JPH02136046A - Insulation structure and insulation processing method for electrical rotating machine coil - Google Patents
Insulation structure and insulation processing method for electrical rotating machine coilInfo
- Publication number
- JPH02136046A JPH02136046A JP63286661A JP28666188A JPH02136046A JP H02136046 A JPH02136046 A JP H02136046A JP 63286661 A JP63286661 A JP 63286661A JP 28666188 A JP28666188 A JP 28666188A JP H02136046 A JPH02136046 A JP H02136046A
- Authority
- JP
- Japan
- Prior art keywords
- insulation
- resin
- polyimide
- coil
- acid anhydride
- 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
- 238000009413 insulation Methods 0.000 title claims abstract description 55
- 238000003672 processing method Methods 0.000 title description 2
- 229920001721 polyimide Polymers 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 27
- 239000009719 polyimide resin Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 239000003822 epoxy resin Substances 0.000 claims abstract description 11
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 11
- 150000008065 acid anhydrides Chemical class 0.000 claims abstract description 9
- 150000001875 compounds Chemical class 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 9
- 239000004642 Polyimide Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 3
- 238000005470 impregnation Methods 0.000 abstract description 8
- 239000004020 conductor Substances 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 230000006866 deterioration Effects 0.000 description 9
- 230000015556 catabolic process Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 3
- 239000004593 Epoxy Substances 0.000 description 2
- 229920001646 UPILEX Polymers 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002075 main ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009849 vacuum degassing Methods 0.000 description 1
Classifications
-
- 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
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/38—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes condensation products of aldehydes with amines or amides
-
- 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
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/40—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes epoxy resins
-
- 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
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/303—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups H01B3/38 or H01B3/302
- H01B3/306—Polyimides or polyesterimides
Abstract
Description
【発明の詳細な説明】
人、 産業上の利用分母
本発明は耐熱性の優れた回転電機コイルの絶縁構造及び
絶縁処理方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insulating structure and an insulating treatment method for rotating electric machine coils having excellent heat resistance.
Ｂ、 発明の概要
本発明は、特定の化学構造からなるポリイミドを主体と
したフィルムテープ又はシートで素線絶縁及び対地絶縁
の少なくとも一部を形成し、しかも、ポリイミド樹脂と
エポキシｍ１ｌｌとの混合樹脂からなる主剤と酸無水物
系硬化剤からなる樹脂コンパウンドを含浸・硬化して回
転電機コイルの絶縁とすることにより、絶縁の耐熱性を
向上させたものである。B. Summary of the Invention The present invention forms at least a part of the wire insulation and ground insulation with a film tape or sheet mainly made of polyimide having a specific chemical structure, and furthermore, a mixed resin of polyimide resin and epoxy ml is used. The heat resistance of the insulation is improved by impregnating and curing a resin compound consisting of a main ingredient consisting of the following and an acid anhydride curing agent to insulate the coils of rotating electric machines.
Ｃ９従来の技術
省エネルギー、省資源の観点から回転電気機器の小形化
、軽量化が求められており、特に車両用電動機において
は、連動性能アップの面からも、小形・軽量化が至上命
題となっている。そして、かかる回転電気機器の小形・
軽量化の手段の一つとして、コイル絶縁の耐熱グレード
をアップする方法がある。C9 Conventional technology There is a demand for smaller and lighter rotating electrical equipment from the perspective of energy and resource conservation.In particular, for vehicle electric motors, smaller size and lighter weight are paramount from the perspective of improving interlocking performance. ing. And, the small size and size of such rotating electrical equipment
One way to reduce weight is to improve the heat resistance of the coil insulation.
絶縁材料には、無機質系材料と有機質系材料とがあり、
耐熱性の面からは前者の方が優れているが、作業性や機
能性の面から有機質系材料が使用されるのが一般的であ
る。そして、高耐熱性グレードの機器には、最も耐熱性
に優れ、しかも作業性のよい材料の一つであるポリイミ
ド系樹脂が使用されている。Insulating materials include inorganic materials and organic materials.
Although the former is superior in terms of heat resistance, organic materials are generally used in terms of workability and functionality. For high heat resistance grade equipment, polyimide resin is used, which is one of the most heat resistant and workable materials.
−Ｓに、回転電気コイルの絶縁では、コイル導体の素線
絶縁や対地絶縁用としてフィルムテープ又はシートを巻
回し、これらフィルムテープ又はシートの隙間に含浸樹
脂を充填して、熱放射性や機械的強度及び耐環境性を向
上させ又部分放電の発生を防止する構造をとっているが
、耐熱グレードではフィルム及び含浸樹脂としてポリイ
ミド系フィルム材料及び含浸用ポリイミド系４！１脂を
使用している。-S, in the insulation of rotating electric coils, film tapes or sheets are wound around the coil conductor for wire insulation and ground insulation, and gaps between these film tapes or sheets are filled with impregnated resin to prevent heat radiation and mechanical damage. It has a structure that improves strength and environmental resistance and prevents the occurrence of partial discharge, but in the heat-resistant grade, polyimide film material and polyimide 4!1 resin for impregnation are used as the film and impregnating resin.
Ｄ、 発明が解決しようとする課題
しかしながら、ポリイミド系樹脂にはいろいろな種類が
あり、例えば含浸用樹脂ではポットライフや粘度を調整
して作業性をよくしなければならないなど、フィルムテ
ープ等あるいは含浸用樹脂それぞれに種々の機能が要求
され、又、相互間の相容性等を考慮しなければならない
ので、満足できろ耐熱特性はなかなか得られないのが現
状である。D. Problems to be Solved by the Invention However, there are various types of polyimide resins. For example, for impregnation resins, the pot life and viscosity must be adjusted to improve workability. Currently, it is difficult to obtain satisfactory heat resistance properties because various functions are required for each resin used and mutual compatibility must be taken into consideration.
本発明はこのような事情に鑑み、耐熱性に優れ且つ作業
性等も良好である電気機器絶縁及び絶縁処理方法を提供
することを目的とする。In view of these circumstances, the present invention aims to provide an electrical equipment insulation and insulation treatment method that has excellent heat resistance and good workability.
Ｅ、 課題を解決するための手段
前記目的を達成する本発明の回転電機コイルの絶縁構造
は、素線ｍｍ及び対地絶縁の少なくとも一部が、一般式
、
で表されるポリイミドを主体として形成されたフィルム
テープ又はシートからなり、含浸樹脂絶縁が、ポリイミ
ド樹脂とエポキシ樹脂とを混合した主剤と酸無水物系硬
化剤とからなる樹脂コンパウンドを硬化させたものであ
ることを特徴とし、又、絶縁処理方法は、上記一般式（
１）で表されるポリイミドを主体とするフィルムテープ
又はシートで素線絶縁及び対地絶縁の少なくとも一部を
形成し、対地絶縁を施した回転電機コイルに、ポリイミ
ド樹脂とエポキシ樹脂とを混合した主剤と酸無水物系硬
化剤とからなる樹脂コンパウンドを含浸し、硬化するこ
とを特徴とする。E. Means for Solving the Problems The insulating structure of the rotating electric machine coil of the present invention that achieves the above object is such that at least a part of the strands mm and the ground insulation are formed mainly from polyimide represented by the general formula. The impregnated resin insulation is made by curing a resin compound consisting of a base resin mixed with polyimide resin and epoxy resin and an acid anhydride curing agent. The processing method is based on the above general formula (
1) A base material made of a mixture of polyimide resin and epoxy resin in a rotating electrical machine coil that forms at least part of the wire insulation and ground insulation using a film tape or sheet mainly composed of polyimide represented by 1), and provides ground insulation. It is characterized by being impregnated with a resin compound consisting of and an acid anhydride curing agent and curing.
Ｆ、 作 用
前記一般式（１）で表されろ化学構造を有するポリイミ
ドを主体とするフィルムテープ又はシートと、ポリイミ
ド樹脂とエポキシ樹脂とを含有する含浸樹脂とを組合せ
た場合、含浸作業の作業性及び相容性が良好であり、且
つ高温時において発生するガスによるフィルムの劣化が
防止され、耐熱性が大幅に向上される。F. Function When a film tape or sheet mainly made of polyimide having the chemical structure represented by the above general formula (1) is combined with an impregnating resin containing a polyimide resin and an epoxy resin, the impregnation work It has good properties and compatibility, and also prevents deterioration of the film due to gases generated at high temperatures, greatly improving heat resistance.
Ｇ、実施例 息下、本発明を好適な実施例に基づいて説明する。G. Example The present invention will now be described based on preferred embodiments.
第１図（ａ３ 、 （ｂ）に示すように、平角［ｔｌ（
１，８Ｘ ５．Ｏｍ）にエナメル及びポリイミド樹脂か
らなる素線絶Ｒ２を施した素線３を３並び２段に束ねた
、直線部長ｌが２００鴫の亀甲形の素線コイル導体に、
前記一般式（１）で表される化学構造を有するポリイミ
ドフィルム（ユーピレックスＲ；宇部興産社製）をハー
フラップで３回巻回し、その上からさらに外装絶縁とし
て厚さ０．１３ｏｏａのガラステープをハーフラップで
１回巻回して対地絶縁４とした。このコイルの両サイド
の直線部に長さ１８０ＷＩの鉄板製のモデルスロット４
をコイル表面に密着するように装置した。そして真空容
器中で１００℃、４時間の真空脱気処理を施した後、ポ
リイミド樹脂及びエポキシ樹脂を混合した主剤に酸無水
物系硬化剤を配合した樹脂コンパウンドを用いて、真空
加圧含浸処理を施した。硬化処理としては、乾燥炉中テ
、１５０℃で１６時間のプレキュア−を行い、さらに、
２００℃で１２時間のアフターキュアーを行った。As shown in Figure 1 (a3, (b)), the rectangular [tl(
1.8X 5. A tortoise-shell-shaped strand coil conductor with a straight length l of 200 mm is made by bundling 3 rows of 2 tiers of strands 3 with strands R2 made of enamel and polyimide resin on Om),
A polyimide film (Upilex R; manufactured by Ube Industries, Ltd.) having a chemical structure represented by the general formula (1) is wound three times in a half-wrap manner, and a glass tape with a thickness of 0.13 ooa is further applied over the film as exterior insulation. It was wound once in a half wrap to provide ground insulation of 4. Model slots 4 made of iron plate with a length of 180 WI are placed on the straight parts on both sides of this coil.
was placed in close contact with the coil surface. After vacuum degassing treatment at 100°C for 4 hours in a vacuum container, vacuum pressure impregnation treatment is performed using a resin compound that is a mixture of polyimide resin and epoxy resin and an acid anhydride curing agent. was applied. As for the curing treatment, precure was performed in a drying oven at 150°C for 16 hours, and further,
After-cure was performed at 200°C for 12 hours.
比較のため、ポリイミドフィルムとして、上記ユービレ
ックスＲとほぼ同等のｔｉｌｌを有する、下記一般式（
２）の化学構造のカプトン（デュポン社製）を用いた以
外は同様にして絶縁処理を行った。For comparison, as a polyimide film, the following general formula (
Insulation treatment was performed in the same manner except that Kapton (manufactured by DuPont) having the chemical structure 2) was used.
上述した実施例及び比較例の−δ。−温度特性を第２図
に示す。なお、同図には樹脂含浸前の対地絶縁のみを施
した状態での―δ。−温度特性も併せて示す。−δ of the above-mentioned Examples and Comparative Examples. -The temperature characteristics are shown in Figure 2. The figure shows -δ with only ground insulation applied before resin impregnation. -Temperature characteristics are also shown.
第２図に示すように、含浸前においては両者共に値が小
さく、大きな差が認められなかったが、含浸後において
は比較例のみ高温領域での−δｏ（＋１が著しく高くな
っている。As shown in FIG. 2, before impregnation, both values were small and no major difference was observed, but after impregnation, -δo(+1) in the high temperature region was significantly higher only in the comparative example.
一方、含浸樹脂を２ ｍｍの厚さのプレートにした場合
の−δ。−温度特性を調べてみると、第３図に示すよう
に２００℃で約５％と悪い値ではなかった。On the other hand, -δ when the impregnated resin is made into a plate with a thickness of 2 mm. - When the temperature characteristics were investigated, as shown in Fig. 3, it was about 5% at 200°C, which was not a bad value.
これらの結果より、本発明において用いている前記一般
式（１）で表されるポリイミドフィルムは、ポリイミド
及びエポキシ樹脂からなる含浸樹脂に対して著しく相容
性がよいことが認められろ。From these results, it can be seen that the polyimide film represented by the general formula (1) used in the present invention has extremely good compatibility with the impregnating resin made of polyimide and epoxy resin.
第４図は、上述した実施例及び比較例のモデルコイルを
２７０℃の恒温槽中で熱劣化させたときの、初期状態の
絶縁破壊強度に対する劣化後の絶縁破壊強度の低下率を
示したものである。なお、この絶縁破壊強度はモデルス
ロット部Ｓとコイルエンド部ｅ（第１図参照）とに分け
て測定した。同図に示すように、比較例のモデルコイル
では短時間で絶縁破壊強度が低下し、劣化が激しいこと
が認められろ。また、特にスロット部における低下率が
著しく高いことが判る。これに対し、実施例のモデルコ
イルでは、劣化が緩やかであり、また、スロット部Ｓと
エンド部ｅとの差も認められなかった。Figure 4 shows the rate of decrease in dielectric breakdown strength after deterioration relative to the dielectric breakdown strength in the initial state when the model coils of the above-mentioned examples and comparative examples were thermally degraded in a constant temperature bath at 270°C. It is. Note that this dielectric breakdown strength was measured separately for the model slot portion S and the coil end portion e (see FIG. 1). As shown in the figure, it can be seen that in the model coil of the comparative example, the dielectric breakdown strength decreased in a short period of time, and the deterioration was severe. It can also be seen that the rate of decline is particularly high in the slot portion. In contrast, in the model coil of the example, the deterioration was gradual, and no difference was observed between the slot portion S and the end portion e.
乙の結果より、例えば電動機の固定子コイルのように鉄
心スロット部に密着して装着され、しかも一体含浸処理
されて密閉度が高い場合、すなわち、比較例のスロット
部のように絶縁破壊強度の劣化が著しい場合に、本発明
絶縁を採用すれば極めて有効であることが判る。From the results of Part B, it is clear that when the stator coil of an electric motor is installed in close contact with the slot part of the iron core and is integrally impregnated and has a high degree of sealing, in other words, the dielectric breakdown strength of the slot part of the comparative example is high. It can be seen that in cases where the deterioration is significant, the insulation of the present invention is extremely effective.
次に、上記一般式（１）のポリイミド（ユーピレックス
Ｒ；宇部興産社製）からなるフィルムテープを素線絶縁
に用いた場合（試験例１）。Next, a case where a film tape made of polyimide of the above general formula (1) (Upilex R; manufactured by Ube Industries, Ltd.) was used for wire insulation (Test Example 1).
対地絶縁に用いた場合（試験例２）、素線絶縁及び対地
絶縁に用いた場合（試験例３）について絶縁の熱劣化を
比較した。なお、一般式（１）のポリイミド以外のとこ
ろにはカプトン（デュポン社ｆＭ、）を用い、また比較
のため、カプトンを素線絶縁及び対地絶縁に使用した場
合（対照例１）も併せて比較した。Thermal deterioration of insulation was compared when used for ground insulation (Test Example 2) and when used for strand insulation and ground insulation (Test Example 3). In addition, Kapton (DuPont fM) was used for parts other than polyimide in general formula (1), and for comparison, a comparison was also made when Kapton was used for wire insulation and ground insulation (Comparative Example 1). did.
絶縁処理は、以下のように行った。The insulation treatment was performed as follows.
裸平角銅線（サイズ１．８ ｍｍ Ｘ ５．０ ＋ｎｍ
）に厚さ０．０５ｍｍ、幅１２１ｍ＋のフィルムテープ
をハーフラップ巻で１回巻回して素線絶縁を形成し、こ
の素線を２並び４段に束ねて直線部長２００ ｍｍの亀
甲形の素線コイル導体に成形し、これに厚さ０．０５
ｍｍ、 ｖＡｌ ９胴のフィルムテープをハーフラップ
で３回巻回し、さらにその上に外装絶縁として厚さ０．
１３ｍ＋ｎのガラス織布テープを八−フラップで１回巻
回して対地絶縁とした。そして、コイルの両サイドの直
線部に長さ１８０ｍｍ、厚さ５間の鉄板製のモデルスロ
ットをコイル表面に密着するように装着し、以下、上述
した実施例と同様にポリイミド樹脂とエポキシ樹脂との
混合物を含浸し、同様に硬化処理を施した。Bare rectangular copper wire (size 1.8 mm x 5.0 +nm
), a film tape with a thickness of 0.05 mm and a width of 121 m+ is wound once in a half-wrap manner to form strand insulation, and the strands are bundled in 2 rows in 4 tiers to form a tortoiseshell-shaped element with a straight length of 200 mm. Formed into a wire coil conductor with a thickness of 0.05
mm, vAl A 9-cylinder film tape is wound three times in a half-wrap, and then a 0.5mm thick film tape is wrapped as an exterior insulation layer on top of the half-wrap film tape.
A 13m+n glass woven tape was wound once with eight flaps to provide ground insulation. Then, model slots made of iron plate with a length of 180 mm and a thickness of 5 mm were attached to the straight parts on both sides of the coil so as to be in close contact with the coil surface, and then polyimide resin and epoxy resin were added in the same manner as in the above embodiment. The mixture was impregnated with a mixture of the above and hardened in the same manner.
これら試験例１〜３及び対照例について、恒温槽中で２
８５℃、１２日間の強制加熱劣化させた後の素腺聞及び
対地間の絶縁波＊＃４力を測定した。なお、乙の値（よ
、劣化前の平均値に対する残留絶縁波ｆｓ耐力（％）で
表し、第１表に示す。Regarding these Test Examples 1 to 3 and the control example,
The insulating wave*#4 force between the bare glands and the ground was measured after forced heating and deterioration at 85° C. for 12 days. In addition, the value of O (y) is expressed as residual insulation wave fs proof strength (%) with respect to the average value before deterioration, and is shown in Table 1.
第１表
第１表に示すように、上記一般式（１）に示すポリイミ
ドからなるフィルムを用いた素線絶縁及び対地絶縁は、
平均値で６０％以上の耐力を示している。このように一
般式（１）のポリイミドを素線絶縁及び対地絶縁のどち
らかに用い、又は両方に用い、ポリイミド及びエポキシ
の混合樹脂を含浸硬化させれば上述した実施例と同様に
耐熱性が大幅に向上することが判った。Table 1 As shown in Table 1, wire insulation and ground insulation using a film made of polyimide shown in the above general formula (1) are as follows:
It shows an average yield strength of 60% or more. In this way, if the polyimide of general formula (1) is used for either wire insulation or ground insulation, or both, and is impregnated and cured with a mixed resin of polyimide and epoxy, heat resistance can be obtained as in the above example. It was found that there was a significant improvement.
Ｈｏ 発明の詳細
な説明したように、本発明では特定の化学構造を有する
ポリイミドからなるフィルムテープ又はシートを素線絶
縁及び対地絶縁の少なくとも一部に用い、且つポリイミ
ド樹脂及びエポキシ樹脂と酸無水物系硬化剤とからなる
樹脂コンパウンドを含浸硬化させてコイル絶縁とするこ
とにより、作業性が良好であり、またフィルムと含浸樹
脂の相容性の向上により、著しく耐熱性が向上するとい
う効果を得ることができる。したがって、例えば車両用
電動機などに適用した場合に車両の運動性能の向上につ
ながり、製造コストを低下させることができる。Ho As described in detail of the invention, in the present invention, a film tape or sheet made of polyimide having a specific chemical structure is used for at least a part of the wire insulation and the ground insulation, and a polyimide resin, an epoxy resin, and an acid anhydride are used. By impregnating and curing a resin compound consisting of a hardening agent to form coil insulation, workability is good, and heat resistance is significantly improved due to improved compatibility between the film and the impregnated resin. be able to. Therefore, when applied to, for example, a vehicle electric motor, the driving performance of the vehicle can be improved and manufacturing costs can be reduced.
第１ 図（ａｌ 、 （ｂｌは実施例のモデルコイルの
平面図及び断面図、第２図は実施例のコイルの−δＡ度
特度合性すグラフ、第３図は樹脂プレートの−δ。−温
度特性を示すグラフ、第４図は実施例のモデルコイルの
熱劣化時間−絶縁破壊強度特性を示すグラフである。
図面中、
１は平角銅線、
２は素線絶縁、
３は素線、
４は対地絶縁、
５はモデルスロットである。
（ｂ）
第
図
ｔａｎδ０
温度特性
温 度 、。Ｃ）
手続補正書
平成元年９月８Figure 1 (al, (bl) is a plan view and cross-sectional view of the model coil of the example, Figure 2 is a graph of -δA characteristic of the coil of the example, and Figure 3 is -δ of the resin plate. Figure 4 is a graph showing the temperature characteristics and the thermal deterioration time vs. dielectric breakdown strength characteristics of the model coil of the example. 4 is ground insulation, 5 is a model slot. (b) Figure tan δ0 temperature characteristic temperature, C) Procedural amendment September 8, 1989
Claims (1)
、 ▲数式、化学式、表等があります▼ で表されるポリイミドを主体として形成されたフィルム
テープ又はシートからなり、含浸樹脂絶縁が、ポリイミ
ド樹脂とエポキシ樹脂とを混合した主剤と酸無水物系硬
化剤とからなる樹脂コンパウンドを硬化させたものであ
ることを特徴とする回転電機コイルの絶縁構造。 ２）一般式、 ▲数式、化学式、表等があります▼ で表されるポリイミドを主体とするフィルムテープ又は
シートで素線絶縁及び対地絶縁の少なくとも一部を形成
し、対地絶縁を施した回転電機コイルに、ポリイミド樹
脂とエポキシ樹脂とを混合した主剤と酸無水物系硬化剤
とからなる樹脂コンパウンドを含浸し、硬化することを
特徴とする回転電機コイルの絶縁処理方法。[Claims] 1) At least a part of the wire insulation and the ground insulation are made of a film tape or sheet mainly made of polyimide represented by the general formula, ▲numerical formula, chemical formula, table, etc.▼ An insulating structure for a rotating electric machine coil, characterized in that the impregnated resin insulation is made by curing a resin compound consisting of a main resin mixed with a polyimide resin and an epoxy resin and an acid anhydride curing agent. 2) A rotating electric machine with ground insulation formed by forming at least a part of the wire insulation and ground insulation with a film tape or sheet mainly made of polyimide represented by the general formula, ▲Mathematical formula, chemical formula, table, etc.▼ A method for insulating a coil of a rotating electric machine, which comprises impregnating a coil with a resin compound consisting of a base resin mixed with a polyimide resin and an epoxy resin and an acid anhydride curing agent and curing the coil.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63286661A JP2699475B2 (en) | 1988-11-15 | 1988-11-15 | Insulation structure of rotating electric machine coil |
| KR1019890016645A KR900008539A (en) | 1988-11-15 | 1989-11-15 | Insulator for Rotating Armature Coil |
| EP19890121156 EP0369435A3 (en) | 1988-11-15 | 1989-11-15 | Insulation for revolving-armature coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63286661A JP2699475B2 (en) | 1988-11-15 | 1988-11-15 | Insulation structure of rotating electric machine coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02136046A true JPH02136046A (en) | 1990-05-24 |
| JP2699475B2 JP2699475B2 (en) | 1998-01-19 |
Family
ID=17707316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63286661A Expired - Fee Related JP2699475B2 (en) | 1988-11-15 | 1988-11-15 | Insulation structure of rotating electric machine coil |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0369435A3 (en) |
| JP (1) | JP2699475B2 (en) |
| KR (1) | KR900008539A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013039653A (en) * | 2011-08-19 | 2013-02-28 | Hitachi Koki Co Ltd | Electric power tool and method for manufacturing the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101859615B (en) * | 2010-05-26 | 2012-04-25 | 江苏五洲电磁线有限公司 | Film lapping and sintering method of transformer coil film wire |
| US20140154113A1 (en) * | 2012-12-05 | 2014-06-05 | Ge Oil & Gas Esp, Inc. | High temperature downhole motors with advanced polyimide insulation materials |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5291196A (en) * | 1976-01-28 | 1977-08-01 | Hitachi Ltd | Magnetic material having superior heat resistance |
| JPS5528822A (en) * | 1978-08-23 | 1980-02-29 | Ube Ind Ltd | Method for manufacturing polyimide film |
| JPS63105444U (en) * | 1986-12-24 | 1988-07-08 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5574110A (en) * | 1978-11-29 | 1980-06-04 | Matsushita Electric Ind Co Ltd | Insulating method for electromagnetic coil |
| US4510272A (en) * | 1983-03-16 | 1985-04-09 | Avco Corporation | Bis-maleimide-epoxy compositions and prepregs |
| JPS6026426A (en) * | 1983-07-22 | 1985-02-09 | Mitsubishi Electric Corp | Insulated coil |
| JPS63245429A (en) * | 1987-03-31 | 1988-10-12 | Mitsubishi Petrochem Co Ltd | Thermosetting resin composition |
-
1988
- 1988-11-15 JP JP63286661A patent/JP2699475B2/en not_active Expired - Fee Related
-
1989
- 1989-11-15 KR KR1019890016645A patent/KR900008539A/en not_active Application Discontinuation
- 1989-11-15 EP EP19890121156 patent/EP0369435A3/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5291196A (en) * | 1976-01-28 | 1977-08-01 | Hitachi Ltd | Magnetic material having superior heat resistance |
| JPS5528822A (en) * | 1978-08-23 | 1980-02-29 | Ube Ind Ltd | Method for manufacturing polyimide film |
| JPS63105444U (en) * | 1986-12-24 | 1988-07-08 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013039653A (en) * | 2011-08-19 | 2013-02-28 | Hitachi Koki Co Ltd | Electric power tool and method for manufacturing the same |
| US9539649B2 (en) | 2011-08-19 | 2017-01-10 | Hitachi Koki Co., Ltd. | Power tool and method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0369435A3 (en) | 1990-12-19 |
| KR900008539A (en) | 1990-06-04 |
| JP2699475B2 (en) | 1998-01-19 |
| EP0369435A2 (en) | 1990-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1289610C (en) | Coil for arrangement in slots in a stator or rotor of an electrical machine | |
| JP2738572B2 (en) | High voltage insulation of electrical machines | |
| US3990029A (en) | Insulated windings provided with a mould releasing material | |
| CA2105795C (en) | Method of manufacturing a strip wound coil to eliminate lead bulge | |
| JPS60210829A (en) | Manufacture of transformer | |
| CA1201337A (en) | Solid insulator and electric equipment coil using the same | |
| JPH02136046A (en) | Insulation structure and insulation processing method for electrical rotating machine coil | |
| AU3565000A (en) | Improvements in electrical machines | |
| US6680119B2 (en) | Insulated electrical coil having enhanced oxidation resistant polymeric insulation composition | |
| US6555023B2 (en) | Enhanced oxidation resistant polymeric insulation composition for air-cooled generators | |
| JP2005110450A (en) | Low-resistance corona-prevention tape or sheet, and stator coil for rotary electric machine | |
| JPS6118411B2 (en) | ||
| JPH10210694A (en) | Insulating coil for dynamo-electric machine | |
| JPH11113204A (en) | Stator coil of dynamo-electric machine | |
| EP3866307B1 (en) | Stator coil, method for manufacturing same, and rotary electrical machine | |
| JPS59117435A (en) | High voltage coil for rotary electric machine | |
| JP2616103B2 (en) | Manufacturing method of heat resistant coil | |
| JPH0635641Y2 (en) | High voltage rotating machine winding insulation structure | |
| JPH0723008Y2 (en) | High voltage rotating machine winding | |
| JPS6356152A (en) | Manufacture of heat-resisting electrical rotating machine winding | |
| JPS6145326B2 (en) | ||
| JPS61166010A (en) | Electrically insulated coil | |
| JPH02197232A (en) | End corona protection layer of stator coil for high tension rotating electric machine | |
| JPS6212356A (en) | Manufacture of stator coil | |
| US3582425A (en) | Method of manufacturing electric coils |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |