were pulled at 2 mm / min, the results were as shown in Table 1. Except for Example 1, the strength of the electrode was weak and the electrode was broken by a force of 20 kg or less.
【００５７】[0057]
【表１】 [Table 1]
【００５８】[0058]
【発明の効果】本発明は、発熱積層体を構成する繊維強
化樹脂プリプレグシートおよび／または樹脂フィルムの
電極部分に金属金網などの表面粗さを有するアンカー部
を設けると共に、該アンカー部の上部に貫通孔が設ける
ことにより、ハンダ付け等で接続された電源供給電線を
樹脂でモールドして発熱体の本体に対し強固に接着する
ことができる。According to the present invention, an anchor portion having a surface roughness such as a metal wire mesh is provided on an electrode portion of a fiber reinforced resin prepreg sheet and / or a resin film constituting a heat generating laminate, and an upper portion of the anchor portion is provided. By providing the through-hole, the power supply wire connected by soldering or the like can be molded with resin and firmly adhered to the main body of the heating element.
【図１】 本発明の発熱体の電極部分の分解斜視図。FIG. 1 is an exploded perspective view of an electrode portion of a heating element according to the present invention.
【図２】 本発明の発熱体の電極部分の断面図。FIG. 2 is a cross-sectional view of an electrode portion of a heating element according to the present invention.
【符号の説明】 １：保護用フィルム，２：均熱材，３：樹脂付き樹脂フ
ィルム，４：貫通孔のない強化繊維プリプレグ，５：非
導電性繊維，６：導電性繊維，７：電極（金属製箔
片），８：アンカー部（金属金網），９：リード線貫通
孔を開けた繊維強化プリプレグ，１０：リード線貫通孔
を開けた樹脂フィルム，１１：断熱材，１２：非導電性
樹脂枠（ブッシング），１３：モールド樹脂，１４：ハ
ンダ，１５：リード線，１６：過熱防止装置，１７：網
目状構造体，１８：貫通孔，１９：剥離フィルム，２
０：剥離フィルム，２１：成形後に除去する樹脂フィル
ム部分，２２：繊維強化プリプレグ上に形成された凹
凸。[Description of Signs] 1: Protective film, 2: Heat equalizing material, 3: Resin film with resin, 4: Reinforcing fiber prepreg without through hole, 5: Non-conductive fiber, 6: Conductive fiber, 7: Electrode (Metal foil piece), 8: anchor part (metal wire mesh), 9: fiber reinforced prepreg with lead wire through hole, 10: resin film with lead wire through hole, 11: heat insulating material, 12: non-conductive Resin frame (bushing), 13: mold resin, 14: solder, 15: lead wire, 16: overheating prevention device, 17: mesh-like structure, 18: through hole, 19: release film, 2
0: release film, 21: resin film portion to be removed after molding, 22: unevenness formed on fiber reinforced prepreg.
フロントページの続き Ｆターム(参考） 3K034 AA09 AA16 BA14 BB13 BB14 BC03 BC13 CA02 CA17 CA18 CA25 CA26 HA04 HA07 HA09 HA10 3K092 PP05 QA05 QB16 QB65 QB70 QC02 QC20 QC25 QC42 QC52 QC55 RF02 RF14 RF19 TT27 VV28 4F100 AB33 BA03 BA05 BA07 BA13 CB00 GB08 GB41 JK06 Continuing on the front page F term (reference) 3K034 AA09 AA16 BA14 BB13 BB14 BC03 BC13 CA02 CA17 CA18 CA25 CA26 HA04 HA07 HA09 HA10 3K092 PP05 QA05 QB16 QB65 QB70 QC02 QC20 QC25 QC42 QC52 QC55 RF02 RF14 BA19 FB27 V10033 GB08 GB41 JK06
Claims (4)
び／または下面に積層される繊維強化プリプレグシート
および／または樹脂フィルムを積層成分として含む発熱
積層体であって、該電極には表面粗さを有するアンカー
部が設けられており、該電極側に配置された該繊維強化
プリプレグシートおよび／または樹脂フィルムはアンカ
ー部上部に貫通孔が設けられ、該アンカー部に電源供給
線が接続され、該貫通孔に樹脂がモールドされたことを
特徴とする電極部構造を有する発熱体。A heating laminate comprising a heating element having an electrode portion and a fiber-reinforced prepreg sheet and / or a resin film laminated on an upper surface and / or a lower surface thereof as a laminating component, wherein the electrode has a surface roughened surface. An anchor portion having a thickness is provided, the fiber-reinforced prepreg sheet and / or resin film disposed on the electrode side is provided with a through hole in an upper portion of the anchor portion, and a power supply line is connected to the anchor portion, A heating element having an electrode structure, wherein a resin is molded in the through hole.
の交点を接合してなる網目状構造体であることを特徴と
する請求項１に記載された電極部構造を有する発熱体。2. A heating element having an electrode part structure according to claim 1, wherein the heating element is a mesh structure formed by joining intersections of non-conductive fibers and conductive fibers.
接合してなる発熱体用の網目状構造体の両端において、
表面粗さを有するアンカー部が積層され、該アンカー部
に発熱体外部から通電できるように貫通孔を加工した繊
維強化樹脂プリプレグシートが積層され、さらにこの貫
通孔を加工した繊維強化樹脂プリプレグシート面に該貫
通孔以上の半径の貫通孔を加工した樹脂フィルムが積層
成形され、該貫通孔を加工した部分に樹脂がモールドさ
れたことを特徴とする請求項２に記載された電極部構造
を有する発熱体。3. At both ends of a mesh structure for a heating element formed by joining intersections of non-conductive fibers and conductive fibers,
An anchor portion having a surface roughness is laminated, a fiber reinforced resin prepreg sheet having a through-hole processed so that electricity can be supplied from outside the heating element is laminated on the anchor portion, and a fiber reinforced resin prepreg sheet surface further processed with the through hole A resin film having a through-hole having a radius greater than the through-hole is laminated and formed, and a resin is molded in a portion where the through-hole has been processed, having an electrode portion structure according to claim 2. Heating element.
造を有する発熱体、繊維強化プリプレグ、均熱材および
断熱材を積層成分として含む床暖房用電熱ボード。4. An electric heating board for floor heating, comprising the heating element having the electrode structure according to claim 1, a fiber reinforced prepreg, a soaking material and a heat insulating material as a laminated component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31832898A JP3314867B2 (en) | 1998-10-22 | 1998-10-22 | Heating laminate and electric heating board for floor heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31832898A JP3314867B2 (en) | 1998-10-22 | 1998-10-22 | Heating laminate and electric heating board for floor heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000133422A true JP2000133422A (en) | 2000-05-12 |
| JP3314867B2 JP3314867B2 (en) | 2002-08-19 |
Family
ID=18097956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31832898A Expired - Fee Related JP3314867B2 (en) | 1998-10-22 | 1998-10-22 | Heating laminate and electric heating board for floor heating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3314867B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004520989A (en) * | 2000-11-27 | 2004-07-15 | ブリード オートモティブ テクノロジィ、インコーポレイテッド | Heated steering wheel |
| JP2007071473A (en) * | 2005-09-08 | 2007-03-22 | Nippon Oil Corp | Electric heating board for floor heating and floor heating system using the same |
| WO2013128682A1 (en) * | 2012-02-29 | 2013-09-06 | 三菱重工業株式会社 | Fiber-reinforced plastic heating element and wind power generating device comprising said heating element |
| CN103687107A (en) * | 2012-09-14 | 2014-03-26 | 新专投资股份有限公司 | Heating device of electric blanket, manufacturing method thereof and heating system |
| JP2018204260A (en) * | 2017-06-01 | 2018-12-27 | 理研興業株式会社 | Snow melting system |
| JP2019111656A (en) * | 2017-12-20 | 2019-07-11 | 住友ベークライト株式会社 | Structure and interior material |
| CN110062484A (en) * | 2019-03-08 | 2019-07-26 | 泉州洛江同满机械设计有限公司 | A kind of graphene electrothermal film tie point pretreatment unit ensureing that the later period is thermally conductive |
| CN110072302A (en) * | 2019-04-26 | 2019-07-30 | 江苏骏源新材料有限公司 | Far infrared carbon fiber heating board and preparation method thereof |
-
1998
- 1998-10-22 JP JP31832898A patent/JP3314867B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004520989A (en) * | 2000-11-27 | 2004-07-15 | ブリード オートモティブ テクノロジィ、インコーポレイテッド | Heated steering wheel |
| JP2007071473A (en) * | 2005-09-08 | 2007-03-22 | Nippon Oil Corp | Electric heating board for floor heating and floor heating system using the same |
| WO2013128682A1 (en) * | 2012-02-29 | 2013-09-06 | 三菱重工業株式会社 | Fiber-reinforced plastic heating element and wind power generating device comprising said heating element |
| JP2013178999A (en) * | 2012-02-29 | 2013-09-09 | Mitsubishi Heavy Ind Ltd | Fiber-reinforced plastic heat generator and wind power generation apparatus equipped with heat generator |
| CN103687107A (en) * | 2012-09-14 | 2014-03-26 | 新专投资股份有限公司 | Heating device of electric blanket, manufacturing method thereof and heating system |
| JP2018204260A (en) * | 2017-06-01 | 2018-12-27 | 理研興業株式会社 | Snow melting system |
| JP2019111656A (en) * | 2017-12-20 | 2019-07-11 | 住友ベークライト株式会社 | Structure and interior material |
| CN110062484A (en) * | 2019-03-08 | 2019-07-26 | 泉州洛江同满机械设计有限公司 | A kind of graphene electrothermal film tie point pretreatment unit ensureing that the later period is thermally conductive |
| CN110072302A (en) * | 2019-04-26 | 2019-07-30 | 江苏骏源新材料有限公司 | Far infrared carbon fiber heating board and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3314867B2 (en) | 2002-08-19 |
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