JPS61239581A - Positive resistance temperature coefficient resistor - Google Patents
Positive resistance temperature coefficient resistorInfo
- Publication number
- JPS61239581A JPS61239581A JP7960685A JP7960685A JPS61239581A JP S61239581 A JPS61239581 A JP S61239581A JP 7960685 A JP7960685 A JP 7960685A JP 7960685 A JP7960685 A JP 7960685A JP S61239581 A JPS61239581 A JP S61239581A
- Authority
- JP
- Japan
- Prior art keywords
- resistance temperature
- temperature coefficient
- positive resistance
- coefficient resistor
- weight
- 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、暖房器具等に用いられる自己温度制御ヒータ
に使用される抵抗体に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a resistor used in a self-temperature control heater used in a heating appliance or the like.
従来の技術
従来のこの種の正抵抗温度係数抵抗体は、ポリエチレン
等の結晶性樹脂と、カーボン・ブラックあるいは金属微
粉末等の導電性粒子とから構成される装置
３へ−
発明が解決しようとする問題点
この種の正抵抗温度抵抗体を用いてヒータとした場合の
抵抗温度特性を図に示す。図に示すように、抵抗値は結
晶性樹脂の軟化点付近で急激に立ち上がり、融点以上で
減少する傾向がみられる。BACKGROUND OF THE INVENTION A conventional positive resistance temperature coefficient resistor of this type has a device 3 composed of a crystalline resin such as polyethylene and conductive particles such as carbon black or fine metal powder. The figure shows the resistance-temperature characteristics when this type of positive resistance temperature resistor is used as a heater. As shown in the figure, the resistance value tends to rise rapidly near the softening point of the crystalline resin and decrease above the melting point.
このだめ、通常に使用される場合は結晶性樹脂の軟化点
以下で使われるだめに問題はないが、他の熱源等により
ヒータの温度が結晶性樹脂の融点以上になった場合、負
の温度特性領域に入るため、自己の発熱により異常に温
度が上昇し、発火の危険があるという問題点を有してい
た。In normal use, there is no problem with this heater being used at temperatures below the softening point of the crystalline resin, but if the temperature of the heater rises above the melting point of the crystalline resin due to other heat sources, negative temperatures may occur. Since it falls within the characteristic range, the temperature rises abnormally due to its own heat generation, which poses a problem in that there is a risk of ignition.
本発明はかかる従来の問題を解消するもので、正抵抗温
度係数抵抗体自身を不燃性とし、発火等の危険を少なく
する抵抗体を提供することを目的とする。The present invention aims to solve such conventional problems and to provide a positive resistance temperature coefficient resistor which is itself non-flammable and reduces the risk of ignition.
問題点を解決するだめの手段
上記問題点を解決するだめに、本発明の正抵抗温度係数
抵抗体は結晶性樹脂と、ノ・ロゲン元素を含む樹脂と、
難燃性添加物と、導電性粒子とから成るものである。Means for Solving the Problems In order to solve the above problems, the positive resistance temperature coefficient resistor of the present invention includes a crystalline resin, a resin containing a chlorogenic element,
It consists of flame retardant additives and conductive particles.
作 用
本発明は上記の構成によって、正抵抗温度係数抵抗体内
にノ・ロゲン元素を含む樹脂と、難燃性添加物を混入し
ているだめに、正抵抗温度係数抵抗体自身が他熱源によ
り異常加熱し、発火しようとしても、ノ・ロゲン元素が
気化し、正抵抗温度係数抵抗体から酸素を遮断し、発火
を防ぐのである。Effects of the present invention With the above-mentioned configuration, since the positive resistance temperature coefficient resistor itself is mixed with a resin containing a nitrogen element and a flame retardant additive, the positive resistance temperature coefficient resistor itself is not affected by other heat sources. Even if an attempt is made to ignite due to abnormal heating, the NOx element vaporizes and blocks oxygen from the positive resistance temperature coefficient resistor, preventing ignition.
また、難燃性添加物も同様の作用のために発火を防ぐこ
ととなる。Furthermore, flame retardant additives also prevent ignition due to the same effect.
実施例
以下、本発明の詳細な説明する。結晶性樹脂として低密
度ポリエチレン（１００重量部）に、ハロゲン元素を含
む樹脂として、塩素化ポリエチレン（６５重量部）と、
難燃性添加物勿として三酸化二アンチモン（４０重量部
）と、導電性粒子としてカーボン・ブラックを（３３重
量部）とを混入したものである。EXAMPLES The present invention will be described in detail below. Low density polyethylene (100 parts by weight) as a crystalline resin, chlorinated polyethylene (65 parts by weight) as a resin containing a halogen element,
It contains diantimony trioxide (40 parts by weight) as a flame retardant additive and carbon black (33 parts by weight) as conductive particles.
上記構成において、正抵抗温度係数抵抗体内に三酸化二
アンチモンを有しているだめに、三酸化二アンチモンの
融点である６３０度以上の温度に５べ−７・
なると三酸化二アンチモンが融け、正抵抗温度係数抵抗
体表面に表面層を形成するために、正抵抗温度係数抵抗
体から酸素を遮断し、発火を防ぐという効果をもたらし
ている。また、塩素化ポリエチレンも高温になることに
よシ、塩素を発生し、正抵抗温度係数抵抗体と酸素を分
離する作用を有し、発火を防ぐ効果がある。In the above configuration, since diantimony trioxide is contained in the positive resistance temperature coefficient resistor, diantimony trioxide melts when the temperature reaches 630 degrees or higher, which is the melting point of diantimony trioxide. Since a surface layer is formed on the surface of the positive resistance temperature coefficient resistor, oxygen is blocked from the positive resistance temperature coefficient resistor, resulting in the effect of preventing ignition. Chlorinated polyethylene also generates chlorine when exposed to high temperatures, and has the effect of separating the positive resistance temperature coefficient resistor from oxygen, thereby preventing ignition.
なお、上記実施例では・・ロゲ、ン元素を含む樹脂とし
て塩素化ポリエチレンを用いたが、フッ素化ポリエチレ
ンを用いても同様の効果が得られるというのは明らかで
ある。In the above embodiments, chlorinated polyethylene was used as the resin containing the elements, but it is clear that the same effect can be obtained even if fluorinated polyethylene is used.
また、上記実施例では難燃性添加物として三酸イ仁１ニ
アンチモンを用いだが、水酸化アルミニウムを用いても
、同様な効果が得られる。Further, in the above embodiment, diantimony trioxide was used as the flame retardant additive, but the same effect can be obtained by using aluminum hydroxide.
なお、上記実施例では、結晶性樹脂として低密度ポリエ
チレンを用いたが、高密度ポリエチレン、中密度ポリエ
チレン、リニア低密度ポリエチレン、ポリプロピレン、
エチレン酢酸ビニル共重合体及びその混合物を用いても
、抵抗温度特性の抵抗値の立ち上がり温度には差がある
ものの、同様な効６ページ
果が得られる。In the above examples, low density polyethylene was used as the crystalline resin, but high density polyethylene, medium density polyethylene, linear low density polyethylene, polypropylene,
Even when ethylene vinyl acetate copolymer and mixtures thereof are used, similar effects can be obtained, although there are differences in the temperature at which the resistance value rises in the resistance temperature characteristic.
なお、上記実施例では、導電性粒子にカーボン・ブラッ
クを用いたが、金属粒子、導電性金属酸化物粒子を用い
ても同様な効果が得られるのは明らかである。In the above embodiment, carbon black was used as the conductive particles, but it is clear that similar effects can be obtained by using metal particles or conductive metal oxide particles.
発明の効果
以上のように本発明の正抵抗温度係数抵抗体によればノ
・ロゲン元素を含む樹脂と難燃性添加物を混入している
ために、他熱源によシ異常加熱を起こしたとしても、正
抵抗温度係数抵抗体から空気中の酸素を遮断することに
より発火を防ぐという効果が得られる。Effects of the Invention As described above, according to the positive resistance temperature coefficient resistor of the present invention, abnormal heating caused by other heat sources occurs due to the mixture of a resin containing a nitrogen element and a flame retardant additive. Even so, the effect of preventing ignition can be obtained by blocking oxygen in the air from the positive resistance temperature coefficient resistor.
図は従来の正抵抗温度係数抵抗体の抵抗温度特性 性１である。 The figure shows the resistance temperature characteristics of a conventional positive resistance temperature coefficient resistor. Gender 1.
Claims (8)
性添加物と、導電性粒子とから成る正抵抗温度係数抵抗
体。(1) A positive resistance temperature coefficient resistor comprising a crystalline resin, a resin containing a halogen element, a flame retardant additive, and conductive particles.
チレン酢酸ビニル共重合体の少なくとも１つを含む特許
請求の範囲第１項記載の正抵抗温度係数抵抗体。(2) The positive resistance temperature coefficient resistor according to claim 1, wherein the crystalline resin contains at least one of polyethylene, polypropylene, and ethylene-vinyl acetate copolymer.
の範囲第１項記載の正抵抗温度係数抵抗体。(3) A positive resistance temperature coefficient resistor according to claim 1, wherein the conductive particles are carbon black.
ン、塩素化ポリエチレンの少なくとも１つを含む特許請
求の範囲第１項記載の正抵抗温度係数抵抗体。(4) The positive resistance temperature coefficient resistor according to claim 1, wherein the resin containing a halogen element contains at least one of fluorinated polyethylene and chlorinated polyethylene.
ルミニウムの少なくとも１つを含む特許請求の範囲第１
項記載の正抵抗温度係数抵抗体。(5) Claim 1, wherein the flame retardant additive contains at least one of diantimony trioxide and aluminum hydroxide.
Positive resistance temperature coefficient resistor as described in section.
量部で１００対２０から１００対１００である特許請求
の範囲第１項〜第４項のいずれか一つに記載の正抵抗温
度係数抵抗体。(6) Positive resistance temperature according to any one of claims 1 to 4, wherein the ratio of the crystalline resin to the resin containing a halogen element is from 100:20 to 100:100 in parts by weight. Coefficient resistor.
５重量部から４０重量である特許請求の範囲第１項〜第
４項のいずれか一つに記載の正抵抗温度係数抵抗体。(7) The flame retardant additive is 1 part by weight per 100 parts by weight of the resin.
The positive resistance temperature coefficient resistor according to any one of claims 1 to 4, which has a weight of 5 to 40 parts by weight.
て、１０重量部から３５重量部の範囲で含まれる特許請
求の範囲第３項記載の正抵抗温度係数抵抗体。(8) The positive resistance temperature coefficient resistor according to claim 3, wherein carbon black is contained in an amount of 10 to 35 parts by weight based on 100 parts by weight of the resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7960685A JPS61239581A (en) | 1985-04-15 | 1985-04-15 | Positive resistance temperature coefficient resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7960685A JPS61239581A (en) | 1985-04-15 | 1985-04-15 | Positive resistance temperature coefficient resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61239581A true JPS61239581A (en) | 1986-10-24 |
Family
ID=13694672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7960685A Pending JPS61239581A (en) | 1985-04-15 | 1985-04-15 | Positive resistance temperature coefficient resistor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61239581A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991007804A1 (en) * | 1989-11-13 | 1991-05-30 | Nkk Corporation | Small dc motor |
-
1985
- 1985-04-15 JP JP7960685A patent/JPS61239581A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991007804A1 (en) * | 1989-11-13 | 1991-05-30 | Nkk Corporation | Small dc motor |
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