JPS62186415A - Magnet wire for water-proof sumerged motor - Google Patents
Magnet wire for water-proof sumerged motorInfo
- Publication number
- JPS62186415A JPS62186415A JP2780286A JP2780286A JPS62186415A JP S62186415 A JPS62186415 A JP S62186415A JP 2780286 A JP2780286 A JP 2780286A JP 2780286 A JP2780286 A JP 2780286A JP S62186415 A JPS62186415 A JP S62186415A
- Authority
- JP
- Japan
- Prior art keywords
- enamel layer
- water
- synthetic resin
- layer
- resin
- 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.)
- Granted
Links
- 210000003298 dental enamel Anatomy 0.000 claims description 45
- 229920003002 synthetic resin Polymers 0.000 claims description 29
- 239000000057 synthetic resin Substances 0.000 claims description 29
- 238000004804 winding Methods 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 4
- 229920003055 poly(ester-imide) Polymers 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 239000005977 Ethylene Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 3
- 239000004962 Polyamide-imide Substances 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 229920002312 polyamide-imide Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 235000006650 Syzygium cordatum Nutrition 0.000 description 7
- 240000005572 Syzygium cordatum Species 0.000 description 7
- 229920006122 polyamide resin Polymers 0.000 description 6
- 239000011241 protective layer Substances 0.000 description 6
- 238000005452 bending Methods 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 150000003949 imides Chemical class 0.000 description 3
- JHWNWJKBPDFINM-UHFFFAOYSA-N Laurolactam Chemical compound O=C1CCCCCCCCCCCN1 JHWNWJKBPDFINM-UHFFFAOYSA-N 0.000 description 2
- 229920000299 Nylon 12 Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 241000345998 Calamus manan Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000012950 rattan cane Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
- Insulation, Fastening Of Motor, Generator Windings (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〕 本発明は水封式水中電動機用巻線に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a winding for a water-sealed underwater motor.
水封式水中電動機用巻線に使用される絶縁電線（１）と
して、第３図に示されるように軟銅線などの導線（２）
の外周に、合成樹脂エナメル層（３）を設け、その上に
架橋ポリエチレン、エチレンプロピレン、ポリプロピレ
ンなどの合成樹脂を所定の厚さに押し出し、主絶縁層（
４）を形成した電線が広く使用されてきている。又、電
線を固定子鉄心に巻き込む場合の主絶縁層（４）に与え
られる損傷を防ぐなどの目的で、更に主絶縁層（４）の
周囲にナイロン６、ナイロン１２など耐摩耗特性に優れ
た合成樹脂保護層（５）を設けた電線も広く採用されて
いる。As shown in Figure 3, conductive wire (2) such as annealed copper wire is used as an insulated wire (1) used in the winding for a water-sealed submersible motor.
A synthetic resin enamel layer (3) is provided on the outer periphery of the main insulating layer (3), and a synthetic resin such as cross-linked polyethylene, ethylene propylene, or polypropylene is extruded to a predetermined thickness on top of the main insulating layer (3).
4) has been widely used. In addition, in order to prevent damage to the main insulating layer (4) when winding the electric wires around the stator core, a material with excellent wear resistance such as nylon 6 or nylon 12 is added around the main insulating layer (4). Electric wires provided with a synthetic resin protective layer (5) are also widely used.
上記絶縁電線を巻線として使用した水封式水中電動機の
一般的な構造は、第４図に示す如きものであり、固定子
鉄心（６）に形成されたスロットに巻回された絶縁型５
（１）は、一部が口出し線（７）としてフレーム（８）
外に引き出されるものもあるが、その大部分は封入水（
９）に直接さらされることになる。また絶ａ電線（１）
は、特に鉄心端（１０）から、コイルエンドループ部（
１１）にかけて、曲げ加工が行われており、これらの部
分では、曲げによる残留応力が加わった状態で運転され
ている。この種の絶縁電線（１）が、長期にわたる水中
での優れた絶縁特性を要求されるのは当然である。この
ためには、藤絶縁層（４）の耐水性と共に、とりわけ水
トリーなどの劣化現象の発生起点になり易い導線（２）
の表面に設けられた合成樹脂エナメル層（３）の特性が
重要になる。この目的の耐水性樹脂エナメル層としては
、従来からホルマール、ポリエステルイミド、あるいは
エポキシ系などの合成樹脂−・層を焼き付は形成するの
が一般的であった。The general structure of a water-seal submersible electric motor using the above-mentioned insulated wire as a winding is as shown in FIG.
(1) has a frame (8) with part of it as a lead line (7)
Some of it is drawn out, but most of it is filled water (
9) will be directly exposed to. Also, Zetsu-a electric wire (1)
In particular, from the core end (10) to the coil end loop part (
11), bending is performed, and these parts are operated with residual stress due to bending. It is natural that this type of insulated wire (1) is required to have excellent insulation properties under water for a long period of time. For this purpose, in addition to the water resistance of the rattan insulating layer (4), the conductor (2), which is likely to cause deterioration phenomena such as water trees, must be
The characteristics of the synthetic resin enamel layer (3) provided on the surface are important. Conventionally, as a water-resistant resin enamel layer for this purpose, a layer of synthetic resin such as formal, polyesterimide, or epoxy resin is generally formed by baking.
一方、近年、電動機の使用条件は益々厳しくなり、例え
ば、封入水（９）については、ポンプの使用条件などに
対しての協調から数百気圧にもなる圧力が要求されたり
、その使用温度も従来になかったような高温度、たとえ
ば水の沸点（１００℃）に近い温度も要求されるように
なってきた。このような苛酷な使用条件の場合、従来の
使用条件ではその機能を十分発揮していたホルマール、
ポリエステルイミドあるいはエポキシ系などの合成樹脂
一層の場合、次第に劣化し長期信頼性に支障をきたすよ
うになった。すなわち、これら合成樹脂エナメル層（３
）は高温高圧力水中で高圧力のため拡散浸透してきた水
分と、高温による湿熱劣化をきたし次第に脆化し微小な
りラックを生じるようになる。この脆化によるクラック
が生じると、この部分に水滴が生成し、電界の力で水ト
リーが生じ次第に主絶縁層（４）を外部に向って進展し
、ついには絶縁破壊などの重大事故を生む危険性がある
ことが判明した。また調査の結果合成樹脂エナメル層（
３）が被覆された後、導線（２）は主絶縁Ｗ（４）を押
し出す工程で、幾つかのガイドローラ上を走行するが、
このような時、合成樹脂エナメル層（３）の表面に微小
な機械的損傷が与えられた部分や。On the other hand, in recent years, the operating conditions for electric motors have become increasingly strict.For example, for sealed water (9), pressures of several hundred atmospheres are required due to coordination with pump operating conditions, and the operating temperature has also increased. High temperatures that have never been seen before, such as temperatures close to the boiling point of water (100°C), are now required. Under such harsh usage conditions, formal, which had fully demonstrated its functionality under conventional usage conditions,
In the case of a single layer of synthetic resin such as polyesterimide or epoxy, it gradually deteriorates, causing problems in long-term reliability. That is, these synthetic resin enamel layers (3
) becomes brittle due to the moisture that has diffused and penetrated due to the high pressure in the high-temperature, high-pressure water, and the moisture and heat deterioration due to the high temperature, causing it to gradually become brittle and form microscopic racks. When a crack occurs due to this embrittlement, water droplets are generated in this area, and water trees are generated due to the force of the electric field and gradually propagate outward through the main insulating layer (4), eventually causing serious accidents such as dielectric breakdown. It turned out to be dangerous. The investigation also revealed that the synthetic resin enamel layer (
3), the conductor (2) runs on several guide rollers in the process of pushing out the main insulation W (4).
At such times, there are areas where the surface of the synthetic resin enamel layer (3) is slightly mechanically damaged.
あるいは主絶縁層（４）を押し出し形成した絶縁電線（
１）を固定子鉄心（６）に巻回した後１曲げ応力が残留
している鉄心端（１０）や、コイルエンドループ部（１
１）に、脆化によるクラックが集中的に発生することが
判明した。Alternatively, an insulated wire (
1) is wound around the stator core (6), the core end (10) where bending stress remains, or the coil end loop part (1)
In 1), it was found that cracks caused by embrittlement occurred intensively.
本発明は上記従来技術の持つ欠点に鑑みなされたもので
、封入水の圧力が数百気圧、温度が１００℃に近い苛酷
な条件下でも、なお長期にわたり所定の絶縁性能を維持
発揮し得る水封式水中電動機用巻線を提供することにあ
る。The present invention was developed in view of the drawbacks of the prior art described above, and is capable of maintaining and exhibiting a predetermined insulating performance over a long period of time even under severe conditions where the pressure of the sealed water is several hundred atmospheres and the temperature is close to 100°C. An object of the present invention is to provide a winding for a sealed submersible electric motor.
上記目的を達成するために、本発明においては、導線の
表面にエポキシ樹脂のような耐湿熱特性に優れた合成樹
脂から成る下引きエナメル層を設け、その外側にポリア
ミド系、ポリアミドイミド系あるいはポリエステルイミ
ド系樹脂のような機械的強度の優れた合成樹脂から成る
上引町エナメル層を設け、その外側に主絶縁層として架
橋ポリエチレン、エチレンプロピレン、ポリプロピレン
などの合成樹脂を押し出し被覆した絶縁電線を用いて水
封式水中電動機用巻線を形成するものである。In order to achieve the above object, in the present invention, an undercoat enamel layer made of a synthetic resin with excellent moisture and heat resistance such as epoxy resin is provided on the surface of the conductive wire, and the outer layer is made of polyamide, polyamideimide, or polyester. A Kamihikicho enamel layer made of synthetic resin with excellent mechanical strength such as imide resin is provided, and an insulated wire coated with extruded synthetic resin such as cross-linked polyethylene, ethylene propylene, or polypropylene is used as the main insulation layer on the outside. This is used to form a winding for a water-sealed submersible motor.
このように形成されたものは主絶縁層を押し出し被覆す
る時、ガイドローラ上に直接、接するのは上引きエナメ
ル層であるが、これは機械的強度特性が優れているから
、幾つかのガイドローラ上を走行した後でも、これに機
械的損傷を生ずることはない、従って下引きエナメル層
が保護されて健全な状態を保ち、その上に主絶縁層を形
成することになる。これによって、高圧力、高温度など
条件がきわめて苛酷な水中において、長期間、課電運転
されても、合成樹脂エナメル層の脆化が発生す・ること
がない。従ってこの脆化に起因する内部導体側から発生
する水トリーなどの劣化現象が全面的に防止され、巻線
の信頼性が向上する。When the main insulating layer is extruded and coated in this way, the top enamel layer is in direct contact with the guide roller, and since this layer has excellent mechanical strength, some guide rollers are Even after running on the rollers, no mechanical damage occurs to it, so that the underlying enamel layer is protected and remains intact, on which the main insulating layer is formed. As a result, the synthetic resin enamel layer will not become brittle even if it is operated under water for a long period of time under extremely severe conditions such as high pressure and temperature. Therefore, deterioration phenomena such as water trees occurring from the internal conductor side due to this embrittlement are completely prevented, and the reliability of the winding is improved.
以下、本発明の一実施例を第１図を用いて説明する。本
実施例の巻線用絶縁電線（１）は、導線（２）の外周に
まず耐湿熱特性に優れるエポキシ系樹脂による下引きエ
ナメル層（３ａ）を施し、この上にポリアミド系樹脂に
よる上引きエナメル層（３ｂ）を設けることで合成樹脂
エナメル層（３）を形成した６しかる後、従来例と同様
な主絶縁層（４）と合成樹脂保護層（５）を設けた。An embodiment of the present invention will be described below with reference to FIG. In the winding insulated wire (1) of this example, an undercoat enamel layer (3a) made of an epoxy resin with excellent moisture and heat resistance is applied to the outer periphery of the conductor (2), and then an overcoat layer (3a) made of a polyamide resin is applied on the outer periphery of the conductor (2). After forming the synthetic resin enamel layer (3) by providing the enamel layer (3b), a main insulating layer (4) and a synthetic resin protective layer (5) similar to those in the conventional example were provided.
以下、作用について説明する。このようにして合成樹脂
エナメル層（３）を形成すると主絶縁層（４）を押出す
時、ガイドローラ上に直接液するのは上引きエナメル層
（３ｂ）であるが、これはポリアミド系樹脂で形成され
ており、きわめて機械的特性に優れている。従って、幾
つかのガイドローラ上を走行した後でも、これに機械的
損傷が残ることはない。と共に、従来、単一エナメル層
として使用されていた時にはガイドローラで機械的損傷
が与えられていたエポキシ系樹脂による下引きエナメル
層（３ａ）もポリアミド系樹脂の上引きエナメル層（３
ｂ）で保護され健全な状態で主絶縁層（４）が押し出し
される。また機械的特性に優れたポリアミド系樹脂によ
る上引きエナメル層（３ｂ）は、絶Ｉ！＃電線（１）を
固定子鉄心に巻回した後、特に鉄心端あるいはコイルエ
ンドループ部で発生する曲げによる残留応力に緩和する
作用を発揮する。以上により、単一エナメル層として使
用されていた時は、高温高圧力の状態で脆化によるクラ
ックを生じていた下引きエナメル層（３ｂ）は長期にわ
たり、その特徴である耐湿熱特性を遺憾なく発揮するよ
うになる。The effect will be explained below. When the synthetic resin enamel layer (3) is formed in this way, when extruding the main insulating layer (4), it is the top enamel layer (3b) that is directly poured onto the guide roller, but this is made of polyamide resin. It has excellent mechanical properties. Therefore, even after running over several guide rollers, no mechanical damage remains on it. At the same time, the undercoat enamel layer (3a) made of epoxy resin, which was conventionally mechanically damaged by guide rollers when used as a single enamel layer, is also replaced by the top enamel layer (3a) made of polyamide resin.
The main insulating layer (4) is extruded in a healthy state protected by b). In addition, the top enamel layer (3b) made of polyamide resin with excellent mechanical properties is absolutely outstanding! # After winding the electric wire (1) around the stator core, it exerts an effect of relieving residual stress caused by bending that occurs particularly at the core end or coil end loop portion. As a result of the above, the undercoating enamel layer (3b), which had cracked due to embrittlement under high temperature and high pressure conditions when used as a single enamel layer, has maintained its characteristic moisture and heat resistance over a long period of time. You will be able to demonstrate your abilities.
このようにして本実施例の絶縁電線（１）には水滴や水
トリーが形成されず高温高圧力下できわめて安定した性
能を示すことになる。In this way, the insulated wire (1) of this example does not form water droplets or water trees and exhibits extremely stable performance under high temperature and high pressure.
実施例の効果を具体的に確認するため次のような試験を
行った。まず第３図に示す従来構成の試料を比較例とし
て用意した。第３図の導線（２）として１０ｍｍ”の軟
鋼単線１合成樹脂エナメル層（３）として以下の骨格分
子構造を持つ０．０５３ｍｍ厚さのエポキシ樹脂エナメ
ル層、
主絶縁層（４）として３．３ｋＶ級所定厚さの架橋ポリ
エチレン、および合成樹脂保護層（５）として０．３１
１Ｉ１１厚さのナイロン１２による保護層を設けた。次
に実施例として、導線（２）、主絶縁層（４）および合
成樹脂保護層（５）を比較例と同一にし、第１図におけ
る合成樹脂エナメル層（３）として、下引きエナメル層
（３ａ）を上記骨格分子構造の０．０３１１１１１１厚
のエポキシ樹脂エナメル層とし、上引きエナメル層（３
ｂ）を下記骨格分子構造を持つ０．０２ｆｆｌＩ１１厚
さのポリアミド樹脂エナメル層、
で形成した試料を用意した。合成樹脂エナメル層（３）
の厚さは、合計０．０５ｍｍであり、先の比較例の単一
層からなる合成樹脂エナメル層（３）よりも若干薄めで
ある。これら両試料を曲げ半径２Ｄ（Ｄ：電線直径）で
ひねりを加えながら曲げ９５℃、１００気圧の水道水中
で３．３ｋＶ−３０００１１ｚの連続課電を行い、所定
の時間ごとに残存波ＢＩｉ電圧を求めた。また顕微鏡に
よる断面観察を実施した。周波数加速係数を５０１１ｚ
の６０倍として、５０Ｈｚの運転時間に換算しこれを横
軸とし、縦軸にその残存破壊電圧を電界で示したのが第
２図である。本実施例の曲線Ａは比較例の曲線Ｂに比べ
、十分に破壊電界値が高く、非常に優れた特性を持って
いる事が分かる。また第１図で１年以降の試料の破壊後
の断面ｌＩ！祭で比較例の場合、エポキシ樹脂が部分的
に脆化し、導体側から多数の水トリーが発生している事
が確認されたが１本実施例ではこれらの水トリーの発生
は皆無であった。In order to specifically confirm the effects of the examples, the following tests were conducted. First, a sample with a conventional configuration shown in FIG. 3 was prepared as a comparative example. In Fig. 3, the conducting wire (2) is a 10 mm'' soft steel solid wire, the synthetic resin enamel layer (3) is a 0.053 mm thick epoxy resin enamel layer having the following skeleton molecular structure, and the main insulating layer (4) is 3. 3 kV class cross-linked polyethylene with a specified thickness and 0.31 as the synthetic resin protective layer (5)
A protective layer of nylon 12 of 1I11 thickness was provided. Next, as an example, the conducting wire (2), the main insulating layer (4), and the synthetic resin protective layer (5) were made the same as in the comparative example, and the synthetic resin enamel layer (3) in FIG. 3a) is an epoxy resin enamel layer with a thickness of 0.03111111 having the above-mentioned skeleton molecular structure, and an overcoating enamel layer (3a) is
A sample was prepared in which b) was formed of a polyamide resin enamel layer having a thickness of 0.02fflI11 and having the following skeleton molecular structure. Synthetic resin enamel layer (3)
The total thickness is 0.05 mm, which is slightly thinner than the single-layer synthetic resin enamel layer (3) of the previous comparative example. Both samples were bent with a bending radius of 2D (D: wire diameter) and continuously charged at 3.3 kV-300011z in tap water at 95°C and 100 atm, and the residual wave BIi voltage was increased at predetermined intervals. I asked for it. We also conducted cross-sectional observation using a microscope. Frequency acceleration coefficient is 5011z
In FIG. 2, the horizontal axis represents the operating time of 50 Hz, and the vertical axis represents the residual breakdown voltage as an electric field. It can be seen that the curve A of this example has a sufficiently higher breakdown electric field value than the curve B of the comparative example, and has very excellent characteristics. Also, in Figure 1, the cross section of the sample after 1 year of destruction lI! In the case of the comparative example at the festival, it was confirmed that the epoxy resin was partially brittle and many water trees were generated from the conductor side, but in this example, none of these water trees occurred. .
以上は、下引きエナメル層をエポキシ樹脂系とし上引き
エナメル層をポリアミド系樹脂としたが特に重要なのは
上引きエナメル層の機械的強度である４本ポリアミド系
樹脂と同様な効果を示すものとしてポリアミドイミド系
樹脂あるいはポリエステルイミド系樹脂がある。すなわ
ち、これらの樹脂により上引きエナメル層を形成すれば
、下引きエナメル層として耐湿熱特性に優れた合成樹脂
エナメル層を使用する限り、上記実施例と同様の効果が
発揮される。In the above, the undercoat enamel layer was made of epoxy resin and the top enamel layer was made of polyamide resin, but what is particularly important is the mechanical strength of the top enamel layer. There are imide resins and polyester imide resins. That is, if the top enamel layer is formed of these resins, the same effects as in the above embodiments can be achieved as long as a synthetic resin enamel layer with excellent moisture and heat resistance is used as the bottom enamel layer.
以上説明したように、本発明においては水封式水中電動
機用巻線として、導線周囲にまず耐湿熱特性に優れた下
引きエナメル層を設け、その」二層としてポリアミド系
、ポリアミドイミド系あるいはポリエステルイミド系の
上引きエナメル層を形成させた。このため高圧力、高温
度など条件がきわめて苛酷な水中において長期課電運転
されても、合成樹脂エナメル層の脆化が発生することが
ない。As explained above, in the present invention, as a winding for a water-sealed submersible electric motor, an undercoat enamel layer with excellent moisture and heat resistance is first provided around the conductor, and the second layer is made of polyamide, polyamide-imide, or polyester. An imide-based top enamel layer was formed. Therefore, the synthetic resin enamel layer will not become brittle even if it is operated under water for a long period of time under extremely severe conditions such as high pressure and temperature.
従って、これに起因した内部導体側から発生する水トリ
ーなどの劣化現象が全面的に防止され、長期にわたり優
れた！縁性能を持つ水封式水中電動機用巻線を提供する
ことが出来る。Therefore, deterioration phenomena such as water trees that occur from the internal conductor side due to this are completely prevented, making it excellent for a long time! It is possible to provide a winding for a water-sealed submersible electric motor that has edge performance.
第１図は本発明の水封式水中電動機用巻線の一実施例の
絶縁電線を示す断面図、第２図は従来および本発明の一
実施例の巻線の絶縁特性を示す曲線図、第３図は従来構
造の巻線の絶縁電線を示す断面図、第４図は水封式水中
電動機の概略を示す縦断面図である。
１ ・・絶縁電線、 ２・・・導線、３・・
・合成樹脂エナメル層、 ３ａ・・・下引きエナメル層
、３ｂ・・・上引きエナメル層、 ４・・・主絶縁層
。
「・・・合成樹脂保護層。FIG. 1 is a sectional view showing an insulated wire of an embodiment of the winding for a water-sealed submersible motor of the present invention, and FIG. 2 is a curve diagram showing the insulation characteristics of the winding of a conventional winding and an embodiment of the present invention. FIG. 3 is a sectional view showing an insulated wire of a conventional winding structure, and FIG. 4 is a vertical sectional view schematically showing a water seal submersible motor. 1...Insulated wire, 2...Conductor wire, 3...
・Synthetic resin enamel layer, 3a... Bottom enamel layer, 3b... Top enamel layer, 4... Main insulating layer. "...Synthetic resin protective layer.
Claims (1)
合成樹脂から成る下引きエナメル層を設け、その外側に
ポリアミド系、ポリアミドイミド系あるいはポリエステ
ルイミド系樹脂のような機械的強度の優れた合成樹脂か
ら成る上引きエナメル層を設け、その外側に主絶縁層と
して架橋ポリエチレン、エチレンプロピレン、ポリプロ
ピレンなどの合成樹脂を押し出し被覆した絶縁電線を用
いたことを特徴とする水封式水中電動機用巻線。An undercoating enamel layer made of a synthetic resin with excellent moisture and heat resistance such as epoxy resin is provided on the surface of the conductor, and a synthetic resin with excellent mechanical strength such as polyamide, polyamideimide, or polyesterimide resin is provided on the outside. A winding wire for a water-sealed submersible motor, characterized in that a top-coated enamel layer made of resin is provided, and an insulated wire coated with extruded synthetic resin such as cross-linked polyethylene, ethylene propylene, or polypropylene is used as the main insulating layer on the outside of the enamel layer. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61027802A JPH0731944B2 (en) | 1986-02-13 | 1986-02-13 | Winding for water-sealed underwater motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61027802A JPH0731944B2 (en) | 1986-02-13 | 1986-02-13 | Winding for water-sealed underwater motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62186415A true JPS62186415A (en) | 1987-08-14 |
| JPH0731944B2 JPH0731944B2 (en) | 1995-04-10 |
Family
ID=12231106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61027802A Expired - Lifetime JPH0731944B2 (en) | 1986-02-13 | 1986-02-13 | Winding for water-sealed underwater motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0731944B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0650242A1 (en) * | 1993-10-26 | 1995-04-26 | HYDOR S.r.l. | Method of manufacturing water-submersible electromechanical devices and device obtained through said method |
| WO2009048102A1 (en) * | 2007-10-12 | 2009-04-16 | Sumitomo Electric Wintec, Inc. | Insulated wire, electrical coil using the insulated wire, and motor |
| JP2010250964A (en) * | 2009-04-10 | 2010-11-04 | Japan Atomic Energy Agency | Electric wire for submersible motor |
| JP2011029147A (en) * | 2009-06-26 | 2011-02-10 | Hitachi Cable Ltd | Electric wire for submersible motor |
| CN110580975A (en) * | 2019-09-30 | 2019-12-17 | 合肥恒大江海泵业股份有限公司 | water-resistant winding wire and manufacturing method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5306742B2 (en) | 2008-08-28 | 2013-10-02 | 古河電気工業株式会社 | Insulated wire |
| JP5391324B1 (en) | 2012-11-30 | 2014-01-15 | 古河電気工業株式会社 | Inverter surge insulation wire and method for manufacturing the same |
| JP5391341B1 (en) | 2013-02-05 | 2014-01-15 | 古河電気工業株式会社 | Inverter surge resistant wire |
| JP6030132B2 (en) | 2013-02-07 | 2016-11-24 | 古河電気工業株式会社 | Enamel resin insulation laminate and insulated wire and electrical / electronic equipment using the same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4822775U (en) * | 1971-07-26 | 1973-03-15 | ||
| JPS4831480A (en) * | 1971-08-27 | 1973-04-25 | ||
| JPS5696517U (en) * | 1979-12-24 | 1981-07-31 | ||
| JPS56141108A (en) * | 1980-03-31 | 1981-11-04 | Ria Magunetsuto Waiaa Co Inc | Magnet wire |
| JPS5944711A (en) * | 1982-09-06 | 1984-03-13 | 株式会社荏原製作所 | Underwater coated wire and underwater motor |
| JPS59163709A (en) * | 1983-03-07 | 1984-09-14 | 住友電気工業株式会社 | Magnet wire |
-
1986
- 1986-02-13 JP JP61027802A patent/JPH0731944B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4822775U (en) * | 1971-07-26 | 1973-03-15 | ||
| JPS4831480A (en) * | 1971-08-27 | 1973-04-25 | ||
| JPS5696517U (en) * | 1979-12-24 | 1981-07-31 | ||
| JPS56141108A (en) * | 1980-03-31 | 1981-11-04 | Ria Magunetsuto Waiaa Co Inc | Magnet wire |
| JPS5944711A (en) * | 1982-09-06 | 1984-03-13 | 株式会社荏原製作所 | Underwater coated wire and underwater motor |
| JPS59163709A (en) * | 1983-03-07 | 1984-09-14 | 住友電気工業株式会社 | Magnet wire |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0650242A1 (en) * | 1993-10-26 | 1995-04-26 | HYDOR S.r.l. | Method of manufacturing water-submersible electromechanical devices and device obtained through said method |
| WO2009048102A1 (en) * | 2007-10-12 | 2009-04-16 | Sumitomo Electric Wintec, Inc. | Insulated wire, electrical coil using the insulated wire, and motor |
| JP2010250964A (en) * | 2009-04-10 | 2010-11-04 | Japan Atomic Energy Agency | Electric wire for submersible motor |
| JP2011029147A (en) * | 2009-06-26 | 2011-02-10 | Hitachi Cable Ltd | Electric wire for submersible motor |
| CN110580975A (en) * | 2019-09-30 | 2019-12-17 | 合肥恒大江海泵业股份有限公司 | water-resistant winding wire and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0731944B2 (en) | 1995-04-10 |
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