JPH031407A - Insulated wire - Google Patents
Insulated wireInfo
- Publication number
- JPH031407A JPH031407A JP13774689A JP13774689A JPH031407A JP H031407 A JPH031407 A JP H031407A JP 13774689 A JP13774689 A JP 13774689A JP 13774689 A JP13774689 A JP 13774689A JP H031407 A JPH031407 A JP H031407A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- insulated wire
- innermost layer
- component
- ceramics
- 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
- 239000000919 ceramic Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 13
- 238000000576 coating method Methods 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 5
- 150000004703 alkoxides Chemical class 0.000 claims description 4
- 239000010407 anodic oxide Substances 0.000 claims description 3
- 238000006482 condensation reaction Methods 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 239000011368 organic material Substances 0.000 abstract description 10
- 239000004020 conductor Substances 0.000 abstract description 6
- 239000010410 layer Substances 0.000 abstract 7
- 239000011229 interlayer Substances 0.000 abstract 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920002050 silicone resin Polymers 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- -1 AfL20s Substances 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002815 nickel Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、たとえば、高温使用機器等高温度の環境下に
おいて用いられる配線用電線や巻線用電線等の絶縁電線
に関し、詳しくは、導線の外周に絶縁材料からなる被覆
絶縁部が形成されている絶縁電線に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to insulated wires such as wiring wires and winding wires used in high-temperature environments such as high-temperature equipment. The present invention relates to an insulated wire having a coated insulation part made of an insulating material formed on the outer periphery of the wire.
［従来の技術］
従来において、絶縁電線は、加熱設備や火災報知機など
の高温下における安全性が要求される設備に使用される
ことが多々ある。また、絶縁電線は、自動車内の高温度
に加熱される環境下においても用いられることがある。[Prior Art] In the past, insulated wires have often been used in equipment that requires safety under high temperatures, such as heating equipment and fire alarms. Furthermore, insulated wires are sometimes used in environments that are heated to high temperatures inside automobiles.
このような絶縁電線としては、従来から、導線にポリイ
ミドやフッ素系樹脂等の耐熱性有機樹脂が被覆された絶
縁電線が使用されている。As such an insulated wire, an insulated wire in which a conducting wire is coated with a heat-resistant organic resin such as polyimide or fluororesin has been used.
しかし、高い耐熱性が要求される用途に使用する場合に
は、有機物被覆だけでは、耐熱性や難燃性等の点で不十
分である。そこで、セラミックス製の碍子管に導体が通
された型式の絶縁電線や、酸化マグネシウムなどの金属
酸化物微粒子が詰められた、ステンレス合金等からなる
耐熱合金製の管に導線が通された型式のＭＩケーブル（
Ｍｉｎｅｒａｌ Ｉｎ５ｕｌａｔｅｄ Ｃａｂｌｅ
）などが、そのような用途に使用されてきた。However, when used in applications requiring high heat resistance, organic coating alone is insufficient in terms of heat resistance, flame retardance, etc. Therefore, we have introduced insulated wires in which the conductor is passed through a ceramic insulator tube, and insulated wires in which the conductor is passed through a tube made of a heat-resistant alloy such as stainless steel alloy, which is filled with fine particles of metal oxide such as magnesium oxide. MI cable (
Mineral In5lated Cable
) have been used for such purposes.
［発明が解決しようとする課題］
しかし、前述した耐熱性を有する有機樹脂が被覆された
絶縁電線においては、可撓性の点では優れているものの
絶縁性が保たれ得る最高温度は、たかだか２００℃程度
である。そのため、２００℃以上の高い温度下において
絶縁性の保証が要求される用途には、このような有機物
絶縁被覆電線を使用することはできなかった。[Problems to be Solved by the Invention] However, although the insulated wire coated with the heat-resistant organic resin described above has excellent flexibility, the maximum temperature at which insulation can be maintained is at most 200°C. It is about ℃. Therefore, it has not been possible to use such organic insulated wires in applications where insulation is required to be guaranteed at high temperatures of 200° C. or higher.
また、前記セラミックス製の碍子管を用いて耐熱性が高
められた絶縁電線や１Ｍケーブルは、可撓性に乏しいた
め作業性に劣るという欠点を有する。Furthermore, insulated wires and 1M cables whose heat resistance is improved by using the ceramic insulator tubes have a drawback of poor workability due to their lack of flexibility.
つまり、従来においては、耐熱性を向上させる要求と、
可撓性を高めて作業性を向上させる要求とが二律背反の
性格を有し、その両要求をともに満足する絶縁電線は存
在しなかった。In other words, in the past, the demand for improving heat resistance,
The requirements for increasing flexibility and improving workability are contradictory, and there has been no insulated wire that satisfies both requirements.
本発明の目的は、かかる実情に鑑み、耐熱性を向上させ
ることができながらも、可撓性に富み作業性に優れた絶
縁電線を提供する点にある。In view of the above circumstances, an object of the present invention is to provide an insulated wire that is highly flexible and has excellent workability while being able to improve heat resistance.
［課題を解決するための手段］
請求項１に記載の本発明は、導線の外周に絶縁材料から
なる被覆絶縁部が形成されている絶縁電線であっ“Ｃ１
前記被覆絶縁部における前記導線に近い内方部分の成分
が、外方部分の成分に比べてセラミックスの割合が高く
構成されている・ことを特徴とする。[Means for Solving the Problems] The present invention as set forth in claim 1 provides an insulated wire in which a covering insulating portion made of an insulating material is formed on the outer periphery of the conductor wire.
It is characterized in that a component of an inner portion of the insulating cover portion near the conductive wire has a higher proportion of ceramics than a component of the outer portion.
本発明に係る請求項２に記載の絶縁電線は、前記請求項
１に記載の被覆絶縁部が、前記導線に近い内層と該内層
よりも外方に位置する外層とを含む多層構造に構成され
、前記内層が、比較的高い第１の割合でセラミックスを
含む材料で構成され、前記外層が、前記第１の割合より
も低い第２の割合でセラミックスを含む材料で構成され
ていることを特徴とする。In the insulated wire according to claim 2 of the present invention, the covered insulation portion according to claim 1 has a multilayer structure including an inner layer close to the conductive wire and an outer layer located outside the inner layer. , wherein the inner layer is composed of a material containing ceramics at a relatively high first proportion, and the outer layer is composed of a material containing ceramics at a second proportion lower than the first proportion. shall be.
本発明に係る請求項３に記載の絶縁電線は、前記請求項
２に記載の多層構造からなる被覆絶縁部における最内層
を構成している材料が含んでいる有機物質の割合が２％
未満であることを特徴とする。In the insulated wire according to claim 3 of the present invention, the material constituting the innermost layer of the coated insulating part having the multilayer structure according to claim 2 contains an organic substance of 2%.
It is characterized by being less than or equal to
本発明に係る請求項４に記載の絶縁電線は、前記請求項
２に記載の多層構造からなる被覆絶縁部における最内層
が、金属のアルコキシドを原料として加水分解とそれに
続く脱水縮合反応によるセラミックス化した材料を含む
ことを特徴とする。In the insulated wire according to claim 4 of the present invention, the innermost layer of the coated insulating portion having the multilayer structure according to claim 2 is formed into a ceramic by hydrolysis and subsequent dehydration condensation reaction using a metal alkoxide as a raw material. It is characterized by containing a material that is
本発明に係る請求項５に記載の絶縁電線は、前記請求項
２に記載の多層構造からなる被覆絶縁部における最内層
が、陽極酸化物で構成されていることを特徴とする。The insulated wire according to claim 5 of the present invention is characterized in that the innermost layer of the coated insulating portion having the multilayer structure according to claim 2 is made of an anodic oxide.
本発明に係る請求項６に記載の絶縁電線は、前記請求項
１に記載の導線と被覆絶縁部との間に、金属を主成分と
する層であって密着性や耐酸化性を改善させるための仲
介層を有することを特徴とする。The insulated wire according to claim 6 of the present invention includes a layer containing metal as a main component between the conductive wire according to claim 1 and the covered insulating part to improve adhesion and oxidation resistance. It is characterized by having an intermediary layer for
［作用］
請求項１に記載の発明においては、導線の被覆絶縁部に
セラミックスが含まれているため、耐熱性が向上され、
しかも、前記被覆絶縁部における外方部分よりも導線に
近い内方部分においてセラミックスの割合を高く構成し
たため、セラミックスの混入に伴う絶縁電線の曲げ剛性
の増大化を極力抑えることができる。[Function] In the invention according to claim 1, since the insulation coating of the conductive wire contains ceramics, the heat resistance is improved,
Moreover, since the proportion of ceramics is higher in the inner part of the insulated covering part that is closer to the conducting wire than in the outer part, it is possible to minimize the increase in bending rigidity of the insulated wire due to the mixing of ceramics.
請求項２に記載の発明においては、前記請求項１に記載
した被覆絶縁部が、導線に近い内層と外方に位置する外
層とを含む多層構造に構成されているため、セラミック
スの割合の高い内層とセラミックスの割合の低い外層と
を形成するという工業的に生産しやすいものとなる。In the invention according to claim 2, since the covering insulation part according to claim 1 has a multilayer structure including an inner layer close to the conductive wire and an outer layer located outside, the coating insulation part has a high proportion of ceramics. It is easy to produce industrially by forming an inner layer and an outer layer with a low proportion of ceramics.
請求項３に記載の発明においては、前記請求項２に記載
の被覆絶縁部における最内層を構成している材料が含ん
でいる有機物質の割合が２％未満であるため、最内層が
確実な耐熱性を有する。In the invention according to claim 3, since the material constituting the innermost layer in the covering insulation part according to claim 2 contains less than 2% of organic substances, the innermost layer is Has heat resistance.
請求項４に記載の発明においては、前記請求項２に記載
の被覆絶縁部における最内層が、金属のアルコキシドを
原料として加水分解とそれに続く脱水縮合反応によるセ
ラミックス化した材料からなるため、その最内層を良好
にかつ容易に形成することができる。In the invention according to claim 4, the innermost layer in the insulating coating section according to claim 2 is made of a material made of a metal alkoxide and made into ceramic through hydrolysis and subsequent dehydration condensation reaction. The inner layer can be formed well and easily.
請求項５に記載の発明においては、前記請求項２に記載
の被覆絶縁部における最内層が、陽極酸化物で構成され
ているため、その最内層が陽極酸化によって良好にかつ
容易に形成できる。In the invention set forth in claim 5, since the innermost layer in the covered insulating portion set forth in claim 2 is made of an anodic oxide, the innermost layer can be formed satisfactorily and easily by anodic oxidation.
請求項６に記載の発明においては、前記請求項１に記載
の導線と被覆絶縁部との間に、金属を主体とする仲介層
を有するため、前記導線と被覆絶縁部との密着性が向上
されたり前記導線の耐酸化性が改善される。In the invention according to claim 6, since an intermediary layer mainly made of metal is provided between the conductive wire according to claim 1 and the covered insulating part, the adhesion between the conductive wire and the covered insulated part is improved. and the oxidation resistance of the conductive wire is improved.
［発明の実施例］ 次に、本発明の実施例を図面に基づいて説明する。[Embodiments of the invention] Next, embodiments of the present invention will be described based on the drawings.
第１の実施例
本発明に係る絶縁電線の第１の実施例を第１図に基づい
て説明する。銅を主成分とする導線１０の外周表面は、
ニッケルがめっきされている。そしてニッケルがめっき
された導線１０の外周に、被覆絶縁部の最内層１１が形
成されている。この最内層は、５ｉ０２を主成分とし、
有機成分が２％未満好ましくは１％未満含まれている。First Embodiment A first embodiment of an insulated wire according to the present invention will be described with reference to FIG. The outer peripheral surface of the conductive wire 10 whose main component is copper,
Nickel plated. The innermost layer 11 of the insulation coating is formed around the outer periphery of the nickel-plated conductive wire 10. This innermost layer mainly contains 5i02,
It contains less than 2% organic components, preferably less than 1%.
そしてその肉厚は約５μｍである。本来、耐熱性および
耐火性を向上させるために１よ、この最内層１１は１０
０％セラミックスで構成するのが望ましいが、１００セ
ラミツクスで構成すると可撓性が低下し作業性が悪くな
るため、わずかに有機成分を混入している。そしてこの
最内層１１の肉厚は、２０μｍ以下であれば前記５μｍ
に限定されない。そしてこの最内層１１の製法としては
、金属アルコキシド等を原材料に塗布し、焼付けること
によりセラミックス化させるいわゆるゾルゲル法を用い
る。And its wall thickness is about 5 μm. Originally, this innermost layer 11 was made of 10 to improve heat resistance and fire resistance.
It is preferable to use 0% ceramic, but since 100% ceramic reduces flexibility and makes workability worse, a small amount of organic component is mixed. If the thickness of this innermost layer 11 is 20 μm or less, the thickness is 5 μm or less.
but not limited to. The innermost layer 11 is manufactured by a so-called sol-gel method in which metal alkoxide or the like is applied to a raw material and baked to form a ceramic material.
次に、前記最内層１１の外方に被覆絶縁部の中間層１２
が形成されている。この中間層１２は、好ましくは有機
材料が占める量の割合が、２０〜８０％の材料で構成さ
れている。具体的には、ポリオレフィン３０％とＭｇ
（ＯＨ）２７０％を混合した材料で構成され、その肉厚
が１５μｍ程度に構成されている。このような割合で有
機材料が含まれているため、この中間層１２においては
、可撓性を有しながらもセラミックス成分の存在により
難燃性や耐熱性をも有する。この中間層１２の存在によ
り、前記最内層１１の一部に応力が生じてクラックが生
じたり剥離したるすることが極力防止できる。Next, an intermediate layer 12 of the covering insulation part is placed on the outer side of the innermost layer 11.
is formed. This intermediate layer 12 is preferably composed of a material in which the proportion of the amount occupied by an organic material is 20 to 80%. Specifically, 30% polyolefin and Mg
It is made of a material containing 270% (OH) and has a thickness of about 15 μm. Since the organic material is contained in such a proportion, the intermediate layer 12 has flexibility, but also has flame retardancy and heat resistance due to the presence of the ceramic component. The presence of this intermediate layer 12 makes it possible to prevent cracking or peeling due to stress occurring in a portion of the innermost layer 11 as much as possible.
前記中間層１２の外方には、最外層１３が形成されてい
る。この最外層１３は、前記中間層１２よりもさらに一
層有機材料成分を多くし、好ましくは、有機材料成分が
５０％以上の材料で構成し、場合によっては有機材料成
分が１００％の材料で構成してもよい。この最外層１３
により、可撓性がより一層向上できるとともに、絶縁電
線の滑りを良くして作業性をさらに一層改善でき、しか
も、容易な方法の被覆（たとえば押出しや薬剤、薬液の
塗布焼付け）により、外傷防止や、室内での高い電機抵
抗特性を保証できる。但し、有機材料成分が覆い材料で
構成されている場合には、この最外層１３の肉厚をあま
り熱くし過ぎると耐年性に劣るようになるため、有機材
料の占める割合に応じて最外層１３の肉厚を調整するの
がよく、一般的には３０μｍ程度が望ましい。この最外
層１３に用いられる有機材料、もしくは無機材料を含む
有機材料としては、難燃性ポリオレフィンや、エチレン
と他のモノマーの共重合体や、シリコン樹脂、フッ化物
樹脂等に対し、ＡｆＬ２０ｓ 、ＭｇＯ。An outermost layer 13 is formed outside the intermediate layer 12 . This outermost layer 13 contains an even larger amount of organic material than the intermediate layer 12, and is preferably made of a material containing 50% or more of the organic material, and may be made of a material containing 100% of the organic material as the case may be. You may. This outermost layer 13
As a result, flexibility can be further improved, and workability can be further improved by improving the slippage of insulated wires.Furthermore, by coating using easy methods (for example, extrusion, coating with chemicals, and baking), damage prevention can be achieved. It also guarantees high electrical resistance characteristics indoors. However, if the organic material component is composed of a covering material, if the thickness of the outermost layer 13 is made too hot, the durability will be poor, so the thickness of the outermost layer 13 should be It is best to adjust the wall thickness of 13, and generally it is desirable that it be about 30 μm. Examples of organic materials or organic materials containing inorganic materials used for this outermost layer 13 include flame-retardant polyolefin, copolymers of ethylene and other monomers, silicone resins, fluoride resins, AfL20s, MgO, etc. .
Ｍｇ （ＯＨ）２等のセラミックス粒体を混合したもの
を用いる。A mixture of ceramic particles such as Mg (OH)2 is used.
前記導線１０の外周面のニッケルめっき層により、導線
１０とその外周を被覆している被覆絶縁部との密着性が
改善され、かつ導線１０の耐酸化性が向上される。この
ニッケルめっき層により、密着性や耐酸化性を改善する
ための金属を主体とする中介層が構成されている。The nickel plating layer on the outer circumferential surface of the conducting wire 10 improves the adhesion between the conducting wire 10 and the insulating coating covering the outer periphery thereof, and improves the oxidation resistance of the conducting wire 10. This nickel plating layer constitutes an intermediate layer mainly made of metal to improve adhesion and oxidation resistance.
第２の実施例
次に、第２図に基づいて第２の実施例を説明する。導線
２０はアルミニウムから構成されており、その径が約１
．０ｍｍである。そしてこの導線２０の外周に最内層２
１が形成されている。この最内層２１は、導線２０が陽
極酸化可能な材料であるため、陽極酸化法による酸化物
層すなわちアルマイト（アルミニウムの陽極酸化）で構
成されている。そしてその肉厚は約１０μｍである。Second Embodiment Next, a second embodiment will be explained based on FIG. The conductive wire 20 is made of aluminum and has a diameter of about 1
．． It is 0mm. Then, the innermost layer 2 is placed on the outer periphery of this conductive wire 20.
1 is formed. Since the conductive wire 20 is made of a material that can be anodized, the innermost layer 21 is made of an oxide layer formed by an anodic oxidation method, that is, alumite (anodized aluminum). And its wall thickness is about 10 μm.
前記最内層２１の外方には、中間層２２が形成されてい
る。この中間層２２は、ＡｍｚＯａ粒（５０％）とシリ
コン樹脂（５０％）とからなる層である。そしてその肉
厚は約１５μｍである。An intermediate layer 22 is formed outside the innermost layer 21 . This intermediate layer 22 is a layer consisting of AmzOa grains (50%) and silicone resin (50%). And its wall thickness is about 15 μm.
前記中間層２２の外方にはさらに最外層２３が形成され
ている。この最外層２３は、シリコン樹脂層であり、そ
の肉厚が約１０μｍである。なお、前記第１．第２の実
施例では、被覆絶縁部が３層に構成されたものを示した
が、本発明はこれに限らず、２層または４層以上でもよ
く、さらには、層を形成することなく、導線２０に近い
内方部分が外方部分に比べてそのセラミックス成分の割
合が高く構成されたものであってもよい。An outermost layer 23 is further formed outside the intermediate layer 22 . This outermost layer 23 is a silicone resin layer and has a thickness of about 10 μm. In addition, the above-mentioned No. 1. In the second embodiment, the covering insulating part is composed of three layers, but the present invention is not limited to this, and may have two or four or more layers, and furthermore, without forming any layers, The inner portion near the conducting wire 20 may have a higher proportion of ceramic components than the outer portion.
［発明の効果コ 前記構成を有する本発明は以下の効果を有する。[Effects of invention The present invention having the above configuration has the following effects.
請求項１に記載の発明は、被覆絶縁部にセラミックスを
混入して耐熱性が向上できながらも、セラミックスの混
入に伴う絶縁電線の曲げ剛性の増大化を極力抑え、可撓
性を失わず作業性に優れた絶縁電線を提供し得るに至っ
た。The invention according to claim 1 improves the heat resistance by mixing ceramics into the insulating coating, while minimizing the increase in bending rigidity of the insulated wire due to the mixing of ceramics, and making it possible to work without losing flexibility. We have now been able to provide an insulated wire with excellent properties.
請求項２に記載の本発明は、被覆絶縁部が多層構造であ
るため、セラミックスの割合の高い内層とセラミックス
の割合の低い外層とを形成すればよく、工業的に生産に
適している効果を有する。In the present invention as set forth in claim 2, since the covering insulation part has a multilayer structure, it is sufficient to form an inner layer with a high proportion of ceramics and an outer layer with a low proportion of ceramics, thereby achieving an effect suitable for industrial production. have
請求項３に記載の本発明は、最内層が含む有機物質の割
合が２％未満であるため、その最内層が確実な耐熱性を
有する効果を有する。According to the third aspect of the present invention, since the innermost layer contains less than 2% of the organic substance, the innermost layer has reliable heat resistance.
請求項４に記載の本発明は、耐熱性に優れた最内層が容
易にかつ良好に製造できる効果を有する。The present invention as set forth in claim 4 has the effect that the innermost layer having excellent heat resistance can be manufactured easily and satisfactorily.
請求項５に記載の本発明は、耐熱性に優れた最内層が、
陽極酸化の方法を利用して容易にかつ良好に製造できる
効果を奏する。In the present invention according to claim 5, the innermost layer having excellent heat resistance is
It has the advantage that it can be manufactured easily and favorably using the anodic oxidation method.
請求項６に記載の本発明は、仲介層の働きにより、導線
と被覆絶縁部との密着性や導線の耐酸化性が改善できる
効果を奏する。The present invention as set forth in claim 6 has the effect that the adhesion between the conducting wire and the insulating cover and the oxidation resistance of the conducting wire can be improved by the function of the intermediary layer.
第１図は、本発明に係る絶縁電線の一実施例を示す図で
あり、絶縁電線の横断面図である。
第２図は、本発明に係る絶縁電線の他の実施例を示す図
であり、絶縁電線の横断面図である。
図中、１０．２０は導線、１１．２１は最内層、１２．
２２は中間層、１３．２３は最外層である。
第１図
第２図FIG. 1 is a diagram showing one embodiment of an insulated wire according to the present invention, and is a cross-sectional view of the insulated wire. FIG. 2 is a diagram showing another embodiment of the insulated wire according to the present invention, and is a cross-sectional view of the insulated wire. In the figure, 10.20 is a conductor, 11.21 is the innermost layer, 12.
22 is the middle layer, and 13.23 is the outermost layer. Figure 1 Figure 2
Claims (6)
されている絶縁電線であって、 前記被覆絶縁部における前記導線に近い内方部分の成分
が、外方部分の成分に比べてセラミックスの割合が高く
構成されている、絶縁電線。(1) An insulated wire in which a covered insulating part made of an insulating material is formed around the outer periphery of the conducting wire, wherein the component in the inner part of the covered insulating part near the conducting wire is more ceramic than the component in the outer part. An insulated wire consisting of a high proportion of
よりも外方に位置する外層とを含む多層構造に構成され
、 前記内層が、比較的高い第１の割合でセラミックスを含
む材料で構成され、 前記外層が、前記第１の割合よりも低い第２の割合でセ
ラミックスを含む材料で構成されている、請求項１記載
の絶縁電線。(2) The insulating cover has a multilayer structure including an inner layer close to the conductive wire and an outer layer located outside the inner layer, and the inner layer is made of a material containing ceramic at a relatively high first proportion. The insulated wire according to claim 1, wherein the outer layer is made of a material containing ceramics at a second ratio lower than the first ratio.
を構成している材料が含んでいる有機物質の割合が２％
未満である、請求項２記載の絶縁電線。(3) The proportion of organic substances contained in the material constituting the innermost layer of the multilayered insulation coating is 2%.
The insulated wire according to claim 2, which is less than 100%.
が、金属のアルコキシドを原料として加水分解とそれに
続く脱水縮合反応によるセラミックス化した材料を含む
、請求項２記載の絶縁電線。(4) The insulated wire according to claim 2, wherein the innermost layer of the coated insulating part having the multilayer structure includes a material made of a metal alkoxide as a raw material by hydrolysis and subsequent dehydration condensation reaction.
が、陽極酸化物で構成されている、請求項２記載の絶縁
電線。(5) The insulated wire according to claim 2, wherein the innermost layer of the coated insulating portion having the multilayer structure is made of an anodic oxide.
分とする層であって密着性あるいは耐酸化性を向上させ
るための仲介層を有する、請求項１記載の絶縁電線。(6) The insulated wire according to claim 1, further comprising an intermediary layer between the conductive wire and the insulated covering portion, which is a layer containing metal as a main component and improves adhesion or oxidation resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13774689A JPH031407A (en) | 1989-05-30 | 1989-05-30 | Insulated wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13774689A JPH031407A (en) | 1989-05-30 | 1989-05-30 | Insulated wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH031407A true JPH031407A (en) | 1991-01-08 |
Family
ID=15205863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13774689A Pending JPH031407A (en) | 1989-05-30 | 1989-05-30 | Insulated wire |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH031407A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020056611A (en) * | 2018-09-28 | 2020-04-09 | シチズンファインデバイス株式会社 | Pressure detector |
-
1989
- 1989-05-30 JP JP13774689A patent/JPH031407A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020056611A (en) * | 2018-09-28 | 2020-04-09 | シチズンファインデバイス株式会社 | Pressure detector |
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