JP3164949B2 - Self-fusing insulated wire and rotating electric machine using the same - Google Patents
Self-fusing insulated wire and rotating electric machine using the sameInfo
- Publication number
- JP3164949B2 JP3164949B2 JP26728593A JP26728593A JP3164949B2 JP 3164949 B2 JP3164949 B2 JP 3164949B2 JP 26728593 A JP26728593 A JP 26728593A JP 26728593 A JP26728593 A JP 26728593A JP 3164949 B2 JP3164949 B2 JP 3164949B2
- Authority
- JP
- Japan
- Prior art keywords
- self
- insulated wire
- electric machine
- rotating electric
- fusing insulated
- 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.)
- Expired - Fee Related
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Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐熱性を向上させた自
己融着性絶縁電線およびそれを用いた回転電機に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-fusing insulated wire having improved heat resistance and a rotating electric machine using the same.
【０００２】[0002]
【従来の技術】従来より各種電気通信機器のコイル成形
品などに使用されている自己融着性絶縁電線は、コイル
巻加工後にワニス含浸処理を行うことなく線間を一体に
固着できることから、近年のコイル成形工程の合理化、
省力化要求にともない、ますますその需要が増大しつつ
ある。2. Description of the Related Art Self-fusing insulated wires conventionally used for coil molded products of various telecommunications equipment can be fixed together without conducting varnish impregnation after coil winding. Streamlining of coil forming process,
The demand for labor saving is increasing.
【０００３】この自己融着性絶縁電線は、電線の最外層
に熱可塑性樹脂を主体とする自己融着層を設けたもの
で、熱可塑性樹脂としては、従来、ポリビニルブチラー
ル樹脂、共重合ポリアミド樹脂、フェノキシ樹脂、ポリ
ビニルホルマール樹脂、ポリエステル樹脂、エポキシ樹
脂などが用いられてきた。[0003] This self-fusing insulated wire is provided with a self-fusing layer mainly composed of a thermoplastic resin on the outermost layer of the wire. As the thermoplastic resin, conventionally, a polyvinyl butyral resin, a copolymer polyamide resin or the like is used. , Phenoxy resin, polyvinyl formal resin, polyester resin, epoxy resin and the like have been used.
【０００４】しかして、近年、このような自己融着性絶
縁電線を、モータやトランスなどの高温で使用される機
器用コイルの用途に使用しようとする要求がある。しか
しながら、自己融着性絶縁電線は、上記したように、加
熱するだけで融着層が軟化して一体化するものであるた
め、本質的に耐熱性に乏しいという難点があった。すな
わち、従来の自己融着性絶縁電線の多くは、その融着層
の軟化温度が 100〜150 ℃程度と低く、このため、機器
内温度が上昇すると融着層が軟化して接着力が低下して
しまい、耐熱性が要求される用途への適用は困難であっ
た。一方、かかる高温雰囲気下での接着力の低下を防止
したものとして、融着層に芳香族ポリエステル樹脂を用
いたものが開発されている。しかしながら、このもの
は、コイル成形後に十分な接着力を得るためには 250℃
以上の高温で加熱することが必要で、作業性が悪いう
え、主絶縁層の劣化を招くおそれがあった。In recent years, however, there has been a demand for using such a self-fusing insulated wire for use in coils for equipment used at high temperatures such as motors and transformers. However, as described above, the self-fusing insulated wire has a disadvantage that it is essentially poor in heat resistance because the fusion layer is softened and integrated only by heating. In other words, many of the conventional self-fusing insulated wires have a softening temperature of the fusion layer as low as about 100 to 150 ° C. Therefore, when the temperature inside the device rises, the fusion layer softens and the adhesive strength decreases. As a result, it has been difficult to apply it to applications requiring heat resistance. On the other hand, a device using an aromatic polyester resin for a fusion layer has been developed as a device for preventing a decrease in adhesive force under such a high temperature atmosphere. However, this requires 250 ° C for sufficient adhesion after coil forming.
Heating at the above-mentioned high temperature is necessary, and the workability is poor, and the main insulating layer may be deteriorated.
【０００５】[0005]
【発明が解決しようとする課題】このように、近年、高
温雰囲気下で使用可能な自己融着性絶縁電線の要求があ
るが、従来のものの多くは、高温雰囲気下で接着力が低
下するため、その使用は困難で、また、そのような高温
雰囲気下での接着力の低下を防止したものは、十分な初
期接着力を得るために、高温で加熱する必要があり、作
業性の低下や主絶縁層の劣化を招く難点があった。As described above, in recent years, there has been a demand for a self-fusing insulated wire that can be used in a high-temperature atmosphere. However, most of conventional wires have a reduced adhesive strength in a high-temperature atmosphere. However, it is difficult to use it, and those which prevent a decrease in the adhesive force under such a high temperature atmosphere need to be heated at a high temperature in order to obtain a sufficient initial adhesive force. There was a problem that the main insulating layer was deteriorated.
【０００６】本発明はこのような従来の事情に対処して
なされたもので、低い温度の加熱で強固に接着でき、し
かも、その接着力が高温時にも保持される自己融着性絶
縁電線およびそれを用いた回転電機を提供することを目
的とする。The present invention has been made in view of such a conventional situation, and has a self-fusing insulated wire capable of firmly bonding by heating at a low temperature and maintaining the bonding strength even at a high temperature. An object is to provide a rotating electric machine using the same.
【０００７】[0007]
【課題を解決するための手段】本発明の自己融着性絶縁
電線は、導体上に直接または他の絶縁層を介して、
（イ）ポリエーテルスルホンと、（ロ）ビスマレイミ
ド、および（ハ）ポリシアネート、芳香族ジアミンおよ
びエポキシ化合物の群より選ばれた 1種以上とを有機溶
剤に溶解してなる塗料を塗布乾燥してなることを特徴と
するものである。The self-fusing insulated wire according to the present invention is provided on a conductor directly or through another insulating layer.
(A) Polyethersulfone, (b) Bismaleimide, and (c) at least one selected from the group consisting of polycyanates, aromatic diamines, and epoxy compounds are dissolved in an organic solvent. It is characterized by becoming.
【０００８】また、本発明の回転電機は、コイル芯上
に、上記自己融着性絶縁電線を巻回し一体に熱融着して
なる絶縁コイルを具備したことを特徴とするものであ
る。Further, the rotating electric machine according to the present invention is characterized in that the self-fusing insulated wire is wound on the coil core and heat-fused integrally with the coil to form an insulating coil.
【０００９】さらに、本発明の他の回転電機は、自動車
の内燃機関の主軸に直結されて自動車の電気制動および
補助加速を行なう回転電機であって、コイル芯上に、請
求項１記載の自己融着性絶縁電線を巻回し一体に熱融着
してなる絶縁コイルを具備したことを特徴とするもので
ある。Further, another rotating electric machine according to the present invention is a rotating electric machine which is directly connected to a main shaft of an internal combustion engine of an automobile to perform electric braking and auxiliary acceleration of the automobile, and has a self-rotating electric motor according to claim 1 on a coil core. An insulating coil formed by winding a fusible insulated wire and heat-sealing the same integrally is provided.
【００１０】本発明で使用される（イ）の成分であるポ
リエーテルスルホンは、平均分子量が 10000以上の下記
一般式で示されるものである。The polyether sulfone used as the component (a) in the present invention has an average molecular weight of 10,000 or more and is represented by the following general formula.
【００１１】[0011]
【化１】 （但し、式中、ｎは正の整数である。）市販品を例示す
ると、たとえば三井東圧化学社製のビクトレックス PE
S、住友化学社製のビクトレックス PES（商品名）、米
国Ｉ．Ｃ．Ｉ社製のビクトレックス PES 200P 、 PES 3
00P （以上、商品名）などがあげられる。Embedded image (Where n is a positive integer.) Examples of commercially available products include, for example, Victrex PE manufactured by Mitsui Toatsu Chemicals, Inc.
S, Victrex PES (trade name) manufactured by Sumitomo Chemical Co., Ltd .; C. Company I Victrex PES 200P, PES 3
00P (the above is a trade name).
【００１２】（ロ）の成分のビスマレイミドは、下記一
般式で示されるものであり、なかでも、ｘが -CH2 - 基
のものが好適する。The bismaleimide of the component (b) is represented by the following general formula, and in particular, those in which x is a —CH 2 — group are preferred.
【００１３】[0013]
【化２】 （但し、式中、ｘは-O-,-S-, -SO2 - または -CH2 - で
ある。）市販品を例示すると、たとえば三井東圧化学社
製の BMI（商品名）などがあげられる。Embedded image (Wherein, x is -O -, - S-, -SO 2 - or -CH 2 -. A a) To illustrate commercially, for example Mitsui Toatsu Chemicals, Inc. of BMI (trade name) and the like can give.
【００１４】（ハ）の成分のポリシアネートとしては、
ビスフェノールＡジシアネートや,その三量体、五量
体、七量体などがあげられる。なかでもビスフェノール
Ａジシアネートが好適する。市販品を例示すると、たと
えば（ロ）のビスマレイミドとの混合物として三菱瓦斯
化学社製のＢＴレジン（商品名）などがあげられる。As the polycyanate of the component (c),
Bisphenol A dicyanate and its trimer, pentamer, heptamer and the like can be mentioned. Among them, bisphenol A dicyanate is preferred. Examples of commercially available products include BT resin (trade name) manufactured by Mitsubishi Gas Chemical Company as a mixture with bismaleimide (b).
【００１５】また、芳香族ジアミンとしては、 4,4′-
ジアミノジフェニルメタン（ＤＡＭ）、 4,4′- ジアミ
ノジフェニルプロパン、 4,4′- ジアミノジフェニルエ
ーテル、ベンチジン、 4,4′- ジアミノジフェニルスル
フィド、 3,3′- ジアミノジフェニルスルホン、 4,4′
- ジアミノジフェニルスルホン、m-トルイレンジアミ
ン、m-フェニレンジアミン、p-フェニレンジアミン、
2,6- ジアミノピリジン、ビス（4-アミノフェニル）ジ
エチルシランなどがあげられ、なかでも 4,4′- ジアミ
ノジフェニルメタンが好適する。市販品を例示すると、
たとえば三井東圧化学社製の MDA-220（商品名）などが
あげられる。As the aromatic diamine, 4,4'-
Diaminodiphenylmethane (DAM), 4,4'-diaminodiphenylpropane, 4,4'-diaminodiphenylether, benzidine, 4,4'-diaminodiphenylsulfide, 3,3'-diaminodiphenylsulfone, 4,4 '
-Diaminodiphenyl sulfone, m-toluylenediamine, m-phenylenediamine, p-phenylenediamine,
Examples thereof include 2,6-diaminopyridine and bis (4-aminophenyl) diethylsilane, among which 4,4'-diaminodiphenylmethane is preferable. To illustrate a commercial product,
For example, MDA-220 (trade name) manufactured by Mitsui Toatsu Chemical Co., Ltd. can be mentioned.
【００１６】さらに、エポキシ化合物としては、分子中
に少なくとも 2個以上のエポキシ基を有するものが好適
し、たとえばビスフェノールＡ型エポキシ樹脂などが使
用される。市販品を例示すると、たとえば（ロ）のビス
マレイミドとの混合物としてシェル社製のエピコート10
07（商品名）、東都化成社製のエピトート YB-017 （商
品名）などがあげられる。Further, as the epoxy compound, a compound having at least two or more epoxy groups in a molecule is preferable, and for example, a bisphenol A type epoxy resin is used. As a commercial product, for example, as a mixture with bismaleimide (b), Epicoat 10 manufactured by Shell
07 (trade name) and Epitote YB-017 (trade name) manufactured by Toto Kasei.
【００１７】これらの（ハ）の成分のポリシアネート、
芳香族ジアミン、およびエポキシ化合物は、それぞれを
単独で使用してもよく、あるいは 2種以上を混合して使
用してもよい。The polycyanate of the component (c),
The aromatic diamine and the epoxy compound may be used alone or in combination of two or more.
【００１８】上記（ロ）および（ハ）の成分は、融着の
ための加熱条件を緩和する効果を有する。すなわち、
（イ）成分のみでは、高温時の接着力に優れるものの、
融着には高温での加熱を必要とする。しかしながら、
（ロ）および（ハ）の成分を配合することにより、低い
加熱温度で融着することが可能になり、しかも高温時の
接着力を低下させることもない。なお、（ロ）の成分、
あるいは（ハ）の成分を単独で（イ）の成分に配合した
だけでは、このような効果は得られない。The components (b) and (c) have an effect of relaxing heating conditions for fusion. That is,
(I) Although the component alone has excellent adhesive strength at high temperatures,
Fusion requires heating at a high temperature. However,
By blending the components (b) and (c), it becomes possible to perform fusion at a low heating temperature, and furthermore, it does not lower the adhesive strength at high temperatures. The component (b),
Alternatively, such an effect cannot be obtained only by blending the component (c) alone with the component (a).
【００１９】上記効果を得るための、（イ）〜（ハ）の
各成分の好ましい配合比は、（イ）の成分のポリエーテ
ルスルホン 100重量部あたり、（ロ）の成分のビスマレ
イミドと（ハ）の成分のポリシアネート、芳香族ジアミ
ンおよびエポキシ化合物の群より選ばれた 1種以上との
合計量が 5〜300 重量部であって、かつ（ロ）の成分と
（ハ）の成分の配合比が、（ロ）の成分 100重量部あた
り（ハ）の成分が50〜1000重量部の範囲である。より好
ましくは（ロ）の成分と（ハ）の成分の合計量が（イ）
の成分 100重量部あたり25〜200 重量部の範囲であっ
て、（ロ）の成分100重量部あたり（ハ）の成分が60〜9
00 重量部の範囲である。In order to obtain the above-mentioned effects, a preferable compounding ratio of each of the components (a) to (c) is such that the bismaleimide of the component (b) and ( The total amount of the component (c) is at least 5 to 300 parts by weight with at least one selected from the group consisting of polycyanates, aromatic diamines and epoxy compounds, and the components (b) and (c) The compounding ratio is such that the component (c) is in the range of 50 to 1000 parts by weight per 100 parts by weight of the component (b). More preferably, the total amount of the component (b) and the component (c) is (a)
Component is in the range of 25 to 200 parts by weight per 100 parts by weight of component (b), and component (c) is 60 to 9 per 100 parts by weight of component (b).
It is in the range of 00 parts by weight.
【００２０】次に、上記各成分を溶解または分散させる
有機溶剤としては、クレゾール、キシレノール、フェノ
ールなどのフェノール系溶剤、N-メチル-2- ピロリド
ン、ジメチルアセトアミド（ＤＭＡＣ）、ジメチルホル
ムアミドなどの含窒素系溶剤、シクロヘキサノン、メチ
ルエチルケトン、メチルヘキサノン、アセトフェノンな
どのケトン系溶剤、メチルカルビトール、カルビトー
ル、メチルセロソルブアセテート、メチルセロソルブ、
イソプルピルベンジルアルコールなどのアルコール系溶
剤、ベンゼン、キシレン、トルエン、ソルベントナフサ
などの炭化水素系溶剤などがあげられ、これらは 1種を
単独で使用してもよく、2 種以上を混合して使用しても
よい。Examples of the organic solvent for dissolving or dispersing the above components include phenol solvents such as cresol, xylenol and phenol, and nitrogen-containing solvents such as N-methyl-2-pyrrolidone, dimethylacetamide (DMAC) and dimethylformamide. Solvent, ketone solvents such as cyclohexanone, methyl ethyl ketone, methyl hexanone, acetophenone, methyl carbitol, carbitol, methyl cellosolve acetate, methyl cellosolve,
Examples include alcohol solvents such as isopropyl benzyl alcohol, and hydrocarbon solvents such as benzene, xylene, toluene, and solvent naphtha.One of these may be used alone, or a mixture of two or more thereof may be used. May be used.
【００２１】本発明の自己融着性絶縁電線は、上記有機
溶剤に前記（イ）〜（ハ）の各成分を溶解させた塗料
を、導体上に直接あるいは他の絶縁層を介して塗布し、
加熱乾燥することにより得られる。加熱温度は、 250〜
450 ℃程度が適当で、（ロ）の成分と（ハ）の成分が反
応してこれらの低分子重合体が得られ、半硬化状態の塗
膜が形成される。The self-fusing insulated wire of the present invention is obtained by applying a coating material obtained by dissolving the above-mentioned components (a) to (c) in the above-mentioned organic solvent, directly or via another insulating layer on a conductor. ,
It is obtained by heating and drying. Heating temperature is 250 ~
The temperature is about 450 ° C., and the components (b) and (c) react with each other to obtain these low molecular weight polymers, whereby a semi-cured coating film is formed.
【００２２】なお、他の絶縁層を介して設ける場合、他
の絶縁層は、絶縁電線用塗料を導体上に塗布し、これが
完全硬化するまで焼付けて形成する。絶縁電線用塗料と
しては、耐熱性に優れたものが好ましく、ホルマール樹
脂、エポキシウレタン樹脂、ポリエステル樹脂、ポリエ
ステルイミド樹脂、ポリアミドイミド樹脂、ポリイミド
樹脂などの公知の塗料のほか、前記の融着層形成用の塗
料などが好適に使用される。In the case where another insulating layer is interposed, the other insulating layer is formed by applying an insulated wire paint on the conductor and baking it until it is completely cured. As the coating for insulated wires, those having excellent heat resistance are preferable, and in addition to known coatings such as formal resin, epoxy urethane resin, polyester resin, polyester imide resin, polyamide imide resin, and polyimide resin, the above-mentioned fused layer formation Paints and the like are preferably used.
【００２３】このようにして得られた本発明の自己融着
性絶縁電線は、コイル成形後、160〜240 ℃程度（通
常、160 〜200 ℃の温度範囲で十分である。）の温度で
20〜30分間加熱することにより表面が軟化し、十分な強
度をもって一体に融着する。そして、その接着力は、高
温時でも大きく低下することはない。The self-fusing insulated wire of the present invention thus obtained is formed at a temperature of about 160 to 240 ° C. (generally, a temperature range of 160 to 200 ° C. is sufficient) after coil formation.
By heating for 20 to 30 minutes, the surface is softened and fused together with sufficient strength. Then, the adhesive strength does not significantly decrease even at a high temperature.
【００２４】本発明の自己融着性絶縁電線は、このよう
に、比較的低い温度の加熱で強固に融着し、しかも、高
温時でも優れた接着力が保持されるため、耐熱性が要求
される用途、たとえばトランス用コイル、耐熱機器の回
転電機用コイルなどに有用で、自動車の電気制動および
補助加速を行なうための回転電機用コイルのように、極
めて過酷なヒートサイクルが負荷される用途にも適用可
能である。As described above, the self-fusing insulated wire of the present invention is strongly fused by heating at a relatively low temperature, and has excellent adhesive strength even at a high temperature. Useful for applications such as coils for transformers, coils for rotating electrical machines in heat-resistant equipment, and applications where extremely severe heat cycles are loaded, such as coils for rotating electrical machines for electric braking and auxiliary acceleration of automobiles Is also applicable.
【００２５】[0025]
【作用】このように本発明の自己融着性絶縁電線におい
ては、融着層が、ポリエーテルスルホンと、ビスマレイ
ミドと、ポリシアネート、芳香族ジアミンおよびエポキ
シ化合物の群より選ばれた 1種以上とを主体とする塗料
を塗布乾燥して形成されたものであるため、比較的低い
温度の加熱で融着することができ、しかも、高温時の接
着力にも優れている。As described above, in the self-fusing insulated wire of the present invention, the fusion layer is formed of at least one member selected from the group consisting of polyether sulfone, bismaleimide, polycyanate, aromatic diamine and epoxy compound. Since it is formed by applying and drying a coating mainly composed of (1) and (2), it can be fused by heating at a relatively low temperature, and has excellent adhesive strength at high temperatures.
【００２６】また、本発明の回転電機は、上記自己融着
性絶縁電線が用いられているので、耐熱性に優れたもの
となり、過酷なヒートサイクルが負荷される自動車の電
気制動および補助加速を行う装置の回転電機としても、
十分に実用に耐えることができる。In addition, since the rotating electric machine of the present invention uses the above-mentioned self-fusing insulated wire, it has excellent heat resistance, and can perform electric braking and auxiliary acceleration of a vehicle subjected to a severe heat cycle. As a rotating electric machine of the device that performs,
It can fully withstand practical use.
【００２７】[0027]
【実施例】以下、本発明の実施例を記載する。 実施例１〜１２ ポリエーテルスルホンのビクトレックス PESと、ビスマ
レイミドとポリシアネートのビスフェノールＡジシアネ
ートとを混合した BT レジンと、ビスマレイミドと芳香
族ジアミンのＤＡＭとを混合したケルイミド 601（チバ
ガイギ−社製商品名）と、ビスマレイミドとエポキシ化
合物とを混合したエピコート1007とを、表１に示す組成
となるように有機溶剤ＤＭＡＣに溶解して調製した塗料
を、 0.3mmφのポリエステルイミド線（ 0.3mmφの銅線
上にポリエステルイミド塗料を20μｍ厚に塗布焼付けた
もの）に塗布し、炉長 3ｍの焼付機を用いてＤＶ値（線
径×線速）18〜21、温度 320〜370 ℃の条件で焼付けし
て、塗膜厚10μｍの自己融着性絶縁電線を得た。EXAMPLES Examples of the present invention will be described below. Examples 1 to 12 Victrex PES of polyethersulfone, BT resin obtained by mixing bismaleimide and bisphenol A dicyanate of polycyanate, and Kerimide 601 obtained by mixing bismaleimide and DAM of aromatic diamine (manufactured by Ciba Geigy Co., Ltd.) (Trade name) and Epicoat 1007 in which bismaleimide and an epoxy compound are mixed are dissolved in an organic solvent DMAC so as to have a composition shown in Table 1, and a coating is prepared using a 0.3 mmφ polyesterimide wire (0.3 mmφ). A polyester imide paint is applied to copper wire and baked to a thickness of 20 μm), and baked using a baking machine with a furnace length of 3 m at a DV value (wire diameter x wire speed) of 18 to 21 and a temperature of 320 to 370 ° C. Thus, a self-fusing insulated wire having a coating thickness of 10 μm was obtained.
【００２８】次いで、得られた自己融着性絶縁電線の常
温および高温雰囲気下での接着力を測定した。測定は、
ASTM D-2519 に基づいて行い、まず自己融着性絶縁電線
を直径 5mmのマンドレルに巻き付けて長さ約70mmのヘリ
カコイルを作成し、 160℃、180℃、 200℃、 220℃、
240℃の温度でそれぞれ30分間加熱した試料について、
常温で、支点間距離44.4mm、速度20mm/minの条件で折り
曲げ試験を行って、各融着条件による常温での接着力を
測定した。また、同様に作成したヘリカコイルを 220℃
の温度で30分間加熱した試料について、 120℃、 140
℃、 160℃、 180℃の温度雰囲気で、常温の場合と同じ
条件で折り曲げ試験を行い、それぞれの温度雰囲気にお
ける接着力を測定した。これらの結果を、表１に示す。Next, the adhesive strength of the obtained self-fusing insulated wire under normal temperature and high temperature atmosphere was measured. The measurement is
Based on ASTM D-2519, a self-fusing insulated wire was first wound around a 5 mm diameter mandrel to create a helical coil with a length of about 70 mm, which was 160 ° C, 180 ° C, 200 ° C, 220 ° C,
For samples heated at 240 ° C for 30 minutes each,
At room temperature, a bending test was performed under the conditions of a distance between supports of 44.4 mm and a speed of 20 mm / min, and the adhesive strength at room temperature under each fusion condition was measured. The helical coil created in the same way was
120 ° C, 140
A bending test was performed in a temperature atmosphere of 160 ° C., 160 ° C., and 180 ° C. under the same conditions as those at normal temperature, and the adhesive strength in each temperature atmosphere was measured. Table 1 shows the results.
【００２９】なお、表中、比較例として示したのは、比
較例１が、ポリエーテルスルホンのみをポリエステルイ
ミド線上に塗布焼付けた例、比較例２は、フェノキシ樹
脂塗料 ISOPOXY 506K （日触スケネクタディ社製 商品
名）を単独で塗布焼付けた自己融着性絶縁電線の例、比
較例３は、共重合ポリアミド樹脂塗料 TCV-U2 （東特塗
料社製 商品名）を単独で塗布焼付けた自己融着性絶縁
電線の例、さらに比較例４は、ポリエステル樹脂塗料 U
-100（ユニチカ社製 商品名）を単独で塗布焼付けた自
己融着性絶縁電線の例で、いずれも本発明との比較のた
めに示したものである。なお、比較例２〜４の接着力
は、それぞれ 180℃で10分間、 180℃で10分間、 250℃
で30分間加熱融着させたものについて測定したものであ
る。In the table, comparative examples are shown as Comparative Example 1 in which only polyethersulfone was coated on a polyesterimide wire and baked, and Comparative Example 2 was a phenoxy resin paint ISOPOXY 506K (Nisshin Schenectady Co., Ltd.). Self-fusing insulated wire, coated and baked independently, and Comparative Example 3 is self-fused, coated and baked with the copolymerized polyamide resin paint TCV-U2 (trade name, manufactured by Totoku Paint Co., Ltd.). The example of the conductive insulated wire, and the comparative example 4 is a polyester resin paint U
-100 (trade name, manufactured by Unitika Ltd.) is an example of a self-fusing insulated wire coated and baked alone, all of which are shown for comparison with the present invention. The adhesive strengths of Comparative Examples 2 to 4 were 180 ° C. for 10 minutes, 180 ° C. for 10 minutes, 250 ° C.
The measurement was carried out for a sample that was heated and fused for 30 minutes.
【００３０】[0030]
【表１】 表１からも明らかなように、本発明の自己融着性絶縁電
線は、低い温度の融着条件でも、十分な接着力が得られ
ており、かつ、高温時の接着力にも優れている。実施例
１３〜２４ 1mmφの軟銅線上に下式で示される化学構造を有するピ
ロメリティックジアンハイドライドタイプのポリイミド
ワニスを約 5μｍ厚に塗布し、 400〜450 ℃の温度で焼
付けた後、この塗布焼付を 7回繰返して、被膜厚約35μ
ｍのポリイミド線を得た。次いで、このポリイミド線上
に、上記実施例１〜１２で調製した各塗料を塗布し、炉
長 3ｍの焼付機を用いてＤＶ値18〜21、温度 320〜370
℃の条件で焼付けして、塗膜厚20μｍの自己融着性絶縁
電線を得た。[Table 1] As is clear from Table 1, the self-fusing insulated wire of the present invention has a sufficient adhesive strength even under low-temperature fusion conditions, and has excellent adhesive strength at high temperatures. . Examples 13 to 24 A polyimide varnish of pyrometic dianhydride type having a chemical structure represented by the following formula was applied on a 1 mmφ soft copper wire to a thickness of about 5 μm, baked at a temperature of 400 to 450 ° C., and baked. Repeat 7 times to obtain a coating thickness of about 35μ.
m was obtained. Next, the respective coating materials prepared in the above Examples 1 to 12 were applied on this polyimide wire, and the DV value was 18 to 21 and the temperature was 320 to 370 by using a baking machine having a furnace length of 3 m.
It was baked under the condition of ° C. to obtain a self-fusing insulated wire having a coating thickness of 20 μm.
【００３１】[0031]
【化３】 実施例２５〜３６ 1mmφの軟銅線上に、上記実施例１３〜２４で用いたも
のと同種のポリイミドワニスを約 5μｍ厚に塗布し、 4
00〜450 ℃の温度で焼付けた後、この塗布焼付を 5回繰
返し、さらに、その上にポリアミドイミドワニスを約 5
μｍ厚に塗布し焼付けて、被膜厚約35μｍのポリアミド
イミドオーバコートポリイミド線を得た。次いで、この
ポリアミドイミドオーバコートポリイミド線上に、上記
実施例１〜１２で調製した各塗料を塗布し、炉長 3ｍの
焼付機を用いてＤＶ値18〜21、温度 320〜370 ℃の条件
で焼付けして、塗膜厚20μｍの自己融着性絶縁電線を得
た。Embedded image Examples 25 to 36 The same type of polyimide varnish as used in Examples 13 to 24 was applied on a 1 mmφ soft copper wire to a thickness of about 5 μm.
After baking at a temperature of 00 to 450 ° C., this coating and baking is repeated 5 times, and a polyamide-imide varnish is further
It was applied to a thickness of μm and baked to obtain a polyamideimide overcoated polyimide wire having a coating thickness of about 35 μm. Then, the respective coating materials prepared in Examples 1 to 12 were applied on the polyamide-imide overcoated polyimide wire, and baked using a baking machine having a furnace length of 3 m under the conditions of a DV value of 18 to 21 and a temperature of 320 to 370 ° C. Thus, a self-fusing insulated wire having a coating thickness of 20 μm was obtained.
【００３２】次に、得られた上記各実施例の自己融着性
絶縁電線を用いて回転電機を作製した。すなわち、磁性
鋼板を積層した鉄心上に、アラミド紙およびポリイミド
フィルムからなる所定のスロット絶縁を介して巻回し、
230℃で 2時間加熱して、線間を一体に融着させた。Next, a rotating electric machine was manufactured using the obtained self-fusing insulated wires of each of the above embodiments. That is, on a magnetic steel sheet laminated iron core, wound through a predetermined slot insulation made of aramid paper and polyimide film,
By heating at 230 ° C. for 2 hours, the lines were fused together.
【００３３】続いて、このようにして作製した回転電機
を、図１に示す自動車の電気制動および補助加速を行な
う電気制動および補助加速装置の回転電機として装着し
た。ここで、この電気制動および補助加速装置について
説明する。この装置は、図１に示すように、内燃機関１
にその回転子部を直結した回転電機２と、二次電池回路
３と、制御装置４と、抵抗器５とから構成されており、
自動車の制動時の過剰な電気エネルギーを抵抗器５から
消散させて高い制動力を維持することができる、低いコ
ストで補助的な駆動手段としても動作させることができ
る、制動によって発生するエネルギーを効率よく回生さ
せることができる、回転速度の広い範囲にわたり、また
長時間にわたり、大きいブレーキトルクを有効に発生さ
せる実用的な形態を得ることができるなどの特長を有し
ている。しかしながら、一方、この装置の回転電機に使
用されている巻線には、自動車の制動および加速を繰返
すことによって、急激な温度上昇と下降とが繰返され、
いわゆるヒートサイクルが負荷されるため、導体、絶縁
被膜、および鉄心間の熱膨張率の違いによって生ずる熱
応力や熱劣化により、絶縁被膜にクラックが発生し、電
気的な絶縁が劣化して短絡により焼損しやすい。しかし
て、上記の回転電機を用いて作製した電気制動および補
助加速装置は、実用に十分に耐えるものであった。Subsequently, the rotating electric machine manufactured in this manner was mounted as a rotating electric machine of an electric braking and auxiliary acceleration device for performing electric braking and auxiliary acceleration of an automobile shown in FIG. Here, the electric braking and auxiliary acceleration device will be described. This device, as shown in FIG.
A rotating electric machine 2 having a rotor portion directly connected thereto, a secondary battery circuit 3, a control device 4, and a resistor 5,
Excessive electric energy during braking of the vehicle can be dissipated from the resistor 5 to maintain a high braking force, can be operated as an auxiliary driving means at a low cost, and the energy generated by braking is efficiently used. It has features such as being able to regenerate well and to obtain a practical form that effectively generates a large brake torque over a wide range of rotation speeds and for a long time. However, on the other hand, the windings used in the rotating electrical machine of this device are repeatedly subjected to rapid braking and acceleration of the vehicle, so that a rapid rise and fall in temperature are repeated.
Because a so-called heat cycle is applied, cracks occur in the insulating coating due to thermal stress and thermal degradation caused by the difference in the coefficient of thermal expansion between the conductor, the insulating coating, and the iron core. Easy to burn. Thus, the electric braking and auxiliary accelerating device manufactured by using the above-described rotating electric machine has sufficiently endured practical use.
【００３４】ちなみに、図１の内燃機関１をモータで構
成した模擬装置に、上記の回転電機を組み込んで、自動
車の模擬走行試験を行ったところ、次のような良好な結
果が得られた。すなわち、交流モータにより商用電源で
の周波数による回転数でモータを駆動し、発電モードで
コイル取付の熱電対の温度が 200℃になるまで発電し、
200℃到達後は発電モードを切り、常温まで冷却させた
後、再度発電を繰り返すことにより、 200℃→常温→ 2
00℃のヒートサイクルを実際の自動車のヒートサイクル
の頻度で繰り返した。なお、この用途では、一般にイン
バータで回転電機の制御を行うので通常の電圧の他にイ
ンバータより発生する転流サージ電圧も加わり、絶縁被
膜にとって、実際にはさらに厳しい条件となる。したが
って、この模擬走行試験においても、これら実際の条件
を具現化するためインバータを使用して行った。結果
は、いずれの回転電機を用いたものであっても、この過
酷な運転試験で絶縁の異常は見られず、試験終了後の絶
縁破壊試験においても、絶縁破壊電圧は、線間、相間、
対地間とも、運転時に加わる電圧の 4倍以上の強さがあ
った。By the way, when the above-described rotating electric machine was incorporated into a simulation device in which the internal combustion engine 1 of FIG. 1 was constituted by a motor, and a simulation driving test of an automobile was performed, the following good results were obtained. In other words, the motor is driven by the AC motor at the rotation speed according to the frequency of the commercial power supply, and in the power generation mode, power is generated until the temperature of the thermocouple with the coil attached reaches 200 ° C.
After reaching 200 ° C, turn off the power generation mode, cool to room temperature, and repeat the power generation again.
The 00 ° C. heat cycle was repeated at the frequency of the actual automobile heat cycle. In this application, since the rotating electric machine is generally controlled by an inverter, a commutation surge voltage generated by the inverter is also applied in addition to the normal voltage, so that the insulating film is actually more severe. Therefore, in this simulated driving test, an inverter was used to realize these actual conditions. As a result, no matter what kind of rotating electric machine was used, no abnormalities in insulation were observed in this severe operation test, and in the insulation breakdown test after the test, the insulation breakdown voltage was between lines, between phases,
Between the ground, the strength was more than four times the voltage applied during operation.
【００３５】[0035]
【発明の効果】以上説明したように、本発明によれば、
低い温度で融着させることができるので、作業性に優
れ、かつ加工の際に主絶縁層の劣化を招くことがなく、
そのうえ、高温時の接着力にも優れた自己融着性絶縁電
線を提供することができる。また、したがって、自己融
着性絶縁電線を用いて、耐熱性や耐ヒートサイクル性が
要求される用途、たとえば自動車の電気制動および補助
加速装置に用いる回転電機を実現することが可能とな
る。As described above, according to the present invention,
Because it can be fused at a low temperature, it is excellent in workability and does not cause deterioration of the main insulating layer during processing,
In addition, it is possible to provide a self-fusing insulated wire having excellent adhesive strength at high temperatures. Therefore, it is possible to use the self-fusing insulated wire to realize an application requiring heat resistance and heat cycle resistance, for example, a rotating electric machine used for an electric braking and auxiliary acceleration device of an automobile.
【図１】本発明の回転電機を用いた自動車の電気制動お
よび補助加速装置の一例を示す構成図。FIG. 1 is a configuration diagram showing an example of an electric braking and auxiliary acceleration device for an automobile using a rotating electric machine according to the present invention.
１………内燃機関 ２………回転電機 ３………二次電池回路 ４………制御装置 ５………抵抗器 DESCRIPTION OF SYMBOLS 1 ... Internal combustion engine 2 ... Rotating electric machine 3 ... Secondary battery circuit 4 ... Control device 5 ... Resistor
───────────────────────────────────────────────────── フロントページの続き (72)発明者 下平 和夫 神奈川県川崎市川崎区小田栄２丁目１番 １号 昭和電線電纜株式会社内 (72)発明者 三井 久安 神奈川県横浜市鶴見区末広町２の４ 株 式会社東芝 京浜事業所内 (56)参考文献 特開 平50−101876（ＪＰ，Ａ) 特開 平54−148029（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) H01B 7/02 H01B 3/40 H01B 7/29 H02K 3/30 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuo Shimohira 2-1-1, Oda Sakae, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Inside Showa Electric Wire & Cable Co., Ltd. (72) Inventor Kuyasu 2 Suehiro-cho, Tsurumi-ku, Yokohama-shi, Kanagawa (56) References JP-A-50-101876 (JP, A) JP-A-54-148029 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB (Name) H01B 7/02 H01B 3/40 H01B 7/29 H02K 3/30
Claims (3)
て、（イ）ポリエーテルスルホンと、（ロ）ビスマレイ
ミド、および（ハ）ポリシアネート、芳香族ジアミンお
よびエポキシ化合物の群より選ばれた 1種以上とを有機
溶剤に溶解してなる塗料を塗布乾燥してなることを特徴
とする自己融着性絶縁電線。(1) a polyether sulfone, (b) bismaleimide, and (c) a group of polycyanates, aromatic diamines, and epoxy compounds, which are directly or through an insulating layer on a conductor. A self-fusing insulated wire, characterized in that it is obtained by applying and drying a paint obtained by dissolving at least one kind in an organic solvent.
性絶縁電線を巻回し一体に熱融着してなる絶縁コイルを
具備したことを特徴とする回転電機。2. A rotating electric machine comprising: an insulating coil formed by winding the self-fusing insulated wire according to claim 1 on a coil core and heat-sealing the coil integrally.
動車の電気制動および補助加速を行なう回転電機であっ
て、コイル芯上に、請求項１記載の自己融着性絶縁電線
を巻回し一体に熱融着してなる絶縁コイルを具備したこ
とを特徴とする回転電機。3. A rotating electric machine which is directly connected to a main shaft of an internal combustion engine of an automobile and performs electric braking and auxiliary acceleration of the automobile, wherein the self-fusing insulated wire according to claim 1 is wound on a coil core and integrated therewith. A rotating electric machine comprising an insulating coil that is heat-sealed to a rotating machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26728593A JP3164949B2 (en) | 1993-10-26 | 1993-10-26 | Self-fusing insulated wire and rotating electric machine using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26728593A JP3164949B2 (en) | 1993-10-26 | 1993-10-26 | Self-fusing insulated wire and rotating electric machine using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07122120A JPH07122120A (en) | 1995-05-12 |
| JP3164949B2 true JP3164949B2 (en) | 2001-05-14 |
Family
ID=17442711
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26728593A Expired - Fee Related JP3164949B2 (en) | 1993-10-26 | 1993-10-26 | Self-fusing insulated wire and rotating electric machine using the same |
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| Country | Link |
|---|---|
| JP (1) | JP3164949B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3852809B2 (en) | 1998-10-30 | 2006-12-06 | 独立行政法人科学技術振興機構 | High strength and toughness Zr amorphous alloy |
| FR2854900B1 (en) * | 2003-05-16 | 2007-07-27 | Nexans | COMPOSITION FOR ADHERENT LAYER, ELECTRICAL CONDUCTOR COATED WITH SUCH A ADHERENT LAYER AND METHOD OF MANUFACTURING SUCH AN ELECTRICAL CONDUCTOR |
| CN100582529C (en) | 2003-09-02 | 2010-01-20 | 并木精密宝石株式会社 | Precision gear, and production method of precision gear |
| US7051824B1 (en) | 2003-11-03 | 2006-05-30 | Accessible Technologies, Inc. | Supercharged motorcycle |
| JP5080915B2 (en) * | 2007-09-14 | 2012-11-21 | 日立マグネットワイヤ株式会社 | Heat-resistant self-bonding coating composition and heat-resistant self-bonding enameled wire |
-
1993
- 1993-10-26 JP JP26728593A patent/JP3164949B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07122120A (en) | 1995-05-12 |
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