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JP4154493B2 - Exothermic sheet - Google Patents
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JP4154493B2 - Exothermic sheet - Google Patents

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Publication number
JP4154493B2
JP4154493B2 JP2003102028A JP2003102028A JP4154493B2 JP 4154493 B2 JP4154493 B2 JP 4154493B2 JP 2003102028 A JP2003102028 A JP 2003102028A JP 2003102028 A JP2003102028 A JP 2003102028A JP 4154493 B2 JP4154493 B2 JP 4154493B2
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Prior art keywords
heat generating
sheet
strip
conductive
generating sheet
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JP2003102028A
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Japanese (ja)
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JP2004311178A (en
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武司 北原
義英 安藤
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カンキョー株式会社
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Description

【0001】
【発明の属する技術分野】
この発明は、発熱シートの電極の接続部を薄く構成することを目的とした発熱シートに関する。
【0002】
【従来の技術】
従来知られている床暖房装置で電熱を利用する装置においては、床板上へヒータ線を敷設し、ヒータ線の上面へ熱良導体の網材を配し、その上に床材を層着した構造であった。
【0003】
また、ポリエステルフィルムの上面に導電性のカーボン塗料を塗布し、電極帯を設けた面状発熱体をゴムで被覆した電熱シートが知られていた。
【0004】
【特許文献1】
特開平9−280582
【0005】
【特許文献2】
特開2000−228275
【0006】
【発明により解決しようとする課題】
前記従来のヒータ線を発熱体とする発明は、線状発熱のために、熱効率が悪くなると共に、全体の厚さが大きくなり、かつ巻き込んだり、折り畳んだりできない。その上、遠赤外線も出ないなどの問題点があった。
【0007】
また、カーボンを発熱体とした発明は、温度制御ができないので、回路に温度コントローラーを介装しているが、コントローラーの故障により高温になったり、低温火傷を生じるおそれがあった。
【0008】
次に、カーボン粉末よりなる赤外線放射層を設けた発明の場合にも、発熱シートの電気的接続部が厚くなり、敷設上幾多の問題点があった。
【0009】
【課題を解決するための手段】
この発明は、発熱シート相互の電気的接続を、銅薄板のようにきわめて薄い電極条を用い、カシメによって相互両電極を接続するので、接続が確実であり、作業性もよく、全体を極薄(例えば2mm位)にして、前記従来の問題点を解決したのである。
【0010】
即ちこの発明は、絶縁シート上に、基導電条と、該基導電条より分岐した枝導電条よりなるプラスとマイナスの導電条と、遠赤外線を輻射するカーボン塗料よりなり、上限温度制御できる発熱層とを並列して設け、前記枝導電条と発熱層とを接続し、前記導電条と発熱層上へ絶縁シートを被着して一体的発熱シートとすると共に、前記発熱シートの一端部へ、両端に夫々雌雄の接続部を有する銅薄板よりなる二条の電極条を並列して固定し、前記両電極条の両端接続部はカシメ接続できると共、前記両電極条と前記導電条のプラス側と、マイナス側を夫々はとめで接続したことを特徴とする発熱シートであり、導電条は、銀粉を主材料とする銀塗料であって、印刷又は塗布により設けたことを特徴とするものである。
【0011】
次にの発明のシートを製造するには、絶縁シートへ所定間隔で遠赤外線を輻射する発熱層を設け、次いで、前記発熱層と平行する導電条と、交差する導電条を設け、前記発熱層と、導電条の上部へ絶縁シートを被着して、前記両シートを一体的に熱シールして発熱シートとし、該発熱シートの一端部へ両端に夫々接続部を有する二条の電極条を並列して固定し、前記電極条に、前記導電条のプラス側と、マイナス側を夫々接続することを特徴とした発熱シートの製造方法であり、発熱層は、カーボン粉を主材料とするカーボン塗料であって、通電により一定温度まで上昇し、上限温度制御できる材質とすることを特徴としたものである。また、導電条は、銀粉を主材料とする銀塗料であって、印刷又は塗布することを特徴としたものであり、電極条は銅薄板よりなり、一端に雄接続部を有し、他端に雌接続部を有することを特徴としたものである。
【0013】
前記発明における断熱シートは、絶縁性、強靱性、断熱性があって、耐温度特性(例えば100℃位まで軟化変形しない)があれば、多くの合成樹脂シートを使用することができる。例えばポリエステル、ポリエチレン、ポリプロピレン、ポリアセタール、ポリカーボネイトなどがある。
【0014】
この発明に用いるカーボン塗料は、カーボン粉末に導電特性のあるセラミックス粉末を混入した。例えば45℃以上になれば自動的に電気抵抗が上昇して通電できなくなるようにしてある。従って、コントローラが故障しても過熱により不慮の災害を生じるおそれはない。
【0015】
この発明によれば、例えば最高温度を45℃に設定すると、45℃以上に発熱することがなく、かつ遠赤外線が作用するので、長時間暖房の場合でも低温火傷を生じるおそれはない。
【0016】
この発明の発熱シートは、極めて薄い(例えば0.25mm)ので、暖房パネル又は暖房畳の中へ介装しても、全体の厚さに修正を加える必要がなく、またロール巻にできるので、運搬、施工、貯蔵等に便利である。
【0017】
この発明のカーボン塗料は、マトリックス高分子粒子層が低温になると縮まり、半導体カーボンがくっついて電気抵抗率が弱まり、通電して温度が高くなると、マトリックス高分子粒子層が離れて電気抵抗が高くなり、電気が止まるので、温度自動制御できる。また、カーボン粒子として炭粉末を用いることにより、遠赤外線の放射と陰イオンの発生が見込まれ、環境を改善する。
【0018】
この発明の製造方法によれば、絶縁シートへ発熱層と導電条とを印刷その他の手段で層着することにより、発熱シートができるので、長大な、任意幅の発熱シートを高速生産することができる。また、前記のように発熱シートはきわめて薄いのでロール巻にすれば、長大でも小容量にして保管、運搬取扱いができると共に、必要量宛切断して、発熱シートにすることができる。
【0019】
従来所定面積の発熱シートを接続して使用する場合に電気接続器が厚く(例えば6mm以上)なるおそれがあったが、この発明によれば、きわめて薄く(例えば2.0mm位できるので、前記問題点を解決し、施工を容易にすると共に、敷設位置の制約が皆無となった。
【0020】
【発明の実施の形態】
この発明は、絶縁シートの上面に、銀粉よりなる導電条と、カーボン塗料よりなる発熱層を印刷し、両印刷は一回又は複数回の印刷により所望の厚さとすることができる。次に、前記導電条と、発熱層の上面に絶縁シートを被着して一体的に熱シールし、この発明の発熱シートを構成し、次いで発熱シートの一側に、両端に接続部を有する電極条を固定して電気的に接続した。
【0021】
この発明を床暖房用パネルに使用するには、断熱材よりなる捨板と、フローリングとの間に、前記電極付の発熱シートを挟み込み一体的に固定して構成する。前記において、捨板はビス(もくねじ)止めする。前記発熱シートは、カーボン塗料を塗布(印刷)した発熱層及び銀粉塗料を塗布(印刷)した導電条を傷つけないように、前記捨板の表面を点検した上で、必要とする面積の発熱シートを敷設し、接着テープで接着固定する。次に、フローリングは、ビス(もくねじ)止め又は釘打ちで固定する。この場合に、発熱シートを傷つけないことが肝要であり、万一発熱層及び導電条にビスを螺入した場合には、ビスを抜いて、発熱シート(発熱層など)を耐熱絶縁補修テープで補修するか、無傷のシートと取り換えなければならない。
【0022】
この発明の発熱シートは、一定の少面積毎に構成されているので、発熱シートの損傷その他の事故を生じた場合には、該当部分のみの取り換えができる。
【0023】
また、この発明の発熱シートの製造に際し、少面積毎に通電回路の完結方式を採用しているので、長大な発熱シートを製造後、各回路毎に分断し、コード及び接続器を接続して合理的、かつ効率よく発熱シートを製造することができる。
【0024】
前記発熱シートの寸法は、例えば幅を30cmとし、長さを適宜とすれば、原建築基準の寸法と適合するので、前記単位発熱シートを必要面積に達するまでに自由に組み立てることができる。
【0025】
この発明は、一方の発熱シートの電極条の雄接続部を他方の発熱シート電極条の雌接続部へ挿入し、カシメて固定することにより、確実に接続することができる。この場合の接続部の厚さは、電極条の厚さのほぼ3倍程度であるから、きわめて薄くすることができる(例えば2.0mm位)。
【0026】
従って、この発熱シートを床暖房、暖房畳、その他に応用する場合であっても、接続部の厚さが問題になるおそれがなく、施工が容易になる。
【0027】
【実施例1】
この発明の発熱シートの実施例を図1、2、3に基づいて説明する。ポリエステルフィルム1上へカーボン塗料により発熱層2、2aを所定幅と長さ(例えば50mm×300mm)、所定間隔に塗布(印刷、ローラ塗布)すると共に、前記発熱層2、2aに並列して銀塗料により基導電条3a、3b、3c、3dと、発熱層2、2aに接続する枝導電条4、4aを塗布し、その表面へポリエステルフィルム1aを被着する。前記基導電条3a、3b、3c、3dの一側へ電極条5、5aを並列して接続し、電極条5、5a両端へ夫々雄雌の接続部8、9を接続して、発熱シート10を構成する。前記電極条5は、はとめ7を介して基導電条3a、3cと接続し、前記電極条5aは、はとめ7aを介して基導電条3b、3dと接続している。前記基導電条3a、3b、3c、3dからは、直角方向へ多数の枝導電条4、4aが延びて、発熱層2、2aと交差し、例えば基導電条3a、枝導電条4、発熱層2及び枝導電条4、基導電条3bのように通電し、回路を完結する。
【0028】
前記実施例において基導電条3a、3bは、枝導電条4、発熱層2、枝導電条4を介して基導電条3bと回路を完結しているので、通電回路の一部に必ず発熱層2が介在することになり、目的を達成することができる。
【0029】
前記実施例において、電極条5、5aの両端には雌接続部8と、雄接続部9が設けてあり、前記電極条5、5aの、夫々の雌接続部8と雄接続部が近接するように、並列固定してある。図中6は、はとめ孔である。
【0030】
前記電極条5、5aは、良導電材料(例えば薄銅板)よりなり、雌接続部8は、雄接続部9を抱え込むためのカシメ片8a、8aが複数設けてあり、雄接続部9には、前記カシメ片8aが入り込む為の凹入部9aが設けてある。
【0031】
従って、雌接続部8へ雄接続部9を挿入し、凹入部9aへカシメ片8aをカシメると、接続部の厚さはほぼ材料の3倍の厚さとなる。従って、電極条の接続部分の表裏を絶縁シート11で覆い、はとめ7、7aで固定しても、接続部の厚さを2mm程度にすることができるので、接続部以外の厚さ2mm以下と相俟って全体を2mm以内に収めることができる。
【0032】
【実施例2】
この発明の製造方法の実施例を図4に基づいて説明すると、発熱シートのロール12から、発熱シート10を切り取り(例えば50mm×200mm)、次いで予め成形した電極条5、5aを、前記発熱シート10の一側の正規位置へ並列して裁置し、はとめ7、7aによって、基導電条3a、3b、3c、3dと、前記電極条5、5aとを固定した後、接続部の表裏を絶縁シート11で被覆し、この発明の発熱シート製品15が構成される。
【0033】
この発熱シート製品の電極条5、5aの夫々の両端には、雌接続部8と、雄接続部9が設けてあって、前記電極条5、5aの近接端部には、雌接続部8と、雄接続部9が設けてある。従って、複数の発熱シート15を接続する場合に電極条5、5aは、必ずプラス側とマイナス側に統一され、接続時におけるプラス、マイナスが混乱するおそれはない。
【0034】
【実施例3】
この発明の接続装置の実施例を図5に基づいて説明する。発熱シート製品15、15aを並列し、一方の発熱シート製品15の電極条5、5aを、他方の発熱シート製品15aの電極条5、5a及び発熱シート製品15bの電極条5、5aと嵌合わさせ、嵌合部14、14aをカシメることによって両発熱シート製品を接続することができた。このようにして発熱シート製品の組立面積を自由に選択することができる。
【0035】
【発明の効果】
この発明によれば、隣接発熱シートとの接続部の厚さを可及的に薄くすることにより、施工厚さがきわめて薄くなる効果がある。
【0036】
この発明によれば、発熱シート製品を多量生産できる効果がある。
【0037】
また、装置の発明によれば、この発明の発熱シート製品を使用することによって、接続部の厚さを可及的に薄くし、これにより、床等を傷つけることなく、発熱シートを容易かつ確実に敷設できる効果がある。
【0038】
また、接続部をカシメた後に波打ち状態になり、ガタの発生がしにくくなると共に、段階的に調整可能(例えば3段階)である。
【図面の簡単な説明】
【図1】この発明の実施例の一部を省略した平面図。
【図2】(a)同じく図1中A−A断面拡大図。
(b)同じく図1中B−B断面拡大図。
(c)同じく図1中C−C断面拡大図。
【図3】(a)同じく電極条の一部を省略した拡大平面図。
(b)同じくD−D断面拡大図。
(c)同じくE−E断面拡大図。
【図4】(a)同じくブロック図。
(b)同じく一部を省略した概念図。
【図5】(a)同じく発熱シートの接続の一例を示す一部省略した平面図。
(b)同じく接続部の一部を省略した拡大平面図。
(c)同じく拡大正面図。
【符号の説明】
1 ポリエステルフィルム
2、2a 発熱層
3a、3b、3c、3d 基導電条
4、4a 枝導電条
5、5a 電極条
8、9 雌雄接続部
7 はとめ
10 発熱シート
11 絶縁シート
12 ロール
14 嵌合部
15 発熱シート製品
[0001]
BACKGROUND OF THE INVENTION
This invention relates to the heating sheet for the purpose of constructing thin connection portions of the heat generating sheet of the electrode.
[0002]
[Prior art]
In a device that uses electric heat in a conventionally known floor heating device, a structure in which a heater wire is laid on the floor board, a mesh material of a good thermal conductor is arranged on the upper surface of the heater wire, and the floor material is layered thereon. Met.
[0003]
In addition, there has been known an electric heating sheet in which a conductive carbon paint is applied to the upper surface of a polyester film and a sheet heating element provided with an electrode band is covered with rubber.
[0004]
[Patent Document 1]
JP-A-9-280582
[0005]
[Patent Document 2]
JP 2000-228275 A
[0006]
[Problems to be solved by the invention]
In the invention using the conventional heater wire as a heating element, the heat efficiency is deteriorated due to the linear heat generation, the entire thickness is increased, and the coil cannot be wound or folded. In addition, there was a problem that far infrared rays were not emitted.
[0007]
In the invention using carbon as a heating element, since the temperature cannot be controlled, a temperature controller is interposed in the circuit. However, there is a possibility that the controller may become hot or low temperature burns may occur due to a failure of the controller.
[0008]
Next, in the case of the invention in which the infrared radiation layer made of carbon powder is provided, the electrical connection portion of the heat generating sheet becomes thick, and there are many problems in laying.
[0009]
[Means for Solving the Problems]
In this invention, the electrical connection between the heat generating sheets is made by using extremely thin electrode strips such as a copper thin plate, and the both electrodes are connected by caulking, so that the connection is reliable, the workability is good, and the whole is extremely thin. (For example, about 2 mm) to solve the conventional problems.
[0010]
That is, the present invention comprises a base conductive strip, plus and minus conductive strips that are branched from the base conductive strip, and a carbon paint that radiates far-infrared rays, and heat generation that can control the upper limit temperature. In parallel, the branch conductive strip and the heat generating layer are connected to each other, and an insulating sheet is attached onto the conductive strip and the heat generating layer to form an integral heat generating sheet, and to one end of the heat generating sheet. , across each male and female in parallel Nijo electrode strip of copper sheet having a connecting portion fixed to the both end connecting portions of the electrodes shall co to be able caulking connection, the the two electrodes strip of the electrically Denjo and the plus side, a heat generating sheet characterized in that connected to the negative side in each eyelet, conductive Article, a silver paint silver powder as a main material, characterized in that provided by printing or coating Monodea Ru.
[0011]
Next to producing sheets of this invention, a heat generating layer for radiating far-infrared rays at predetermined intervals in the insulating sheet is provided, then, a conductive Denjo in parallel with the heat generating layer, the intersecting conductive Denjo provided, the heating The insulating sheet is attached to the upper part of the layer and the conductive strip, and both the sheets are integrally heat-sealed to form a heat generating sheet, and two electrode strips having connection portions at both ends to one end of the heat generating sheet, respectively. It is a method of manufacturing a heat generating sheet characterized by fixing in parallel and connecting the positive side and the negative side of the conductive strip to the electrode strip, and the heat generating layer is made of carbon powder made of carbon powder. The coating material is characterized in that it is made of a material that can be heated to a certain temperature by energization and can control the upper limit temperature. The conductive strip is a silver paint whose main material is silver powder, and is printed or coated. The electrode strip is made of a thin copper plate, has a male connection portion at one end, and the other end. And a female connection portion.
[0013]
If the heat insulation sheet in the said invention has insulation, toughness, and heat insulation, and has a temperature resistance characteristic (for example, it does not soften and deform to about 100 degreeC), many synthetic resin sheets can be used. For example, there are polyester, polyethylene, polypropylene, polyacetal, polycarbonate and the like.
[0014]
In the carbon paint used in the present invention, ceramic powder having conductive characteristics is mixed in carbon powder. For example, when the temperature rises to 45 ° C. or higher, the electrical resistance is automatically increased so that current cannot be supplied. Therefore, even if the controller breaks down, there is no possibility of causing an unexpected disaster due to overheating.
[0015]
According to the present invention, for example, when the maximum temperature is set to 45 ° C., no heat is generated to 45 ° C. or more, and far infrared rays act. Therefore, there is no possibility of low temperature burns even in the case of long-time heating.
[0016]
Since the heat generating sheet of the present invention is extremely thin (for example, 0.25 mm), it is not necessary to modify the entire thickness even if it is inserted into a heating panel or a heating tatami, and can be rolled. Convenient for transportation, construction and storage.
[0017]
Carbon coatings of this invention, shrinks the matrix polymer particle layer is low, electrical resistivity weakened stick semiconductor carbon and temperature energized increases, higher electric resistance apart the matrix polymer particles layer As electricity stops , temperature can be controlled automatically. Also, by using charcoal powder as carbon particles, the generation of far infrared radiation and anions is expected to improve the environment.
[0018]
According to the manufacturing method of the present invention, since the heat generating sheet can be formed by layering the heat generating layer and the conductive strip on the insulating sheet by printing or other means, it is possible to produce a long and arbitrarily large heat generating sheet at high speed. it can. Further, if the heat generating sheet is roll wound so extremely thin as described above, it can be stored in the even small capacity very long, it is transported to handle, and the required amount destined cleaved to the heat generating sheet.
[0019]
Conventionally, when connecting and using a heat generating sheet having a predetermined area, the electrical connector may be thick (for example, 6 mm or more), but according to the present invention, the electrical connector can be extremely thin (for example, about 2.0 mm ). The problem was solved, construction was facilitated, and there were no restrictions on the laying position.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, a conductive strip made of silver powder and a heat generating layer made of carbon paint are printed on the upper surface of an insulating sheet, and both printings can be made to have a desired thickness by one or more times of printing. Next, an insulating sheet is attached to the upper surface of the conductive strip and the heat generating layer and integrally heat-sealed to constitute the heat generating sheet of the present invention. Next, one side of the heat generating sheet has connection portions at both ends. The electrode strip was fixed and electrically connected.
[0021]
In order to use the present invention for a floor heating panel, the heat generating sheet with the electrode is sandwiched between a discard plate made of a heat insulating material and a flooring, and fixed integrally. In the above, the discard plate is screwed. The heating sheet has a required area after checking the surface of the scraper so as not to damage the heating layer coated (printed) with the carbon paint and the conductive strip coated (printed) with the silver powder coating. Is laid and fixed with adhesive tape. The flooring is then secured with screws or nails. In this case, it is important not to damage the heat generating sheet. If a screw is screwed into the heat generating layer and the conductive strip, the screw is removed and the heat generating sheet (heat generating layer, etc.) is covered with a heat-resistant insulating repair tape. It must be repaired or replaced with an intact sheet.
[0022]
Since the heat generating sheet according to the present invention is configured for every certain small area, only the corresponding part can be replaced when the heat generating sheet is damaged or other accidents occur.
[0023]
In addition, when manufacturing the heat generating sheet of the present invention, the completion method of the energization circuit is adopted for each small area, so after manufacturing the long heat generating sheet, it is divided for each circuit, and the cord and connector are connected. A heat generating sheet can be manufactured reasonably and efficiently.
[0024]
For example, if the width of the heat generating sheet is set to 30 cm and the length is appropriately set, the heat generating sheet conforms to the dimensions of the original building standard, so that the unit heat generating sheet can be freely assembled before reaching the required area.
[0025]
According to the present invention, the male connection portion of the electrode strip of one heat generating sheet is inserted into the female connection portion of the other heat generating sheet electrode strip, and the connection is ensured by crimping and fixing. In this case, since the thickness of the connecting portion is about three times the thickness of the electrode strip, it can be made extremely thin (for example, about 2.0 mm).
[0026]
Therefore, even when this heat generating sheet is applied to floor heating, heating tatami mats, and the like, the thickness of the connecting portion is not a problem, and the construction is facilitated.
[0027]
[Example 1]
Embodiments of the heat generating sheet according to the present invention will be described with reference to FIGS. The heat generating layers 2 and 2a are coated on the polyester film 1 with a carbon paint at a predetermined width and length (for example, 50 mm × 300 mm) at predetermined intervals (printing and roller application), and silver is formed in parallel with the heat generating layers 2 and 2a. The base conductive strips 3a, 3b, 3c, and 3d and the branch conductive strips 4 and 4a connected to the heat generating layers 2 and 2a are applied by a paint, and the polyester film 1a is attached to the surface. Electrode strips 5 and 5a are connected in parallel to one side of the base conductive strips 3a, 3b, 3c and 3d, and male and female connection portions 8 and 9 are connected to both ends of the electrode strips 5 and 5a, respectively. 10 is configured. The electrode strip 5 is connected to the base conductive strips 3a and 3c via the ends 7. The electrode strip 5a is connected to the base conductive strips 3b and 3d via the ends 7a. From the base conductive strips 3a, 3b, 3c, 3d, a large number of branch conductive strips 4, 4a extend in a perpendicular direction and intersect the heat generating layers 2, 2a. For example, the base conductive strip 3a, the branch conductive strip 4, the heat generating The circuit is completed by energizing like the layer 2, the branch conductive strip 4, and the base conductive strip 3b.
[0028]
In the above embodiment, the base conductive strips 3a and 3b complete the circuit with the base conductive strip 3b via the branch conductive strip 4, the heat generating layer 2, and the branch conductive strip 4, so that the heat generating layer is always included in a part of the energizing circuit. Therefore, the object can be achieved.
[0029]
In the said Example, the female connection part 8 and the male connection part 9 are provided in the both ends of the electrode strips 5 and 5a, and each female connection part 8 and the male connection part of the said electrode strips 5 and 5a adjoin. As shown, they are fixed in parallel. In the figure, reference numeral 6 denotes a fitting hole.
[0030]
The electrode strips 5, 5 a are made of a highly conductive material (for example, a thin copper plate), and the female connection portion 8 is provided with a plurality of crimping pieces 8 a, 8 a for holding the male connection portion 9. A recess 9a is provided for the crimping piece 8a to enter.
[0031]
Therefore, when the male connection portion 9 is inserted into the female connection portion 8 and the crimping piece 8a is crimped into the recessed portion 9a, the thickness of the connection portion is approximately three times the thickness of the material. Therefore, even if the front and back of the connecting portion of the electrode strip are covered with the insulating sheet 11 and fixed with the fasteners 7 and 7a, the thickness of the connecting portion can be reduced to about 2 mm, so the thickness other than the connecting portion is 2 mm or less. Together, the whole can be kept within 2 mm.
[0032]
[Example 2]
An embodiment of the manufacturing method of the present invention will be described with reference to FIG. 4. The heat generating sheet 10 is cut from the heat generating sheet roll 12 (for example, 50 mm × 200 mm), and then the pre-formed electrode strips 5 and 5a are used as the heat generating sheet. 10 and placed in parallel to the regular position on one side, and the base conductive strips 3a, 3b, 3c, and 3d and the electrode strips 5 and 5a are fixed by the fittings 7 and 7a. Is covered with an insulating sheet 11 to form a heat generating sheet product 15 of the present invention.
[0033]
A female connecting portion 8 and a male connecting portion 9 are provided at both ends of each of the electrode strips 5 and 5a of the heat generating sheet product, and a female connecting portion 8 is provided at a proximal end portion of the electrode strips 5 and 5a. And a male connecting portion 9 is provided. Therefore, when connecting a plurality of heat generating sheets 15, the electrode strips 5 and 5a are always unified on the plus side and the minus side, and there is no possibility of confusion between plus and minus at the time of connection.
[0034]
[Example 3]
An embodiment of the connection device of the present invention will be described with reference to FIG. The heating sheet products 15 and 15a are juxtaposed, and the electrode strips 5 and 5a of one heating sheet product 15 are fitted to the electrode strips 5 and 5a of the other heating sheet product 15a and the electrode strips 5 and 5a of the heating sheet product 15b. Then, both the heat generating sheet products could be connected by crimping the fitting portions 14 and 14a. In this way, the assembly area of the heat generating sheet product can be freely selected.
[0035]
【The invention's effect】
According to this invention, there is an effect that the construction thickness is extremely reduced by reducing the thickness of the connecting portion with the adjacent heat generating sheet as much as possible.
[0036]
According to the present invention, there is an effect that a heat-generating sheet product can be mass-produced.
[0037]
In addition, according to the invention of the apparatus, by using the heat generating sheet product of the present invention, the thickness of the connecting portion is made as thin as possible, and thereby the heat generating sheet can be easily and reliably obtained without damaging the floor or the like. There is an effect that can be laid.
[0038]
In addition, after the connecting portion is crimped, it becomes a wavy state, it is difficult for rattling to occur, and adjustment is possible in steps (for example, three steps).
[Brief description of the drawings]
FIG. 1 is a plan view in which a part of an embodiment of the present invention is omitted.
2A is an enlarged cross-sectional view taken along the line AA in FIG.
(B) The BB cross-sectional enlarged view in FIG.
(C) Similarly CC sectional expanded view in FIG.
FIG. 3A is an enlarged plan view in which a part of the electrode strip is also omitted.
(B) Similarly DD sectional enlarged view.
(C) EE cross-sectional enlarged view.
FIG. 4A is also a block diagram.
(B) The conceptual diagram which abbreviate | omitted one part.
FIG. 5A is a partially omitted plan view showing an example of connection of heat generating sheets.
(B) The enlarged plan view which abbreviate | omitted a part of connection part similarly.
(C) The same enlarged front view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Polyester film 2, 2a Heat generating layer 3a, 3b, 3c, 3d Base conductive strip 4, 4a Branch conductive strip 5, 5a Electrode strip 8, 7 Male and female connection part 7 Fitting 10 Heat generating sheet 11 Insulating sheet 12 Roll 14 Fitting part 15 Heat generation sheet product

Claims (2)

絶縁シート上に、基導電条と、該基導電条より分岐した枝導電条よりなるプラスとマイナスの導電条と、遠赤外線を輻射するカーボン塗料よりなり、上限温度制御できる発熱層とを並列して設け、前記枝導電条と発熱層とを接続し、前記導電条と発熱層上へ絶縁シートを被着して一体的発熱シートとすると共に、前記発熱シートの一端部へ、両端に夫々雌雄の接続部を有する銅薄板よりなる二条の電極条を並列して固定し、前記両電極条の両端接続部はカシメ接続できると共、前記両電極条と前記導電条のプラス側と、マイナス側を夫々はとめで接続したことを特徴とする発熱シート。On the insulating sheet, a base conductive strip, plus and minus conductive strips made of branch conductive strips branched from the base conductive strip, and a heat generating layer made of carbon paint that radiates far infrared rays and capable of controlling the upper limit temperature are arranged in parallel. Te provided, the branch Denjo and connects the heat generating layer, the conductive Denjo to heating layer an insulating sheet with an integral heat generating sheet by adhering the to one end portion of the heat generating sheet, respectively male and female ends the connecting portion is fixed in parallel to the electrode strip with Article made of copper sheet with the both end connecting portions of the electrodes shall co to be able caulking connection, the plus side of the electrically Denjo and the two electrodes strip, negative heating the sheet, characterized in that connecting the side in each eyelet. 導電条は、銀粉を主材料とする銀塗料であって、印刷又は塗布により設けたことを特徴とする請求項1記載の発熱シート。The heat generating sheet according to claim 1, wherein the conductive strip is a silver paint mainly composed of silver powder and is provided by printing or coating .
JP2003102028A 2003-04-04 2003-04-04 Exothermic sheet Expired - Lifetime JP4154493B2 (en)

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JP4154493B2 true JP4154493B2 (en) 2008-09-24

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