JPS60136194A - Method of producing heat generator - Google Patents
Method of producing heat generatorInfo
- Publication number
- JPS60136194A JPS60136194A JP24604183A JP24604183A JPS60136194A JP S60136194 A JPS60136194 A JP S60136194A JP 24604183 A JP24604183 A JP 24604183A JP 24604183 A JP24604183 A JP 24604183A JP S60136194 A JPS60136194 A JP S60136194A
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- temperature
- conductive particles
- resistor
- producing
- 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.)
- Pending
Links
Landscapes
- Resistance Heating (AREA)
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、正の抵抗温度係数（以下、ＰＴＣと略する）
を有する発熱体、あるい（’１、安全素子として用いら
れる抵抗体の製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is directed to positive temperature coefficient of resistance (hereinafter abbreviated as PTC).
This invention relates to a method for manufacturing a heating element having a heating element, or a resistor used as a safety element ('1).
従来例の構成とその問題点
従来）この伸の発熱体は、結晶性プラスチックと導電性
粒子ケ用いるため、発薄い体の温度が−に昇すると導電
性粒子の結晶性プラスチックの中の分散の状態が変化す
るために、発熱体の抵抗値が変化し、安定性に欠ける問
題点ケ有してる。このため、結晶性プラヌチ・ツク中の
導市；性粒子の移動を抑ｒｌｒ’ｌするために、以１の
２つの方法？用いている（１） 架橋させる。Structure of the conventional example and its problemsConventional) This heating element uses crystalline plastic and conductive particles, so when the temperature of the thin heating element rises to -, the dispersion of the conductive particles in the crystalline plastic decreases. Since the state changes, the resistance value of the heating element changes, resulting in a problem of lack of stability. For this reason, in order to suppress the movement of particles in the crystalline planar structure, the following two methods can be used. (1) Crosslinking.
（２）電圧印加時の発熱温度以上融点以１へ−の温度で
熱処理する。(2) Heat treatment at a temperature that is higher than the exothermic temperature when voltage is applied and lower than the melting point.
しかし、（１）の方法だけではプラスチックスと導電性
粒子の結合が不十分であり、電圧印加時の抵抗安定性は
必ずしも十分ではない。 （２）の方法においては、抵
抗全安定させるのに有効な手段であるが、抵抗値が安定
するまで時間ががか、！ｌｌ製造には不適当な方法であ
る。、また、製品に組みこむ場合簡単なＪ：ｍ ７ｉ！
方法である・１・・・１−メ７・１・等を使用した熱圧
着は結晶性フ゛ラヌチックの融点以上ＶＣなるために、
抵抗値が変化するなど、接着方法が限定さｎるという問
題点も有していた。However, with method (1) alone, the bond between the plastic and the conductive particles is insufficient, and the resistance stability upon voltage application is not necessarily sufficient. Method (2) is an effective means for stabilizing the entire resistance, but it takes a long time until the resistance value stabilizes! This method is unsuitable for manufacturing 1. , Also, when incorporating it into a product, it is easy to use J:m 7i!
Thermocompression bonding using methods ・1...1-Me7・1... etc. produces VC above the melting point of crystalline fibrintic.
Another problem was that the bonding method was limited, such as the resistance value changing.
発明の目的
本発明ばかかう従来の問題孕縁消するもので、長期安定
性のある抵抗１ｉｉｌＥを有する発熱体を提供すること
を目的としている。OBJECTS OF THE INVENTION It is an object of the present invention to eliminate such conventional problems and to provide a heating element having a long-term stable resistance.
発明の構成
この目的全達成するために、本発明は、結晶性プラスチ
ックと、導電性粒子からなる正の抵抗温度係数をイＪす
る抵抗体と、＋ＪｉＪ記抵抗体に接続さハた一部の電極
とから（１゛♂ｊ成さｉｚ、１１１Ｊ記結晶性プラヌチ
ツクの融点以上の温度で熱処理される発熱体Ｃ製造方法
である。この製造方法により、結晶性フラスチック内に
分散さ几た導電性粒子は、融点し上に熱処理することに
より、結晶性プラスチック内で十分に凝集する。このた
め、そｎ以上の修囮は匍ｌ１１１４１されるという作用
金有する。Structure of the Invention In order to achieve all of these objects, the present invention provides a resistor having a positive temperature coefficient of resistance consisting of a crystalline plastic and conductive particles, and a part of the resistor connected to the resistor. This is a method for producing a heating element C in which the electrode is heat-treated at a temperature higher than the melting point of the crystalline plastic. The particles are sufficiently agglomerated within the crystalline plastic by heat treatment above their melting point.For this reason, the particles have the effect that decoys with a temperature higher than that point can be reduced.
実施例の説明 以下、本発明の一実施例を第１図を用いて説明する。Description of examples An embodiment of the present invention will be described below with reference to FIG.
実施例１
高密度ポリエチレン（融点１４０℃、メｌレトインデ・
ノクス’ １−０）８５重量パ？−ｔントと、平均−欠
粒径径２４ｍμのカーボン・ブラック １５重量パーセ
ント金熱ロー／Ｌ／にて均一に混練し、抵抗体１ケ作成
した。次に第１図に示すように、−列の電極２，３の周
囲に抵抗体１を押出（〜、その抵抗体周囲を再度、塩化
ビニルにて押出し被覆４を形成した。次に、上記構成の
発熱体を１８０℃の恒洗旨Ｖ９中に入れ、４１時間熱処
）−１１１したつ実施例２
実施例１と相違する点は、平均−欠粒径径４５ｍμのカ
ーボン・ブラック１５重量パーセントを使用し高密度ポ
リエチレン８５重量パーセン１−と混練することにあり
、発熱体構成にした後に１８０℃の恒湿槽中にて、６時
間熱処理する点である。Example 1 High-density polyethylene (melting point 140°C,
Nox' 1-0) 85 weight pa? -t and carbon black having an average defective particle size of 24 mμ were uniformly kneaded in a 15% by weight gold heat roasting/L/L/L/L/L/L/L/metal heat roller to prepare one resistor. Next, as shown in FIG. 1, a resistor 1 was extruded around the electrodes 2 and 3 in the - row (~, and an extrusion coating 4 of vinyl chloride was again formed around the resistor. Example 2 The heating element was placed in a constant washing machine V9 at 180°C and heated for 41 hours).Example 2 The difference from Example 1 was that carbon black 15 weight with an average particle diameter of 45 mμ was used. 85% by weight of high-density polyethylene and kneaded with 1-85% by weight of high-density polyethylene, and after forming a heating element, heat treatment was performed in a constant humidity tank at 180° C. for 6 hours.
′ このときの熱処理における時間の抵抗変化率ケ第２
図に示す。曲線Ａが実施例１であり、曲線２が実施例２
の場合を示している。また、ホラ１−メル１−にて接摺
しても、はとんど接着前後にて抵抗値の変化はほとんど
なく、発熱温度も実施例１゜２ともに、変化かない。'The rate of change in resistance over time during the heat treatment at this time is
As shown in the figure. Curve A is Example 1 and Curve 2 is Example 2
The case is shown below. Further, even when bonded with Hola 1-Mel 1-, there is almost no change in the resistance value before and after adhesion, and there is no change in the heat generation temperature in both Examples 1 and 2.
これは、熱１１−ルＶ（て叔ｆ晶１生７°ヲスチッタ内
に均一に分散さｉ″したカーボン・ブラックが熱処理に
よりほぼ飽和時ら１９、さλる。この場合、カーボン・
ブラックの平均−欠粒径径が小さい稈、また、温度が高
い稈、凝集１１．１間は短縮される。このため、オン・
オフ等の課１ｔｃに寂いても、長期間抵抗値が安定する
という効果がある。This is because the carbon black uniformly dispersed in the crystal is almost saturated by heat treatment.In this case, the carbon black
For culms with a small average black grain size and for culms with a high temperature, the time period between aggregation 11.1 is shortened. For this reason, on
It has the effect of stabilizing the resistance value for a long period of time even when the load is off at 1tc.
また第３図にボッ−構成の発熱体も製造することができ
る。Further, a heating element having a box structure as shown in FIG. 3 can also be manufactured.
発明の効果
以上のように本発明の発熱体の製造方法によれば、結晶
性プラスチ・ツク内に均一に分散されたカーボン・ブラ
ックが熱処理によりほぼ飽和時にａ集が完了されるため
−に、課″むく９返えしても長期間抵抗が安定するとい
う効果がある８また、結晶性グラスチックは、結晶を有
するプラスチックであり、ポリエチレン・ポリプロピレ
ン・ポリアミド等あるいは、これらとの共重合体ならど
の種類でもよく、限定されない。また単独で月１いても
、組み合せで用いてもよいことはいうまでもないことで
ある。また、可撓性を付与するためには各種のゴムと組
み合せてもよい。Effects of the Invention As described above, according to the method for producing a heating element of the present invention, a concentration is completed when the carbon black uniformly dispersed in the crystalline plastic is almost saturated by heat treatment. Lesson 9 It has the effect of stabilizing the resistance for a long time even if it is turned over.8 In addition, crystalline glass is a plastic that has crystals, and if it is made of polyethylene, polypropylene, polyamide, etc. or a copolymer with these, Any type may be used, and there is no limitation.It goes without saying that it may be used alone or in combination once a month.Also, in order to impart flexibility, it may be used in combination with various rubbers. good.
１だ、導電性粒子は、カーボン・ブラック、グラフフィ
ト、グラフト・カーボン、金属粉であってもかまわない
。また、これらの組み合せで用いてもよい。1. The conductive particles may be carbon black, graphite, grafted carbon, or metal powder. Moreover, these may be used in combination.
壕だ、安定剤、酸化防止剤、滑剤、界面活性剤＆！ＩＩ
燃削、４４機過酸化物、劣化防止剤等も混合しても、こ
れらの特性には変化はない。Moat, stabilizers, antioxidants, lubricants, surfactants &! II
Even if fuel, peroxide, deterioration inhibitor, etc. are mixed, these characteristics do not change.
第１図は本発明の一実施例の一部切欠斜視図、第２図は
本発明の特性を示す抵抗変化率ケ示す図、第３図は本発
明の製造方法を使用できる発熱体の一部切欠斜視図であ
め。
１・・・・・・抵抗体、２，３・・・・・・電極、４・
・・・・・絶縁層。
第 １ 口
第 ２ 口
詩 閘（Ａｐ）Fig. 1 is a partially cutaway perspective view of an embodiment of the present invention, Fig. 2 is a diagram showing the resistance change rate showing the characteristics of the present invention, and Fig. 3 is an example of a heating element that can use the manufacturing method of the present invention. Partial cutaway perspective view. 1... Resistor, 2, 3... Electrode, 4...
...Insulating layer. 1st mouth 2nd mouth poem Lock (Ap)
Claims (2)
抗温度係数金石する抵抗体と、前記抵抗体に接続された
一対の′屯瞳とから構成され、ｒｉＪ記結晶性プラスチ
・ツクの融点以」−の温度で熱処理される発熱体の製造
方θ、。(1) Composed of a resistor with a positive resistance temperature coefficient made of crystalline plastic and conductive particles, and a pair of pupil elements connected to the resistor; A method for producing a heating element that is heat treated at a temperature of θ,
求の範囲第１項記載の発熱体の製造方法。 ＋３１ ４’ｌＴＺ性粒子（１）’Ｖ均均粒径径、１５
〜３０ ｍｌｌであジ、結晶１ト１．ヅ″ラスチックの
融点の３０ ｄｅｇ以上の温度で２１１．ｌ１間以」二
の熱処理をする特許請求の範囲第１項記載の発熱体の製
造方法。１（４１導電性粒子のＸ１１−均粒径径が３０
μｍ〜６０μｍであり、結晶性ブラヌチソクの融点の３
０ ｄｅｇ以上の温度で４時間以上の熱処理孕する特許
請求の範囲第１項記載の発熱体の製造方法。(2) The method for producing a heating element according to claim 1, wherein the conductive particles are carbon black. +31 4'lTZ particle (1)'V average particle diameter, 15
~30 ml contains 1 crystal and 1. 2. The method for producing a heating element according to claim 1, wherein heat treatment is carried out at a temperature of 30 degrees or higher than the melting point of the plastic for 211.1 hours or more. 1 (X11-average particle diameter of 41 conductive particles is 30
μm to 60 μm, which is 3 times higher than the melting point of crystalline Buranuchisoku.
The method for manufacturing a heating element according to claim 1, which includes heat treatment at a temperature of 0 degrees or more for 4 hours or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24604183A JPS60136194A (en) | 1983-12-23 | 1983-12-23 | Method of producing heat generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24604183A JPS60136194A (en) | 1983-12-23 | 1983-12-23 | Method of producing heat generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60136194A true JPS60136194A (en) | 1985-07-19 |
Family
ID=17142574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24604183A Pending JPS60136194A (en) | 1983-12-23 | 1983-12-23 | Method of producing heat generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60136194A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01267091A (en) * | 1988-04-20 | 1989-10-24 | Matsushita Electric Ind Co Ltd | Stabilization of resistance of resistive composition and recording material using said composition |
| JPH01296582A (en) * | 1988-05-25 | 1989-11-29 | Mitsubishi Electric Corp | Ribbon heater of self temperature control type |
| JPH0439884A (en) * | 1990-06-06 | 1992-02-10 | Matsushita Electric Ind Co Ltd | Heating body having positive resistance temperature coefficient |
| JPH0443587A (en) * | 1990-06-06 | 1992-02-13 | Matsushita Electric Ind Co Ltd | Heater having positive resistance temperature coefficient |
-
1983
- 1983-12-23 JP JP24604183A patent/JPS60136194A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01267091A (en) * | 1988-04-20 | 1989-10-24 | Matsushita Electric Ind Co Ltd | Stabilization of resistance of resistive composition and recording material using said composition |
| JPH01296582A (en) * | 1988-05-25 | 1989-11-29 | Mitsubishi Electric Corp | Ribbon heater of self temperature control type |
| JPH0439884A (en) * | 1990-06-06 | 1992-02-10 | Matsushita Electric Ind Co Ltd | Heating body having positive resistance temperature coefficient |
| JPH0443587A (en) * | 1990-06-06 | 1992-02-13 | Matsushita Electric Ind Co Ltd | Heater having positive resistance temperature coefficient |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62230003A (en) | Manufacture of ptc device | |
| GB1456047A (en) | Voltage stress-resistant conductive articles | |
| JPS62230001A (en) | Manufacture of ptc device | |
| JPS60156474A (en) | Production of implantable electrode | |
| JPS60136194A (en) | Method of producing heat generator | |
| JP3191825B2 (en) | PTC composition | |
| JP2734253B2 (en) | Positive resistance temperature coefficient heating element | |
| JPH0217609A (en) | Positive resistance temperature coefficient heating element | |
| JPH02140902A (en) | Organic positive characteristics resistor | |
| JPH0235702A (en) | Resistor having positive temperature characteristics of resistance | |
| JPS62209803A (en) | Circuit device | |
| JPS6093702A (en) | Method of producing conductive composition | |
| JPS60186490A (en) | Manufacture of gas diffusion electrode | |
| JPS6196689A (en) | Manufacture of temperature self-controlling heater | |
| JPS6132376A (en) | Method of producing heater having positive temperature coefficient resistance | |
| JPH0218902A (en) | Positive temperature coefficient heater | |
| JPH01169901A (en) | Positive resistance temperature characteristic resistor | |
| JPS62232902A (en) | Manufacture of positive resistance temperature coefficient heating element resin compound | |
| JPS6021554B2 (en) | Manufacturing method of white conductive composite powder | |
| JPS5858793B2 (en) | heating element | |
| SU392556A1 (en) | RESISTANCE MATERIAL | |
| JPS63307685A (en) | Positive-resistance temperature coefficient heating element | |
| JPH05135853A (en) | Heating unit with positive resistance temperature coefficient | |
| JPS61143989A (en) | Heat generating body | |
| JPH0443587A (en) | Heater having positive resistance temperature coefficient |