JPH0212715Y2 - - Google Patents
Info
- Publication number
- JPH0212715Y2 JPH0212715Y2 JP1981075750U JP7575081U JPH0212715Y2 JP H0212715 Y2 JPH0212715 Y2 JP H0212715Y2 JP 1981075750 U JP1981075750 U JP 1981075750U JP 7575081 U JP7575081 U JP 7575081U JP H0212715 Y2 JPH0212715 Y2 JP H0212715Y2
- Authority
- JP
- Japan
- Prior art keywords
- layer
- cord
- insulating layer
- shaped heater
- wire
- 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.)
- Expired
Links
- 239000004642 Polyimide Substances 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 27
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000011521 glass Substances 0.000 description 6
- 239000004020 conductor Substances 0.000 description 5
- 239000012212 insulator Substances 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920006356 Teflon™ FEP Polymers 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Description
【考案の詳細な説明】
この考案は高発熱量を必要とするコード状ヒー
ターの構造に関するものである。[Detailed description of the invention] This invention relates to the structure of a cord-shaped heater that requires a high calorific value.
一般に高発熱量のコード状ヒーターに使用され
る絶縁体には、カツトスルーの危険性を考慮して
熱可そ性樹脂を避けるのが常である。 In general, heat-fusible resins are generally avoided as insulators used in cord-shaped heaters that produce a high calorific value, due to the risk of cut-through.
従来200〜250℃の高温を得るコード状ヒーター
としては、抵抗導体の直上に絶縁層として熱硬化
性のポリイミドテープを巻装しその外側に機械的
保護層としてガラス繊維による編組層を施したも
のが提供されている。又絶縁層は普通25ミクロン
程度の厚さのテープを1/2重ね巻きし、断面が二
枚重ね合せた状態の層で構成されている。 Conventional cord-shaped heaters that achieve high temperatures of 200 to 250°C have been made by wrapping thermosetting polyimide tape as an insulating layer directly above the resistance conductor, and applying a braided layer of glass fiber on the outside as a mechanical protective layer. is provided. The insulating layer is usually made up of two layers of tape with a thickness of about 25 microns wound 1/2 overlapping each other, with the cross-sections of the two layers stacked one on top of the other.
このため、端末加工時絶縁体を剥離する際抵抗
体に損傷を与えずにストリツプすることは非常に
困難で市販のワイヤストリツパーが使用出来ず手
作業で行わねばならない。又コード状ヒーターの
構造上湿度に対する抵抗力が弱く高湿下で絶縁抵
抗が低下する欠点があつた。 For this reason, it is extremely difficult to strip the insulator without damaging the resistor during terminal processing, and it must be done manually as a commercially available wire stripper cannot be used. Furthermore, the cord-shaped heater has a disadvantage in that it has a weak resistance to humidity due to its structure, and its insulation resistance decreases under high humidity conditions.
本考案はこの点に鑑みてなされたものであつて
本考案の要旨とするところは、ポリイミドテープ
を巻装した絶縁層とガラス編組層との中間にふつ
素系樹脂の薄層を押し出し成形によりポリイミド
テープの絶縁層に密着接合して被覆し押し出し時
の成形温度により両者を接着させ、絶縁特性及び
絶縁層のストリツプ加工性に優れたコード状ヒー
ターを提供するものである。 The present invention was devised in view of this point, and the gist of the present invention is to extrude and mold a thin layer of fluorine-based resin between an insulating layer wrapped with polyimide tape and a glass braided layer. The present invention provides a cord-shaped heater which is closely bonded to and coated with an insulating layer of a polyimide tape and bonded together by the molding temperature during extrusion, and which has excellent insulating properties and stripping properties of the insulating layer.
以下図に従い本考案のコード状ヒーターを詳細
に説明する。１は、抵抗導体例えばニクロム線の
如き金属抵抗線又はカーボン繊維等の発熱線の単
線あるいは撚り線又はこれらをガラス紐上にスパ
イラル巻きしたものである。この抵抗導体１の直
上にポリイミドテープ（商品名カプトン）を巻装
して絶縁層２が設けられる。絶縁層は厚さ25ミク
ロン程度のテープを重ね巻きしたものである。ポ
リイミドテープは単独のものでもよいが片面にテ
フロンコーテイングを施したもの（商品名カプト
ンＦ）をコーテイング面が外側になる如く巻装す
ることにより一層の効果が得られる。５は、絶縁
層の直上に押し出し成形されたふつ素系樹脂の連
続した被覆である。この被覆層は、厚さが0.2mm
以下好ましくは0.1mm〜0.15mmの範囲に極めて薄
く形成され押し出し成形の際の熱により絶縁層２
と接着して設けられる。ふつ素系樹脂としてはテ
フロンFEP、テフロンPFA等が用いられる。 The cord-shaped heater of the present invention will be explained in detail below with reference to the drawings. 1 is a resistance conductor such as a metal resistance wire such as a nichrome wire, a heat generating wire such as carbon fiber, a single wire or a stranded wire, or a spirally wound wire of these wires on a glass string. An insulating layer 2 is provided directly above the resistance conductor 1 by wrapping a polyimide tape (trade name: Kapton). The insulating layer is made of overlapping layers of tape approximately 25 microns thick. The polyimide tape may be used alone, but even better effects can be obtained by wrapping it with one side coated with Teflon (trade name: Kapton F) so that the coated side faces outside. 5 is a continuous coating of fluororesin extruded directly onto the insulating layer. This coating layer has a thickness of 0.2mm
The insulating layer 2 is preferably formed extremely thinly in the range of 0.1 mm to 0.15 mm, and is heated during extrusion to form the insulating layer 2.
It is installed by gluing it with. As the fluorine-based resin, Teflon FEP, Teflon PFA, etc. are used.
３は、最外層に施したガラス編組で保護層であ
る。４は、ガラス編組の解れ止め及び耐磨耗性を
向上させる目的で含浸処理したワニスである。本
考案の如き構造のコード状ヒーターは、端末処理
の時絶縁体を剥ぎ取る際、絶縁体とその直上に被
覆された樹脂層とが一体となり、かつ、0.1mm〜
0.15mmの厚さを有しているため普通のワイヤース
トリツパーで抵抗導体を損うことなく樹脂層と同
時に剥ぎ取ることが出来る。又樹脂層は連続した
被まくに形成されているためにピンホールが無く
従つて湿気を通すことによる絶縁低下も全くな
い。更に樹脂層は熱硬化性の絶縁層とガラス編組
層の中間に位置している関係上熱可そ性樹脂の欠
点であるカツトスルー性により影響される恐れも
ない。 3 is a protective layer made of glass braid applied to the outermost layer. 4 is a varnish impregnated with the purpose of preventing the glass braid from unraveling and improving its abrasion resistance. In the cord-shaped heater having the structure of the present invention, when the insulator is stripped off during terminal treatment, the insulator and the resin layer coated directly above it are integrated, and
Because it has a thickness of 0.15 mm, it can be stripped off at the same time as the resin layer with an ordinary wire stripper without damaging the resistance conductor. Furthermore, since the resin layer is formed in a continuous layer, there are no pinholes, and therefore there is no deterioration in insulation due to the passage of moisture. Furthermore, since the resin layer is located between the thermosetting insulating layer and the glass braided layer, there is no fear that it will be affected by the cut-through property, which is a drawback of thermoplastic resins.
第１図は、従来のコード状ヒーターの一部剥離
図である。第２図は、本考案になるコード状ヒー
ターの一部剥離図である。図中１′，２′，３′，
４′はそれぞれ抵抗導体、絶縁層、ガラス編組層、
処理層を示す。
FIG. 1 is a partially exploded view of a conventional cord-shaped heater. FIG. 2 is a partially peeled-off view of the cord-shaped heater according to the present invention. In the figure 1', 2', 3',
4' are a resistance conductor, an insulating layer, a glass braided layer, and
The processing layer is shown.
Claims (1)
に押し出し成形により厚さ0.2mm以下のふつ素樹
脂層を密着接合して被覆し、更にその外側をガラ
ス繊維で編組した構造のコード状ヒーター。 A cord-shaped heater with a structure in which a polyimide tape is wrapped around a resistance wire, a fluororesin layer with a thickness of 0.2 mm or less is tightly bonded and covered by extrusion molding, and the outside is further braided with glass fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981075750U JPH0212715Y2 (en) | 1981-05-27 | 1981-05-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981075750U JPH0212715Y2 (en) | 1981-05-27 | 1981-05-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57188288U JPS57188288U (en) | 1982-11-29 |
| JPH0212715Y2 true JPH0212715Y2 (en) | 1990-04-10 |
Family
ID=29871473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981075750U Expired JPH0212715Y2 (en) | 1981-05-27 | 1981-05-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0212715Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2815427B2 (en) * | 1989-11-27 | 1998-10-27 | ニューヒート インダストリーズ リミテッド | Floor covering heating equipment |
| JP2008023141A (en) * | 2006-07-24 | 2008-02-07 | Matsushita Electric Ind Co Ltd | Warmed toilet seat |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5646498Y2 (en) * | 1977-10-25 | 1981-10-30 |
-
1981
- 1981-05-27 JP JP1981075750U patent/JPH0212715Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57188288U (en) | 1982-11-29 |
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