JPH03201311A - insulated wire - Google Patents
insulated wireInfo
- Publication number
- JPH03201311A JPH03201311A JP34348989A JP34348989A JPH03201311A JP H03201311 A JPH03201311 A JP H03201311A JP 34348989 A JP34348989 A JP 34348989A JP 34348989 A JP34348989 A JP 34348989A JP H03201311 A JPH03201311 A JP H03201311A
- Authority
- JP
- Japan
- Prior art keywords
- oxide layer
- metal oxide
- insulating metal
- insulated wire
- conductor
- 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
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 42
- 239000000919 ceramic Substances 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 18
- 150000004706 metal oxides Chemical class 0.000 claims description 36
- 239000004020 conductor Substances 0.000 claims description 27
- 150000004703 alkoxides Chemical class 0.000 claims description 4
- -1 organic acid salts Chemical class 0.000 claims description 4
- 239000002243 precursor Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000011368 organic material Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- 230000009970 fire resistant effect Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 3
- 239000000347 magnesium hydroxide Substances 0.000 description 3
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229920005672 polyolefin resin Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 235000019441 ethanol Nutrition 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- 238000003980 solgel method Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- 239000012700 ceramic precursor Substances 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UARGAUQGVANXCB-UHFFFAOYSA-N ethanol;zirconium Chemical compound [Zr].CCO.CCO.CCO.CCO UARGAUQGVANXCB-UHFFFAOYSA-N 0.000 description 1
- RZTAMFZIAATZDJ-UHFFFAOYSA-N felodipine Chemical compound CCOC(=O)C1=C(C)NC(C)=C(C(=O)OC)C1C1=CC=CC(Cl)=C1Cl RZTAMFZIAATZDJ-UHFFFAOYSA-N 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012702 metal oxide precursor Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/10—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances metallic oxides
- H01B3/105—Wires with oxides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
Landscapes
- Chemical & Material Sciences (AREA)
- Insulated Conductors (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Inorganic Insulating Materials (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、絶縁電線に関し、特に、高温や高真空の環
境ドて用いることのできる絶縁電線や耐火電線などに関
するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to insulated wires, and particularly to insulated wires and fire-resistant wires that can be used in high-temperature and high-vacuum environments.
［従来の技術］
従来から、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や自動車内の高温まで加熱され
る環境においては、ポリイミドやフッ素系樹脂等の耐熱
性有機樹脂が導体に被覆された絶縁電線が使用されてい
る。[Conventional technology] Heat-resistant organic resins such as polyimide and fluororesin have traditionally been used in equipment that requires safety under high temperatures, such as heating equipment and fire alarms, and in environments that are heated to high temperatures such as inside automobiles. An insulated wire with a conductor coated with is used.
また従来、特に高い耐熱性が要求される場合や高い真空
度が要求される環境においては、セラミックス製のガイ
シ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体が通された型式の、
Ｍ１ケーブル（Ｍｉｎｅｒａｌ Ｉｎ５ｕｌａｔｅｄ
Ｃａｂｌｅ）などが、使用されている。Conventionally, in cases where particularly high heat resistance is required or in environments where a high degree of vacuum is required, insulated wires in which the conductor is passed through a ceramic insulator tube and metal oxide fine particles such as magnesium oxide have been used. A type in which a conductor is passed through a heat-resistant alloy tube made of packed stainless steel, etc.
M1 cable (Mineral In5lated
Cable) etc. are used.
一方、高温環境下で使用でき、可撓性を備えた絶縁電線
としては、ガラス繊維が紡織されたものを絶縁部材とし
て使用するガラス編組絶縁電線などが挙げられる。On the other hand, examples of flexible insulated wires that can be used in high-temperature environments include glass braided insulated wires that use woven glass fibers as an insulating member.
また、耐熱性、絶縁性および熱放散性の良好な絶縁電線
としては、アルミニウム合金の線材に陽極酸化処理を施
した、いわゆるアルマイト電線が存７を三している。In addition, as insulated wires with good heat resistance, insulation properties, and heat dissipation properties, so-called alumite wires, which are aluminum alloy wires subjected to anodizing treatment, are widely used.
さらにまた、金属アルコキシドや金属有機酸塩などセラ
ミックス化可能な材料を用い、導体の周囲にセラミック
ス膜を形成させた絶縁電線も提案されている。Furthermore, an insulated wire in which a ceramic film is formed around a conductor using a material that can be made into a ceramic, such as a metal alkoxide or a metal organic acid salt, has been proposed.
［発明が解決しようとする課題］
前述の耐熱性有機樹脂が導体に被覆された絶縁電線では
、絶縁性を保持できる温度が高々３００°Ｃ程度である
。したがって、さらに高い温度でも絶縁性が要求される
用途には、このような絶縁電線を使用することはできな
かった。[Problems to be Solved by the Invention] In the insulated wire in which a conductor is coated with the above-mentioned heat-resistant organic resin, the temperature at which insulation can be maintained is about 300°C at most. Therefore, such insulated wires cannot be used in applications that require insulation even at higher temperatures.
一方、前述のセラミックス製のガイシ管に導体が通され
た型式の絶縁電線は、高温でも絶縁性を保持できるが、
可撓性に乏しいという欠点を有していた。また前述のＭ
１ケーブルは、高温でも絶縁性を保持でき、上記セラミ
ックス製のガイシ管に導体が通された型式のものに比べ
可撓性を有するが、大きな曲率で曲げ加工する場合に困
難さが伴っていた。On the other hand, the above-mentioned type of insulated wire in which the conductor is passed through a ceramic insulator tube can maintain its insulation properties even at high temperatures;
It had the disadvantage of poor flexibility. Also, the aforementioned M
1 cable can maintain its insulation properties even at high temperatures and is more flexible than the above-mentioned type in which the conductor is passed through a ceramic insulator tube, but it is difficult to bend with a large curvature. .
さらに、前述のガラス編組絶縁電線は、高温でも絶縁性
を保持でき、可撓性も良好である。しかし、ガスを放出
しやすく、高い真空度が要求される環境において使用す
ることができなかった。Furthermore, the above-mentioned glass braided insulated wire can maintain its insulation properties even at high temperatures and has good flexibility. However, it easily releases gas and cannot be used in environments that require a high degree of vacuum.
一方、前述のアルマイト電線は、高温でも絶縁性を保持
てき、若干の可撓性も有する。しかし、電線に用いられ
る導体がアルミニウム一種に限定されるので、電線の用
途が限定されていた。On the other hand, the above-mentioned alumite electric wire maintains its insulation properties even at high temperatures, and also has some flexibility. However, since the conductor used in the electric wire is limited to one type of aluminum, the uses of the electric wire are limited.
さらにまた、前述の導体の周囲にセラミックス層を形成
させた絶縁電線は、セラミックス層が単層で層の厚さが
薄い場合が多く、可撓性は良好であっても、絶縁破壊電
圧を高くすることが困難であるという問題があった。Furthermore, the aforementioned insulated wires with a ceramic layer formed around the conductor often have a single ceramic layer with a small thickness, and even though they have good flexibility, they have a high dielectric breakdown voltage. The problem was that it was difficult to do so.
そこで、この発明の目的は、上記の問題点を解消し、以
下の性質を備えた絶縁電線を提供するものである。Therefore, an object of the present invention is to solve the above problems and provide an insulated wire having the following properties.
（ａ） 高温でも絶縁性を保持できること。(a) Able to maintain insulation properties even at high temperatures.
（ｂ） 可撓性に優れていること。(b) Excellent flexibility.
（Ｃ） ガスを放出しないこと。(C) Do not release gas.
（ｄ） 多種の導体を用いることができること。(d) A wide variety of conductors can be used.
（ｅ） 高い絶縁破壊電圧を有すること。(e) It has a high dielectric breakdown voltage.
［課題を解決するための手段］
この発明の絶縁電線は導体と前記導体の周囲に形成され
る、第１の絶縁性金属酸化物層と、前記第１の絶縁性金
属酸化物層の周囲に形成される、添加により混合された
セラミックス粒子を含有した第２の絶縁性金属酸化物層
とを備えている。[Means for Solving the Problems] The insulated wire of the present invention includes a conductor, a first insulating metal oxide layer formed around the conductor, and a first insulating metal oxide layer formed around the first insulating metal oxide layer. a second insulating metal oxide layer containing additively mixed ceramic particles formed therein.
そして、前記第１の絶縁性金属酸化物層および／または
前記第２の絶縁性金属酸化物層は、Ｓｉ、Ｚｒ５ＡＱ、
、およびＴｉのアルコキシドまたは有機酸塩からなる群
から選択された化合物を少なくとも一種含む金属酸化物
の前駆体を導体の周囲に塗布してゾル−ゲル法や熱分解
法などの方法を用いて加熱によりセラミックス化させて
形成させることができる。The first insulating metal oxide layer and/or the second insulating metal oxide layer are made of Si, Zr5AQ,
, and a metal oxide precursor containing at least one compound selected from the group consisting of Ti alkoxides or organic acid salts is applied around the conductor and heated using a method such as a sol-gel method or a thermal decomposition method. It can be formed into a ceramic by using the above method.
また、前記セラミックス粒子は、微細板状の形状であれ
ば、より好ましい絶縁電線となる。Further, if the ceramic particles have a fine plate-like shape, the insulated wire becomes more preferable.
さらに、前記第１の絶縁性金属酸化物層は、層の厚さが
、１〜１０μｍであれば、可撓性のより優れた絶縁電線
となる。Furthermore, if the first insulating metal oxide layer has a thickness of 1 to 10 μm, the insulated wire will have better flexibility.
さらにまた、前記第２の絶縁性金属酸化物層の外側を有
機材料を含む絶縁材料で被覆すれば、保護皮膜を備えた
絶縁電線を提供することもできる。Furthermore, by coating the outside of the second insulating metal oxide layer with an insulating material containing an organic material, an insulated wire with a protective film can be provided.
なお、導体としては、導電性を有するものであれば特に
限定されるものではなく、たとえば熱電対やフレキシブ
ルプリント回路といったような用途に応じて、その形状
や材質を選定すればよい。Note that the conductor is not particularly limited as long as it has conductivity, and its shape and material may be selected depending on the intended use, such as a thermocouple or a flexible printed circuit.
［作用］
この発明の絶縁電線は、導体の周囲に融点が非常に高い
金属酸化物の絶縁層を備えているので、従来の耐熱性有
機樹脂を被覆した絶縁電線に比べ、高温でも絶縁性を保
持することができる。[Function] The insulated wire of the present invention has an insulating layer of a metal oxide with a very high melting point around the conductor, so it has better insulation properties even at high temperatures than conventional insulated wires coated with heat-resistant organic resin. can be retained.
また、この発明の絶縁電線は、ガスを放出しないので、
高真空の環境でも使用することができる。In addition, the insulated wire of this invention does not emit gas, so
It can also be used in high vacuum environments.
さらに、この発明において、絶縁性金属酸化物層に、セ
ラミックス粒子を添加することにより含有させるので、
絶縁性金属酸化物層を厚くすることができ、高い絶縁破
壊電圧を有する絶縁電線を得ることができる。Furthermore, in this invention, since ceramic particles are added to the insulating metal oxide layer,
The insulating metal oxide layer can be made thicker, and an insulated wire having a high dielectric breakdown voltage can be obtained.
また、第１の絶縁性金属酸化物層は厚くすることが困難
であり、第１の層のみ備えた絶縁電線は、絶縁破壊電圧
が低い。しかし、前記第１の絶縁性金属酸化物層は、導
体に密着しているので、可撓性に優れるほか、曲げ加工
等において極端な変形を受けても、絶縁性を保持するこ
とができる。Further, it is difficult to make the first insulating metal oxide layer thick, and an insulated wire including only the first layer has a low dielectric breakdown voltage. However, since the first insulating metal oxide layer is in close contact with the conductor, it has excellent flexibility and can maintain its insulation properties even if it is subjected to extreme deformation during bending or the like.
一方、第２の絶縁性金属酸化物層はセラミックスの前駆
体にセラミックス粒子を添加したものを導体に塗６ｉ
Ｌ、焼付けることにより容易に厚くすることができるの
で、高い絶縁性を有する。しかし、この層のみを導体の
周囲に形成させた場合、導体との密着性や層内の粒子の
結合性が前記第１の絶縁性金属酸化物層よりも劣るので
、曲げ加工等において極端な変形を受けると、層内に微
細なりラックが生じ、高い絶縁性を保持できなくなるお
それがある。On the other hand, the second insulating metal oxide layer is formed by coating the conductor with a ceramic precursor containing ceramic particles.
L. It has high insulation properties because it can be easily made thick by baking. However, when only this layer is formed around the conductor, the adhesion with the conductor and the bonding properties of the particles in the layer are inferior to those of the first insulating metal oxide layer, so extreme bending, etc. When deformed, fine racks are generated within the layer, which may result in the inability to maintain high insulation properties.
したがって、導体の周囲に上述した第１層、さらに第１
層の周囲に上述した第２層を重ねて形成させることで、
曲げ加工等において極端な変形を受は第２層に微細なり
ラックが生じても、第１層でくい止め、絶縁層全体とし
ては、高い絶縁性を保持することができる。Therefore, the above-mentioned first layer is placed around the conductor, and further the first layer is
By overlapping and forming the above-mentioned second layer around the layer,
Even if minute racks occur in the second layer due to extreme deformation during bending or the like, the first layer will stop the deformation, and the insulating layer as a whole can maintain high insulation properties.
第１および／または第２の絶縁性金属酸化物層の材料と
して、５ｉＳＺｒ、Ａ鉦、およびＴｉのアルコキシドま
たは有機酸塩を用いれば、これらの溶液からゾル−ゲル
法や熱分解法などの方法を用いて前駆体を調製し、この
前駆体を導体の周囲に塗布し、焼付けを行なうことによ
って、均質な絶縁層を形成させることができる。If alkoxides or organic acid salts of 5iSZr, Agon, and Ti are used as the materials for the first and/or second insulating metal oxide layers, these solutions can be processed using methods such as the sol-gel method and the thermal decomposition method. A homogeneous insulating layer can be formed by preparing a precursor using this method, coating the precursor around the conductor, and baking the precursor.
また、第２の絶縁性金属酸化物層に塗布前から添加によ
り含有されるセラミックス粒子が、微細板状の形状であ
れば、より高い絶縁破壊電圧を有する絶縁電線を得るこ
とができる。Moreover, if the ceramic particles added and contained in the second insulating metal oxide layer before coating have a fine plate-like shape, an insulated wire having a higher dielectric breakdown voltage can be obtained.
さらに、第１の絶縁性金属酸化物層の厚さが１〜１０μ
ｍであれば、より優れた可撓性を有する絶縁電線を得る
ことができる。Furthermore, the thickness of the first insulating metal oxide layer is 1 to 10 μm.
m, an insulated wire with better flexibility can be obtained.
さらにまた、第２の絶縁性金属酸化物層の外側に有機材
料を含む保護皮膜を備えることで、耐火電線として使用
することもできる。Furthermore, by providing a protective film containing an organic material on the outside of the second insulating metal oxide layer, the wire can be used as a fire-resistant wire.
［実施例］ （実施例１） 直径１ｍｍのニッケルめっき銅線を導体として用いた。[Example] (Example 1) A nickel-plated copper wire with a diameter of 1 mm was used as a conductor.
テトラエトキシシラン４モル％、水２４モル％およびエ
チルアルコール７１モル％の混合溶液に硝酸１モル％添
加する。この溶液を上述のニッケルめっき銅線に塗Ｔｈ
した後、温度５００℃において連続的に焼付けを行ない
、厚さ５μｍの第１の絶縁性シリコン酸化物層を形成さ
せた。1 mol% of nitric acid is added to a mixed solution of 4 mol% of tetraethoxysilane, 24 mol% of water and 71 mol% of ethyl alcohol. Apply this solution to the nickel-plated copper wire mentioned above.
After that, baking was performed continuously at a temperature of 500° C. to form a first insulating silicon oxide layer with a thickness of 5 μm.
さらに、テトラエトキシシラン４モル％、テトラエトキ
シジルコニウム１モル％、水１モル％およびエチルアル
コール９４モル％からなる溶液にセラミックス粒子とし
て平均粒径的２μｍのマイカを前記混合溶液１０部に対
し２部混合したものを上述の第１の絶縁性シリコン酸化
物層の周囲に塗布した後、温度６００℃において連続的
に焼付けを行ない、厚さ３５μｍの第２の絶縁性金属酸
化物層を形成させた。Furthermore, 2 parts of mica having an average particle diameter of 2 μm was added as ceramic particles to a solution consisting of 4 mol% of tetraethoxysilane, 1 mol% of tetraethoxyzirconium, 1 mol% of water, and 94 mol% of ethyl alcohol per 10 parts of the mixed solution. After the mixture was applied around the first insulating silicon oxide layer, baking was performed continuously at a temperature of 600°C to form a second insulating metal oxide layer with a thickness of 35 μm. .
第１図は、以上の過程により形成された絶縁電線の断面
図である。FIG. 1 is a cross-sectional view of an insulated wire formed by the above process.
銅１１の周囲にニッケルめっき層１２が形成された導体
の周囲に、第１の絶縁性金属酸化物層１３が形成され、
さらにその周囲にセラミックス粒子をＤｆ−ｉする第２
の絶縁性金属酸化物層１４が形成されている。A first insulating metal oxide layer 13 is formed around a conductor in which a nickel plating layer 12 is formed around copper 11,
Furthermore, a second process in which ceramic particles Df-i are placed around the ceramic particles.
An insulating metal oxide layer 14 is formed.
この絶縁電線の形成の過程において、第１の絶縁性金属
酸化物層のみ形成させたものについて、絶縁破壊電圧を
測定した結果、約５００Ｖであった。そして、セラミッ
クス粒子を含有する第２の絶縁性金属酸化物層まで形成
させた絶縁電線の絶縁破壊電圧をδＰＩ定した結果、１
２００Ｖ以上であつた。In the process of forming this insulated wire, the dielectric breakdown voltage of the wire in which only the first insulating metal oxide layer was formed was measured and found to be approximately 500V. Then, as a result of determining the dielectric breakdown voltage of the insulated wire formed up to the second insulating metal oxide layer containing ceramic particles by δPI, 1
It was over 200V.
したがって、この発明により、高い絶縁破壊電圧を有す
る絶縁電線を得られることが明らかとなった。Therefore, it has been revealed that the present invention makes it possible to obtain an insulated wire having a high dielectric breakdown voltage.
また、以上の過程により形成された絶縁電線を８５０℃
の温度で、３０分間、保持しても絶縁性は維持されてい
た。したがって、この発明により得られる絶縁電線は、
高温でも絶縁性を保持できることが明らかとなった。In addition, the insulated wire formed by the above process was heated to 850°C.
The insulation properties were maintained even after being held at a temperature of 30 minutes. Therefore, the insulated wire obtained by this invention is
It has become clear that insulation can be maintained even at high temperatures.
（実施例２）
実施例］で得られた絶縁電線を３本用い、３本を水酸化
マグネシウムを混合したポリオレフィン系樹脂で被覆し
、１本の電線となるようにした。(Example 2) Three insulated wires obtained in Example] were coated with a polyolefin resin mixed with magnesium hydroxide to form one wire.
第２図は、このようにして得られた電線の断面図である
。絶縁電線２１が３本集められ、それぞれが水酸化マグ
ネシウム混合ポリオレフィン系樹脂２２て被覆され１本
の電線となっている。FIG. 2 is a sectional view of the electric wire thus obtained. Three insulated wires 21 are collected, each coated with magnesium hydroxide mixed polyolefin resin 22 to form one wire.
上述の電線を８５０℃の温度で３０分間保持しても電線
として機能し続けた。Even when the above-mentioned wire was held at a temperature of 850° C. for 30 minutes, it continued to function as an electric wire.
［発明の効果］
以上説明したように、この発明は、高温でも絶縁性を保
持でき、可撓性に優れ、ガスを放出せず、多種の導体を
用いることができ、さらに高い絶縁破壊電圧を有する。[Effects of the Invention] As explained above, the present invention can maintain insulation properties even at high temperatures, has excellent flexibility, does not emit gas, can use a variety of conductors, and has a high dielectric breakdown voltage. have
したがって、高温および／または高真空の環境で用いら
れる電線の分野で、絶縁電線、耐火電線、熱電対および
フレキシブルプリント回路などに利用することができる
。Therefore, it can be used in the field of electric wires used in high-temperature and/or high-vacuum environments, such as insulated electric wires, fire-resistant electric wires, thermocouples, and flexible printed circuits.
特にこの発明は、耐熱性や不燃性を備え、１０００Ｖ程
度の耐電圧が必要な絶縁電線に有用であるほか、第２図
に示すような保護皮膜を備えた絶縁電線は、耐火電線と
しても有用である。In particular, this invention is useful for insulated wires that are heat resistant, nonflammable, and require a withstand voltage of about 1000V, and insulated wires with a protective film as shown in Figure 2 are also useful as fireproof wires. It is.
また、この発明は、多種の導体を用いることができ、可
撓性に優れた配線技術を提供するものであるため、高温
および／または高真空の環境で用いられるフレキシブル
プリント回路にも応用できるものである。Furthermore, since the present invention provides a wiring technology that can use a variety of conductors and has excellent flexibility, it can also be applied to flexible printed circuits used in high-temperature and/or high-vacuum environments. It is.
第１図、第２図は、この発明の絶縁電線の一例を示す断
面図である。
図において、１１は銅、１２はニッケルめっき層、１３
は第１の絶縁性金属酸化物層、１４はセラミックス粒子
含有の第２の絶縁性金属酸化物層、２１は絶縁電線、２
２は水酸化マグネシウム混合ポリオレフィン系樹脂を示
す。
第１図
１１：
１２：
１３：
１４：
銅
ニッケルめっき層
第１の絶縁性金属酸化物層
セラミックス粒子含有の第２の絶縁性
金属酸化物層FIGS. 1 and 2 are cross-sectional views showing an example of the insulated wire of the present invention. In the figure, 11 is copper, 12 is a nickel plating layer, and 13 is a nickel plating layer.
1 is a first insulating metal oxide layer; 14 is a second insulating metal oxide layer containing ceramic particles; 21 is an insulated wire;
2 represents a magnesium hydroxide mixed polyolefin resin. Figure 1 11: 12: 13: 14: Copper nickel plating layer First insulating metal oxide layer Second insulating metal oxide layer containing ceramic particles
Claims (5)
層と、 前記第１の絶縁性金属酸化物層の周囲に形成される、添
加により混合されたセラミックス粒子を含有する第２の
絶縁性金属酸化物層とを備える絶縁電線。(1) A conductor, a first insulating metal oxide layer formed around the conductor, and ceramic particles mixed by addition formed around the first insulating metal oxide layer. and a second insulating metal oxide layer containing.
記第２の絶縁性金属酸化物層が、Ｓｉ、Ｚｒ、Ａｌ、お
よびＴｉのアルコキシドまたは有機酸塩からなる群から
選択された化合物を少なくとも一種含む前駆体を焼付け
て形成されるものである、請求項１記載の絶縁電線。(2) The first insulating metal oxide layer and/or the second insulating metal oxide layer is a compound selected from the group consisting of alkoxides or organic acid salts of Si, Zr, Al, and Ti. The insulated wire according to claim 1, which is formed by baking a precursor containing at least one of the above.
、請求項１または２に記載の絶縁電線。(3) The insulated wire according to claim 1 or 2, wherein the ceramic particles have a fine plate shape.
０μｍの範囲である、請求項１〜３のいずれか１項に記
載の絶縁電線。(4) The thickness of the first insulating metal oxide layer is 1 to 1
The insulated wire according to any one of claims 1 to 3, having a thickness in the range of 0 μm.
を含む保護皮膜をさらに備えた、請求項１〜４のいずれ
か１項に記載の絶縁電線。(5) The insulated wire according to any one of claims 1 to 4, further comprising a protective film containing an organic material on the outside of the second insulating metal oxide layer.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34348989A JPH03201311A (en) | 1989-12-27 | 1989-12-27 | insulated wire |
| PCT/JP1990/001700 WO1991010238A1 (en) | 1989-12-27 | 1990-12-26 | Insulated wire |
| DE69033532T DE69033532D1 (en) | 1989-12-27 | 1990-12-26 | INSULATED WIRE |
| EP91901438A EP0460238B1 (en) | 1989-12-27 | 1990-12-26 | Insulated wire |
| CA 2050339 CA2050339C (en) | 1989-12-27 | 1990-12-26 | Insulated wire for high temperature use |
| US07/989,064 US5336851A (en) | 1989-12-27 | 1992-12-11 | Insulated electrical conductor wire having a high operating temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34348989A JPH03201311A (en) | 1989-12-27 | 1989-12-27 | insulated wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03201311A true JPH03201311A (en) | 1991-09-03 |
Family
ID=18361918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34348989A Pending JPH03201311A (en) | 1989-12-27 | 1989-12-27 | insulated wire |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0460238B1 (en) |
| JP (1) | JPH03201311A (en) |
| CA (1) | CA2050339C (en) |
| DE (1) | DE69033532D1 (en) |
| WO (1) | WO1991010238A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04179002A (en) * | 1990-11-13 | 1992-06-25 | Yazaki Corp | Ceramic-coating heat resistance insulation wire |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7795538B2 (en) | 2007-11-06 | 2010-09-14 | Honeywell International Inc. | Flexible insulated wires for use in high temperatures and methods of manufacturing |
| GB0810572D0 (en) * | 2008-06-10 | 2008-07-16 | Univ Teeside | Electrically insulating coating and method |
| US8680397B2 (en) | 2008-11-03 | 2014-03-25 | Honeywell International Inc. | Attrition-resistant high temperature insulated wires and methods for the making thereof |
| GB201308704D0 (en) * | 2013-05-15 | 2013-06-26 | Rolls Royce Plc | Electrical apparatus encapsulant |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53136009A (en) * | 1977-05-04 | 1978-11-28 | Riken Keikinzoku Kogyo Kk | Aluminium oxide structures |
| JPS5818809A (en) * | 1981-07-24 | 1983-02-03 | 株式会社デンソー | Overload resistant insulating wire and method of producing same |
| JPS63281313A (en) * | 1987-05-12 | 1988-11-17 | Sumitomo Electric Ind Ltd | heat resistant wire |
| SE469170B (en) * | 1988-06-14 | 1993-05-24 | Gte Valenite Corp | COMPOSITIVE COATINGS ON ELIGIBLE SUBSTRATE AND PROCEDURES FOR PREPARING THEREOF |
| JPH02123618A (en) * | 1988-11-02 | 1990-05-11 | Opt D D Meruko Lab:Kk | Heat resistant insulated wire |
-
1989
- 1989-12-27 JP JP34348989A patent/JPH03201311A/en active Pending
-
1990
- 1990-12-26 WO PCT/JP1990/001700 patent/WO1991010238A1/en not_active Ceased
- 1990-12-26 CA CA 2050339 patent/CA2050339C/en not_active Expired - Fee Related
- 1990-12-26 EP EP91901438A patent/EP0460238B1/en not_active Expired - Lifetime
- 1990-12-26 DE DE69033532T patent/DE69033532D1/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04179002A (en) * | 1990-11-13 | 1992-06-25 | Yazaki Corp | Ceramic-coating heat resistance insulation wire |
Also Published As
| Publication number | Publication date |
|---|---|
| DE69033532D1 (en) | 2000-06-08 |
| EP0460238B1 (en) | 2000-05-03 |
| WO1991010238A1 (en) | 1991-07-11 |
| EP0460238A1 (en) | 1991-12-11 |
| CA2050339A1 (en) | 1991-06-28 |
| CA2050339C (en) | 1997-12-02 |
| EP0460238A4 (en) | 1992-11-25 |
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