JPS61248385A - Heater unit - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は電気カーペット、保温マット等に使用されるコ
ード状の発熱作用をする感熱線を蛇行配設した接着可能
なヒータユニットに関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an adhesive heater unit that is used in electric carpets, heat-retaining mats, etc. and has a cord-like heat-sensitive wire arranged in a meandering manner.

従来の技術 一般に電気カーペットや保温マント等に使用する面状発
熱体としてのヒータユニットには金属箔を所定のパター
ンにエツチングして両面に絶縁フィルムと接着フィルム
を多層ラミネートしたフィルムヒータユニットと、コー
ド状の発熱作用をする感熱線を蛇行配列した後接着フィ
ルムに融着固定したコード状のヒータユニットとがあり
、それぞれマット地と表地との間に配設して加熱加圧に
より一体化して床面状採暖具として使用されている。Conventional technology Generally, heater units as planar heating elements used in electric carpets, thermal cloaks, etc. include film heater units that are made by etching metal foil into a predetermined pattern and laminating multiple layers of insulating film and adhesive film on both sides, and cords. There is a cord-shaped heater unit in which heat-sensitive wires that generate heat are arranged in a meandering arrangement and then fused and fixed to an adhesive film.The cord-shaped heater unit is placed between the mat material and the outer material, and is integrated by heating and pressurizing to create a floor. It is used as a surface heating device.

ところがフィルムヒータユニットを使用した床面状採暖
具は誤まって鋭利な刃物で刺された場合に感電や動作不
能になり易いこと、冬期以外には小さく折りたたんで収
納しにくいこと、製造コストが高くつくこと等からコー
ド状のヒータユニットを使用した床面状採暖具が圧倒的
に多く使用されている。However, floor heating devices that use film heater units are susceptible to electric shock or become inoperable if accidentally stabbed with a sharp knife, are difficult to fold and store outside of winter, and are expensive to manufacture. For this reason, floor heating devices using cord-shaped heater units are overwhelmingly used.

従来、コード状の発熱作用をする感熱線を用いたヒータ
ユニットは特公昭５９−３０４０７号公報、実公昭５８
−３３６６７号公報の内で開示されており、その代表例
を第６図で詳述すると、１４は一対の電極間にポリアミ
ド樹脂の感熱層を有してそれら全体を塩化ビニルの絶縁
外被１５で被覆径最外かくに融着被覆層１６を被覆して
なる感熱線、１７は蛇行配設した感熱線１４を固定しか
つ床面状採暖具としてマット地と表地とを接着一体化す
る機能を有する接着フィルムである。接着フィルム１７
はマット地と表地とを加熱加圧により短時間で一体化さ
せかつ感熱線１４を熱変形させない為に１００〜１３０
℃の温度領域で融点を有する結晶性樹脂が適し９例えば
ポリエチレン、共重合ナイロン、共重合ポリエステル等
が好ましい。また蛇行配列した感熱線１４を接着フィル
ム１７に固定する為に、接着フィルム１７と同系材質の
融着被覆層１６が感熱線１４の最外かくに予め施されて
おり、感熱線１４と接着フィルム１７との接触部で接着
フィルム１７９Ｉｌｌから加熱加圧することにより、融
着被覆層１６と接着フィルム１７とが溶融して冷却すれ
ばヒータユニットが得られる。Conventionally, heater units using heat-sensitive wires that generate heat in the form of cords are disclosed in Japanese Patent Publication No. 59-30407 and Japanese Utility Model Publication No. 58.
This is disclosed in Japanese Patent No. 33667, and a representative example thereof is detailed in FIG. The heat-sensitive wire 17 is a heat-sensitive wire coated with a fusion-bonded coating layer 16 at the outermost coating diameter, and 17 is a function of fixing the heat-sensitive wire 14 arranged in a meandering manner and bonding and integrating the mat material and the outer material as a floor heating device. It is an adhesive film with Adhesive film 17
is 100 to 130 in order to integrate the matte material and the outer material in a short time by heating and pressurizing and to prevent thermal deformation of the heat-sensitive wire 14.
A crystalline resin having a melting point in the temperature range of 9° C. is suitable; for example, polyethylene, copolymerized nylon, copolymerized polyester, etc. are preferred. Further, in order to fix the meandering heat-sensitive wires 14 to the adhesive film 17, a fusion coating layer 16 made of the same material as the adhesive film 17 is applied in advance to the outermost part of the heat-sensitive wires 14, and the heat-sensitive wires 14 and the adhesive film By heating and pressurizing the adhesive film 179Ill at the contact portion with the adhesive film 17, the fusion coating layer 16 and the adhesive film 17 are melted and cooled to obtain a heater unit.

発明が解決しようとする問題点 特公昭５９−３０４０７号公報及び実公昭５８−３３６
６７号公報で開示されているヒータユニットによれば。Problems to be solved by the invention Japanese Patent Publication No. 59-30407 and Utility Model Publication No. 58-336
According to the heater unit disclosed in Publication No. 67.

蛇行状に配設したコード状の感熱線を接着フィルム上に
融着固定したものであるから、複数本の感熱線であって
も人手がかからず全自動で蛇行配役及び融着固定できる
ことから量産性に優れ、かつマット地と表地との間に得
られたフィルムユニットを介在させて加熱加圧すること
により少ない構成材料にもかかわらず確実な接合体が得
られ、その製造法は技術的にも画期的方法であり長年そ
の製造法により性能が優れ、かつ安価な床面状採暖具を
多数製造し、その産業上の効果は大なるものがある。Since cord-shaped heat-sensitive wires arranged in a serpentine pattern are fused and fixed on an adhesive film, even multiple heat-sensitive wires can be meandered and fused and fixed in a fully automated manner without requiring any human intervention. It has excellent mass productivity, and by interposing the obtained film unit between the matte material and the outer material and applying heat and pressure, a reliable bonded body can be obtained despite the small amount of constituent materials, and the manufacturing method is technologically advanced. This is an innovative method, and for many years it has produced a large number of low-cost floor heating devices with excellent performance, and its industrial effects have been great.

しかしながら、従来のヒータユニットは以下に示す問題
点があり、その改善が望まれていた。However, conventional heater units have the following problems, and improvements have been desired.

＋１）　　接着フィルム及び融着被覆層は１００〜１３
０℃の融点を有し１両者を融着固定するには１６０〜１
８０℃の高温で１〜１０秒間加圧しなければならない。+1) Adhesive film and fusion coating layer: 100-13
It has a melting point of 0°C and is 160 to 1 to fuse and fix both parts.
Pressure must be applied at a high temperature of 80°C for 1 to 10 seconds.

融着スピードを上げるには温度を１６０〜１８０℃の高
温にして加圧しなければならないことから、感熱線の絶
縁外被を変形させてしまい耐圧不良になる恐れを有して
いた。In order to increase the fusing speed, the temperature must be raised to a high temperature of 160 to 180° C. and pressure must be applied, which may deform the insulating jacket of the heat-sensitive wire and result in poor pressure resistance.

（２）融着被覆層はポリエチレン、共重合ナイロン。(2) The fusion coating layer is polyethylene and copolymerized nylon.

共重合ポリエステル等の結晶性樹脂であることから、冬
期の気温が低い時には硬くなって柔軟性を失い蛇行配設
の作業がしにくくなり、配役効率が低下する。Since it is a crystalline resin such as copolymerized polyester, it becomes hard and loses flexibility when the temperature is low in winter, making it difficult to perform meandering arrangement and reducing casting efficiency.

（３）　　一対の電極間にポリアミド樹脂の感熱層を設
けて感熱層の温度−インピーダンス特性を利用して１本
のコード状発熱体で発熱作用と温度検知作用を兼ねたヒ
ータユニットを作った場合。(3) A case in which a heat-sensitive layer of polyamide resin is provided between a pair of electrodes, and a heater unit that has both heat-generating and temperature-sensing functions is created using a single cord-shaped heating element by utilizing the temperature-impedance characteristics of the heat-sensitive layer. .

感熱線の最外かくに設けた融着被覆層が感熱層の吸湿し
た水分の脱湿を阻害する為、床面状採暖具として長期間
未使用のものを通電しても所定の温度に昇温しない欠点
があった。The fusion coating layer provided on the outermost part of the heat-sensitive wire prevents the moisture absorbed by the heat-sensitive layer from being dehumidified, so even if a floor heating device that has not been used for a long time is energized, it will not rise to the specified temperature. It had the drawback of not getting warm.

すなわち、ポリアミド樹脂の感熱層は吸湿することによ
りインピーダンスが低下し、制御回路側からみると温度
が上った状態と等節回路になることから１発熱線に流す
電流を小さく制御してしまう。ところが同じポリアミド
系感熱層でも融着性被覆層がなければ、わずかの通電発
熱によって容易に脱湿してしまうので、実用上問題ない
程度の速熱性が得られる。このことから、融着性被覆層
があるために発熱作用と温度検知作用を兼ねた一本のコ
ード状の感熱線でヒータユニットができず。That is, the impedance of the heat-sensitive layer of polyamide resin decreases as it absorbs moisture, and when viewed from the control circuit side, the current flowing through one heating wire is controlled to be small because the circuit becomes an equinodal circuit when the temperature rises. However, even if the same polyamide-based heat-sensitive layer does not have a fusible coating layer, it will easily dehumidify due to a slight amount of heat generated by electricity, so that it can achieve a heat-fast property that does not cause any practical problems. Because of this, because of the fusible coating layer, a heater unit cannot be created with a single cord-shaped heat-sensitive wire that has both heat generation and temperature detection functions.

より高い信頼性とより安価な床面状採暖具を得ることが
できなかった。It has not been possible to obtain a floor heating device that is more reliable and less expensive.

問題点を解決する為の手段 本発明は従来の欠点を解決する為に長期間かつ鋭意検討
の結果なされたもので、接着フィルムが１００〜１３０
℃に主融点をもつポリオレフィン樹脂を主成分とする構
造接着層と構造接着層よりも低い８０〜１２０℃に主融
点あるいは軟化点を有するカルボニル基を有する樹脂の
仮付接着層との複合層とし、一方が発熱作用をする一対
の金属導体の間にポリアミド系樹脂の感熱層を設けてそ
れら全体を塩化ビニル系樹脂の絶縁外被で被覆した感熱
線とし、接着フィルムと感熱線とを接着フィルム側から
加熱加圧することにより絶縁外被と仮付接着層とを融着
固定してヒータユニットを得るものとした。Means for Solving the Problems The present invention was developed as a result of long-term and intensive studies in order to solve the drawbacks of the conventional technology.
A composite layer consisting of a structural adhesive layer mainly composed of a polyolefin resin having a main melting point at ℃ and a tack adhesive layer made of a resin having a carbonyl group and having a main melting point or softening point at 80 to 120 ℃ lower than that of the structural adhesive layer. A heat-sensitive wire is formed by providing a heat-sensitive layer made of polyamide resin between a pair of metal conductors, one of which generates heat, and covering the entirety with an insulating jacket made of vinyl chloride-based resin. By applying heat and pressure from the side, the insulating jacket and the temporary adhesive layer were fused and fixed to obtain a heater unit.

作用 接着フィルムの仮付接着層が構造接着層の主融点あるい
は軟化点よりも低くしてあり、材料組成的に絶縁外被と
接着し易い配合にしであることから、絶縁外被の熱変形
が著しく起らない１００〜１４０℃の温度で加熱加圧し
て融着できる。Function The temporary adhesive layer of the adhesive film is lower than the main melting point or softening point of the structural adhesive layer, and the material composition is such that it easily adheres to the insulating jacket, so thermal deformation of the insulating jacket is prevented. Fusion can be performed by heating and pressurizing at a temperature of 100 to 140° C. without causing any significant fusion.

また感熱線の最外かくけ塩化ビニルの絶縁外被であるこ
とから、感熱線の硬さが著しい温度依存性を示さず常に
柔軟性があり、感熱層の脱湿の阻害をしない。Furthermore, since the outermost part of the heat-sensitive wire is an insulating jacket made of vinyl chloride, the hardness of the heat-sensitive wire does not show significant temperature dependence and is always flexible, so that it does not inhibit the dehumidification of the heat-sensitive layer.

実施例 以下本発明の一実施例につき図面に従い詳述する。Example An embodiment of the present invention will be described below in detail with reference to the drawings.

第１図は本発明のヒータユニット１０の要部断面を示し
たものであり、１は１００〜１３０℃に主融点を有する
ポリオレフィン樹脂を主成分とする構造接着層２と構造
接着層２の主融点あるいは軟化点より低いカルボニル基
を有する樹脂例えばポリウレタン、共重合ポリエステル
、酢酸ビニル等の少なくともいずれか一種類からなる仮
付接着層６との複合層とからなる接着フィルム、４は第
２図で示す感熱線、９は仮付接着層３と感熱線４とを融
着固定する際に必要でかつ電気絶縁作用を果す塩化ビニ
ルからなる絶縁外被である。FIG. 1 shows a cross section of the main parts of the heater unit 10 of the present invention, and 1 shows a structural adhesive layer 2 mainly composed of a polyolefin resin having a main melting point of 100 to 130°C, and a main part of the structural adhesive layer 2. An adhesive film 4 is shown in FIG. 2, consisting of a composite layer with a temporary adhesion layer 6 made of at least one resin having a carbonyl group lower than the melting point or softening point, such as polyurethane, copolymerized polyester, vinyl acetate, etc. The heat-sensitive wire 9 shown is an insulating jacket made of vinyl chloride that is necessary when fusing and fixing the temporary adhesion layer 3 and the heat-sensitive wire 4 and serves as an electrical insulator.

第２図は感熱線の構造を示したものであり、５はポリエ
ステル、耐熱ポリアミド等からなる芯糸。Figure 2 shows the structure of the heat-sensitive wire, and 5 is a core yarn made of polyester, heat-resistant polyamide, etc.

６は芯糸５の外周囲にスパイラル状に巻着された発熱作
用をする銅、銅合金等からなる金属導体。Reference numeral 6 denotes a metal conductor made of copper, copper alloy, etc., which is spirally wound around the outer periphery of the core yarn 5 and has a heat generating effect.

７は芯糸５及び金属導体６の外周囲表面に被覆した温度
によってインピーダンスが負の傾きで著しく変化しかつ
１５０〜１９０℃に主融点を有するポリアミド樹脂例え
ばナイロン１）．ナイロン１２．共重合ナイロン１）等
の少なくともいずれか一種類からなる感熱層、８は感熱
層７の外周囲にスパイラル状に巻着して感熱層７の温度
によるインピーダンスの変化を漏洩電流として検出する
温度検知作用の銅、銅合金等からなる金属導体、９は感
熱層７及び金属導体８の外周囲に被覆した塩化ビニル樹
脂の絶縁外被である。7 is a polyamide resin, such as nylon 1), which is coated on the outer peripheral surface of the core thread 5 and the metal conductor 6 and whose impedance changes significantly with a negative slope depending on the temperature and whose main melting point is between 150 and 190°C. Nylon 12. A heat-sensitive layer 8 made of at least one type of copolymerized nylon 1) is wound spirally around the outer periphery of the heat-sensitive layer 7 to detect a change in impedance due to the temperature of the heat-sensitive layer 7 as a leakage current. The metal conductor 9 is made of copper, copper alloy, etc., and 9 is an insulating jacket made of vinyl chloride resin that covers the outer periphery of the heat-sensitive layer 7 and the metal conductor 8.

第６図は本発明のヒータユニット１０を適用した床面状
採暖具の要部断面を示したもので、１は接着フィルム、
４は接着フィルム１に予め蛇行配設し融着固定してなる
感熱線、１）は羊毛、ポリエステル、ナイロン、アクリ
ル等の繊維を二一ドルノ（ンチ加工してなるマント地、
１２はポリエステル。FIG. 6 shows a cross section of a main part of a floor heating device to which the heater unit 10 of the present invention is applied, in which 1 is an adhesive film;
4 is a heat-sensitive wire that is preliminarily arranged in a meandering manner on an adhesive film 1 and fused and fixed;
12 is polyester.

ナイロン、アクリル等の繊維を二一ドルノくンチ加工あ
るいはタクト加工してなる表地であり、マット地１）．
ヒータユニット１０９表地１２の順に載置した後三者を
１２０〜１６０℃の温度で加熱加圧することによって接
着フィルム１を溶融させて次に冷却することにより表地
１２とマント地１）とを一体接合させる。The outer material is made of fibers such as nylon or acrylic that have been processed by punching or tact processing, and are matte 1).
After placing the heater unit 109 and the outer fabric 12 in this order, the adhesive film 1 is melted by heating and pressurizing the three at a temperature of 120 to 160°C, and then the outer fabric 12 and the cloak fabric 1) are integrally joined by cooling. let

第４図は第３図のマント地１）と表地１２との界面の要
部断面を示したもので、１）はマント地、１２は表地、
２はマント地１）と表地１２とを接着一体化する構造接
着層、３はマント地１）の表層に含浸した仮付接着層を
示す。Figure 4 shows a cross section of the main part of the interface between the cloak fabric 1) and the outer fabric 12 in Figure 3, where 1) is the cloak fabric, 12 is the outer fabric,
Reference numeral 2 indicates a structural adhesive layer that adheres and integrates the cloak fabric 1) and the outer fabric 12, and 3 indicates a tacking adhesive layer impregnated into the surface layer of the cloak fabric 1).

第５図は本発明のヒータユニットの他の実施例を示した
ものであり、４は最外かくに塩化ビニルの絶縁外被を被
覆してなる感熱線、１３はアルミニウム箔、不織布、寒
冷紗９紙等からなる芯材、２は芯材１２の両面に設けた
構造接着層、３は片面の構造接着層２の表面に設は感熱
線４の絶縁外被９と加熱加圧により接着するカルボニル
基を有する樹脂例えばポリウレタン、共重合ポリエステ
ル。FIG. 5 shows another embodiment of the heater unit of the present invention, in which numeral 4 is a heat-sensitive wire whose outermost layer is covered with an insulating jacket made of vinyl chloride, numeral 13 is aluminum foil, non-woven fabric, cheesecloth 9. A core material made of paper or the like, 2 is a structural adhesive layer provided on both sides of the core material 12, and 3 is a carbonyl layer provided on the surface of the structural adhesive layer 2 on one side, which is bonded to the insulating jacket 9 of the heat-sensitive wire 4 by heating and pressing. resins having groups such as polyurethane, copolymerized polyester.

酢酸ビニル等の少なくともいずれ一種類からなる仮付接
着層である。The temporary adhesion layer is made of at least one kind of vinyl acetate or the like.

次に前記構成における作用を説明する。Next, the operation of the above configuration will be explained.

接着フィルム１が融点の高い構造接着層２と構造接着層
２よりも融点あるいは軟化点の低い仮付接着層ろとの複
合層にしたことにより、蛇行配列した感熱線４の絶縁外
被９と仮付接着層６とを構造接着層２の方向から加熱加
圧によって融着固定した際、構造接着層２は著しい変形
をしないことから熱収縮のないヒータユニット１０が得
られる他に、密度が低く厚い断熱性の優れたマント地１
）と密度が高く薄くて熱伝導の良い表地１２とを加熱加
圧により接着フィルム１を溶融して接着一体化する際に
低融点あるいは低軟化点の仮付接着層６が先に浴融して
多孔質のマント地１）の表層に含浸して次に構造接着層
２が溶融することから構造接着層２が表地１２とマント
地１）に同程度の接着強度を発揮する。By making the adhesive film 1 a composite layer of a structural adhesive layer 2 with a high melting point and a tacking adhesive layer with a lower melting point or softening point than the structural adhesive layer 2, the insulating jacket 9 of the heat-sensitive wire 4 arranged in a meandering manner When the temporary adhesion adhesive layer 6 is fused and fixed from the direction of the structural adhesive layer 2 by heat and pressure, the structural adhesive layer 2 does not undergo significant deformation. Low and thick cloak fabric with excellent insulation properties 1
) and the outer material 12, which is high in density, thin, and has good thermal conductivity, are bonded together by melting the adhesive film 1 by applying heat and pressure. Since the structural adhesive layer 2 is impregnated into the surface layer of the porous cloak fabric 1) and then melted, the structural adhesive layer 2 exhibits the same adhesive strength to the outer fabric 12 and the cloak fabric 1).

構造用接着層２は１００〜１３０℃の主融点を有する結
晶性樹脂であれば良く、ポリオレフィン系樹脂でポリエ
チレンの単体、ポリエチレンと酢酸ビニルの共重合体あ
るいは混合体、ポリエチレンとエチレンプロピレンとの
共重合体あるいは混合体等が適し、その厚みは１０８〜
Ｉ］、２ｍｍ好ましくは０．１〜１）１５　ｍｍが良好
な接着強度及び取扱い易いヒータユニット１０が得られ
る。The structural adhesive layer 2 may be any crystalline resin having a main melting point of 100 to 130°C, and may be a polyolefin resin such as simple polyethylene, a copolymer or mixture of polyethylene and vinyl acetate, or a copolymer of polyethylene and ethylene propylene. Polymers or mixtures are suitable, and the thickness is 108 ~
I], 2 mm, preferably 0.1 to 1) 15 mm, provides a heater unit 10 with good adhesive strength and easy handling.

仮付接着層３の目的は感熱線４の絶縁外被９と絶縁外被
９が熱変形しない低温の加熱加圧で接着させる必要があ
ることから、絶縁外被９の塩化ビニルの材質と相性の良
いことが不可欠であり、その為にはカルボニル基（ｃ＝
ｏ　）を有する樹脂が適している。カルボニル基を有す
る樹脂の中で塩化ビニルと強い接着強度を発揮する樹脂
としては８０〜１２０℃に融点を有する共重合ポリエス
テル、７０〜９０℃に融点を有する酢酸ビニル、８０〜
１２０℃に軟化点を有するポリウレタン等があり、これ
らを単一の層でなく、多層の複合物として仮付接着層６
を形成しても良い。The purpose of the temporary adhesion layer 3 is that it is compatible with the vinyl chloride material of the insulation jacket 9 because it is necessary to bond the insulation jacket 9 of the heat-sensitive wire 4 with the insulation jacket 9 by heating and pressing at a low temperature that will not cause thermal deformation. It is essential that the carbonyl group (c=
o) are suitable. Among resins having carbonyl groups, resins that exhibit strong adhesive strength with vinyl chloride include copolymerized polyester with a melting point of 80 to 120°C, vinyl acetate with a melting point of 70 to 90°C, and 80 to 90°C.
There are polyurethanes, etc. that have a softening point at 120°C, and these are not used as a single layer but as a multilayer composite as a temporary adhesion layer 6.
may be formed.

また仮付接着層６の樹脂層は絶縁外被９との接着性を向
上するさせる為に、上述した樹脂を主成分とし粘着付与
剤仮えば低分子のワックスやポリエステル系の滑剤ある
いは可塑剤を０．１〜１０重量％添加してもよい。更に
は絶縁外被９の中に粘着付与剤を添加すれば接着強度の
著しい向上が望める。In addition, in order to improve the adhesion with the insulating jacket 9, the resin layer of the temporary adhesion layer 6 contains the above-mentioned resin as a main component, and contains a tackifier, such as a low-molecular wax, a polyester-based lubricant, or a plasticizer. It may be added in an amount of 0.1 to 10% by weight. Furthermore, if a tackifier is added to the insulating jacket 9, the adhesive strength can be significantly improved.

仮付接着層６を構造接着層２と複合化する方法としては
、予め構造接着層２を作成しておき仮付接着層６の樹脂
を押出溶融でフィルム化しながら構造接着層２と貼合わ
せる方法、構造接着層２と仮付接着層５とをそれぞれフ
ィルムに作成しておき両者をバインダー例えばアクリル
系接着剤で貼合わせる方法、あるいは予め構造接着層２
をフィルムに作成して仮付接着層乙になる樹脂を溶剤で
溶解させた液状態を塗布乾燥させる方法等があり。A method for combining the tacking adhesive layer 6 with the structural adhesive layer 2 is a method in which the structural adhesive layer 2 is created in advance, and the resin of the tacking adhesive layer 6 is formed into a film by extrusion melting and then laminated with the structural adhesive layer 2. Alternatively, the structural adhesive layer 2 and the temporary adhesive layer 5 may be prepared as films and then bonded together using a binder such as an acrylic adhesive, or the structural adhesive layer 2 may be prepared in advance.
There are methods such as creating a film and applying and drying a liquid state in which the resin that will become the tacking adhesive layer is dissolved in a solvent.

その厚みは絶縁外被９との接着強度を確保する目的とマ
ント地１）に含浸して所定の接着強度を発揮させる目的
とから、　　０．０１〜α０８ｒｒ１ｍより好ましくは
［１，０３〜０．０５ｍｍが適しテイル。The thickness is preferably [1,03 to 0.0 m] from 0.01 to α08rr1m for the purpose of ensuring adhesive strength with the insulating jacket 9 and for the purpose of impregnating the cloak fabric 1) to exhibit a predetermined adhesive strength. 05mm is suitable tail.

接着フィルム１は第１図に示す如く構造接着層２と仮付
接着層３との二層構造と第５図に示す芯材１３の両面に
構造接着層２を設は更に片面の構造接着層２の表面に仮
付接着層３を設けたものがあるが、この他に芯材１３の
一方の面に構造接着層２他方の面にＱ、０５〜０．１５
　ｍｍの厚さの仮付接着層６を設けたものであってもよ
い。芯材１３に０．０１〜ｃＬ０３画のアルミニウム箔
を用いれば感熱線４から発生した熱を均等に拡散させる
ことができる。また芯材１ろを使用すれば構造接着層２
と仮付接着層６とが貼合わせにくい材質の組合せであっ
ても多層化できる。The adhesive film 1 has a two-layer structure consisting of a structural adhesive layer 2 and a temporary adhesive layer 3 as shown in FIG. 1, and a structural adhesive layer 2 on both sides of a core material 13 as shown in FIG. 5. There is one in which a temporary adhesive layer 3 is provided on the surface of the core material 13, but in addition to this, there is a structure adhesive layer 2 on one surface of the core material 13 and Q, 05 to 0.15 on the other surface.
A temporary adhesion layer 6 having a thickness of mm may be provided. If aluminum foil with a size of 0.01 to cL03 is used as the core material 13, the heat generated from the heat-sensitive wire 4 can be evenly diffused. Also, if you use core material 1, you can use structural adhesive layer 2.
Even if the material and the temporary adhesion layer 6 are a combination of materials that are difficult to bond together, they can be multilayered.

接着フィルム１と感熱線４との融着方法を具体的に述べ
ると次のようになる。The method of fusing the adhesive film 1 and the heat-sensitive wire 4 will be specifically described as follows.

感熱線４を配列板上に設けた固定ビンに沿って蛇行配列
し１次にこれらの上方面に接着フィルム１を載置し１次
の工程で上方から１００〜１４０℃に温度された熱板を
感熱線４と接着フィルム１とが重なっている全面あるい
は部分に１〜１０秒間加圧させて仮付接着層３を軟化溶
融させて絶縁外被９との接着を行う。この際に加熱する
温度が構造接着層２の融点よりも低ければ熱板を接着フ
ィルム１に直付圧着してもよく、構造接着層２の融点よ
りも高い場合は非貼着性のセパレートシートを介して熱
圧着すれば、感熱線４が接着フィルム１の面に蛇行配列
状に融着固定されてヒータユニット１０が得られ、絶縁
外被９の変形や割れが生じないので耐圧不良等起らない
。Heat-sensitive wires 4 are arranged in a meandering manner along fixed bins provided on an array plate, and then an adhesive film 1 is placed on the upper surface of these wires, and in the first step, the heat plate is heated to 100 to 140°C from above. is applied to the entire surface or the portion where the heat-sensitive wire 4 and the adhesive film 1 overlap for 1 to 10 seconds to soften and melt the tack adhesive layer 3, thereby adhering it to the insulating jacket 9. If the temperature to be heated at this time is lower than the melting point of the structural adhesive layer 2, a hot plate may be directly pressure bonded to the adhesive film 1; if the heating temperature is higher than the melting point of the structural adhesive layer 2, a non-adhesive separate sheet may be used. By thermocompression bonding, the heat-sensitive wires 4 are fused and fixed to the surface of the adhesive film 1 in a meandering arrangement to obtain the heater unit 10, and the insulating jacket 9 is not deformed or cracked, so there is no possibility of pressure resistance defects, etc. No.

感熱線４は吸湿によってインピーダンスの影響を受ける
ポリアミド樹脂の感熱層７を有しているが、その外周囲
に塩化ビニルの絶縁外被９のみで被覆している為、脱湿
し易いことから床面状採暖具としてシーズン始めに通電
しても比較的速く昇温することができる。The heat-sensitive wire 4 has a heat-sensitive layer 7 made of polyamide resin whose impedance is affected by moisture absorption, but since the outer periphery of the heat-sensitive layer 7 is covered only with an insulating jacket 9 made of vinyl chloride, it is easy to dehumidify, so it cannot be placed on the floor. As a planar heating device, it can raise the temperature relatively quickly even when energized at the beginning of the season.

また感熱／１）７は通常の温度制御をする際のサーミス
タとしての機能と、外部要因によって誘起される異常状
態例えば制御回路の素子が故障により動作不能になった
場合とか床面状採暖具が石油ストーブや別の発熱体によ
って異常に過熱された場合、火災や人身やけど等の二次
災害に波及する前に発熱線に流れる電流を遮断する機能
を有する。In addition, heat sensitive/1) 7 functions as a thermistor during normal temperature control, and in abnormal situations induced by external factors, such as when a control circuit element becomes inoperable due to a failure, or when a floor heating device is In the event of abnormal overheating caused by a kerosene heater or other heating element, it has the function of cutting off the current flowing through the heating wire before it spreads to secondary disasters such as fire or personal burns.

すなわち、異常温度の状態になった場合、感熱層７は１
５０〜１９０℃で溶融したり著しくインピーダンスが低
下する為、金属導体６，８間に短絡電流や大きな漏洩電
流が流れることから、これらの電流を金属導体８が検知
して保安回路を動作させて金属導体６に流れる発熱電流
を遮断する。That is, when the temperature becomes abnormal, the heat sensitive layer 7
Since it melts at 50 to 190°C and its impedance drops significantly, short circuit currents and large leakage currents flow between the metal conductors 6 and 8, so the metal conductor 8 detects these currents and activates the safety circuit. The heating current flowing through the metal conductor 6 is cut off.

本実施例では発熱作用と温度検知作用を１本の感熱線が
兼ねているが９本発明はこれに限定するものでなく第２
図に示した構造の発熱線と同じ構造の温度検知線の２本
を別の蛇行配列パターンで配設し接着フィルム１と接着
したものでもよい。In this embodiment, one heat-sensitive wire serves both the heat generation function and the temperature detection function, but the present invention is not limited to this.
Two heat generating wires having the structure shown in the figure and two temperature detecting wires having the same structure may be arranged in a different meandering arrangement pattern and bonded to the adhesive film 1.

この場合必ず絶縁外被９と仮付接着層３とが加熱加圧に
より融着接合によりヒータユニット１０が得られている
ととが必要である。In this case, it is necessary that the heater unit 10 is necessarily obtained by fusion-bonding the insulating jacket 9 and the temporary adhesive layer 3 by heat and pressure.

また加熱加圧により仮付接着層３を軟化溶融させて絶縁
外被９と融着する際、温度は絶縁外被９の熱変形温度以
下であることが望ましいが、加圧時間が短かければ高温
度になってもさしつか、えない。Furthermore, when the temporary adhesion layer 3 is softened and melted by heating and pressure to be fused to the insulating jacket 9, it is desirable that the temperature be below the thermal deformation temperature of the insulating jacket 9; Even if the temperature gets high, it will not work.

発明の効果 以上詳述した如く９本発明によれば以下の効果が期待で
きてその産業上の利用価値は大なるものがある。Effects of the Invention As detailed above, the following effects can be expected according to the present invention, which has great industrial utility value.

（１）仮付接着層の作用により絶縁外被の著１〜い熱変
形や耐圧不良がなく信頼性の高いヒータユニットが得ら
れる。(1) Due to the action of the tacking adhesive layer, a highly reliable heater unit can be obtained without significant thermal deformation or voltage resistance failure of the insulating jacket.

（２）感熱線の最外かくが絶縁外被だけの為、柔軟性が
良好で蛇行配役の作業性が良い。(2) Since the outermost layer of the heat-sensitive wire is only an insulating jacket, it has good flexibility and is easy to work with meandering wires.

（３）　　ポリアミドの感熱層を使用した感熱線でも絶
縁外被のみの被覆の為、吸湿した水分が脱し易く速熱性
のある床面状採暖具が得られる。(3) Even with a heat-sensitive wire using a heat-sensitive layer of polyamide, since it is covered only with an insulating jacket, absorbed moisture can be easily removed, and a floor-like heating device that heats up quickly can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図及び第５図は本発明の一実施例を示すヒータユニ
ットの要部断面図、第２図は本発明の一実施例の構成部
品である感熱線の構造図、第５図及び第４図は本発明の
一実歴例を応用した床面状採暖具の要部断面図、第６図
は従来例のヒータユニットの要部断面図を示す。 １・・接着フィルム　　２・・・構造接着層６・・・仮
付接着層　　　４・・・感熱線６．８・・・金属導体　
　　７・・・感熱層？・・絶縁外被。1 and 5 are sectional views of essential parts of a heater unit showing one embodiment of the present invention, FIG. 2 is a structural diagram of a heat-sensitive wire that is a component of an embodiment of the present invention, and FIG. 4 is a cross-sectional view of a main part of a floor heating device to which a practical example of the present invention is applied, and FIG. 6 is a cross-sectional view of a main part of a conventional heater unit. 1... Adhesive film 2... Structural adhesive layer 6... Tapping adhesive layer 4... Heat sensitive wire 6.8... Metal conductor
7...Heat-sensitive layer? ...Insulating jacket.

Claims (1)

【特許請求の範囲】[Claims] いずれか一方が発熱作用をする一対の金属導体（６）、
（８）の間にポリアミド系樹脂の感熱層（７）を介在さ
せて全体を塩化ビニル系樹脂の絶縁外被（９）で被覆し
た感熱線（４）と、前記感熱線（４）を蛇行配設して融
着固定する接着フィルム（１）とからなるものにおいて
、前記接着フィルム（１）がポリオレフィン樹脂を主成
分とする構造接着層（２）とカルボニル基を有する樹脂
の仮付接着層（３）との複合層とからなり、前記絶縁外
被（９）と仮付接着層（３）とが加熱加圧により融着固
定されていることを特徴とするヒータユニット。a pair of metal conductors (6), one of which generates heat;
(8) with a heat-sensitive layer (7) of polyamide resin interposed between the heat-sensitive wires (4), the whole of which is covered with an insulating jacket (9) of vinyl chloride-based resin, and the heat-sensitive wire (4) meandering. An adhesive film (1) that is arranged and fused and fixed, the adhesive film (1) comprising a structural adhesive layer (2) mainly composed of a polyolefin resin and a temporary adhesive layer of a resin having a carbonyl group. (3), wherein the insulating jacket (9) and the temporary adhesion layer (3) are fused and fixed by heat and pressure.