JP5128191B2 - Insulated wires with improved soldering and electrical service life - Google Patents
Insulated wires with improved soldering and electrical service life Download PDFInfo
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- JP5128191B2 JP5128191B2 JP2007175306A JP2007175306A JP5128191B2 JP 5128191 B2 JP5128191 B2 JP 5128191B2 JP 2007175306 A JP2007175306 A JP 2007175306A JP 2007175306 A JP2007175306 A JP 2007175306A JP 5128191 B2 JP5128191 B2 JP 5128191B2
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- soldering
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- service life
- insulating
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- 238000005476 soldering Methods 0.000 title claims description 35
- 239000003973 paint Substances 0.000 claims description 32
- 229920000728 polyester Polymers 0.000 claims description 28
- 239000004020 conductor Substances 0.000 claims description 16
- 239000003963 antioxidant agent Substances 0.000 claims description 13
- 230000003078 antioxidant effect Effects 0.000 claims description 11
- 229920002635 polyurethane Polymers 0.000 claims description 8
- 239000004814 polyurethane Substances 0.000 claims description 8
- 239000002738 chelating agent Substances 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 19
- 238000000576 coating method Methods 0.000 description 13
- 235000006708 antioxidants Nutrition 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 12
- 239000002320 enamel (paints) Substances 0.000 description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 239000000945 filler Substances 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- 210000003298 dental enamel Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 150000004703 alkoxides Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000011256 inorganic filler Substances 0.000 description 2
- 229910003475 inorganic filler Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- MBAUOPQYSQVYJV-UHFFFAOYSA-N octyl 3-[4-hydroxy-3,5-di(propan-2-yl)phenyl]propanoate Chemical compound OC1=C(C=C(C=C1C(C)C)CCC(=O)OCCCCCCCC)C(C)C MBAUOPQYSQVYJV-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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- Insulated Conductors (AREA)
Description
本発明は、絶縁電線に関し、更に詳しくは、はんだ付けが可能で、且つ課電寿命を向上させた絶縁電線に関するものである。 The present invention relates to an insulated wire, and more particularly, to an insulated wire that can be soldered and has an improved electrical life.
絶縁皮膜を剥離せずに直接はんだ付けが可能な絶縁電線としては、ポリウレタン系絶縁塗料或は耐熱はんだ付け可能な絶縁塗料を導体の外周に塗布,焼付した絶縁電線がある。近年、電気・電子機器の高機能化および高信頼化等の動きに伴い、はんだ付け可能な絶縁電線も長寿命化、耐インバータサージ性などの特性が求められている。例えば耐インバータサージエナメル線に関しては下記特許文献1の発明がある。
耐インバータサージ性などの課電寿命特性を向上させる方法は、一般的には塗料に無機フィラーを分散・混合させる方法がある。その際に、フィラーをnm(ナノメートル)オーダーに均一に分散させなければ課電寿命特性の向上が得られず、また絶縁皮膜の可とう性、伸張性や巻線性などが低下してしまう。しかしながら、フィラーは一般的に微粒子化するほど表面エネルギーが高くなるため、凝集が生じ易くなり、nmオーダーの均一な分散は非常に困難であった。またフィラーの添加量が多くなるほど課電寿命特性は向上するが、例えばポリウレタン系絶縁塗料でははんだ付性が低下してしまうという問題があった。また、無機フィラーとして金属アルコキシドやその誘導体を用いた場合は反応性の高いアルコキシ基などによって塗料のポットライフが短くなってしまうという問題があった。
本発明は、上記従来技術が有する各種問題点を解決するためになされたものであり、はんだ付けが可能であり、且つ課電寿命を向上させた絶縁電線を提供することを目的とする。
In general, there is a method of dispersing and mixing an inorganic filler in a paint as a method of improving the electric life characteristic such as the inverter surge resistance. At that time, unless the filler is evenly dispersed in the order of nm (nanometer), it is impossible to improve the service life characteristic, and the flexibility, stretchability, winding property and the like of the insulating film are deteriorated. However, since fillers generally have higher surface energy as they are made finer, aggregation tends to occur, and uniform dispersion on the order of nm is very difficult. In addition, as the amount of the filler added increases, the electrical charging life characteristics improve. However, for example, there is a problem that the solderability of the polyurethane-based insulating paint is lowered. Further, when a metal alkoxide or a derivative thereof is used as the inorganic filler, there is a problem that the pot life of the coating is shortened due to a highly reactive alkoxy group or the like.
The present invention has been made in order to solve the various problems of the prior art described above, and an object of the present invention is to provide an insulated wire that can be soldered and has an improved service life.
第1の観点として本発明は、導体の外周にポリウレタン系絶縁塗料或は耐熱はんだ付け可能な絶縁塗料を塗布,焼付してはんだ付け絶縁皮膜を設け、この外周にポリエステル系絶縁塗料を塗布,焼付して0.002〜0.004mm厚さのポリエステル系絶縁皮膜を設けることにより、はんだ付けが可能であり、且つ課電寿命を向上させたことを特徴とするはんだ付け・課電寿命向上絶縁電線にある。
前記導体としては、Cu(銅)、Al(アルミニウム)、CCA(銅クラッドアルミニウム)等が挙げられる。前記ポリウレタン系絶縁塗料或は耐熱はんだ付け可能な絶縁塗料としては、ポリウレタン絶縁塗料、ポリエステルウレタン系絶縁塗料或は、はんだ付け可能なポリエステルイミド系絶縁塗料等が挙げられる。またポリエステル系絶縁塗料としては、汎用のポリエステル絶縁塗料を用いることができる。
上記第1観点の絶縁電線では、1層目のはんだ付け絶縁皮膜の外周に、2層目の0.002〜0.004mm厚さのポリエステル系絶縁皮膜を設けることにより、可とう性、伸張性、巻線性、はんだ付性および作業性を維持しながら耐インバータサージ性などの課電寿命を向上させることができる。
なお、インバータサージによる絶縁皮膜の劣化メカニズムは、部分放電によって電子やオゾンなどの荷電粒子や過酸化物が発生して絶縁皮膜の分子鎖を切断し、さらに部分放電を促すことで絶縁皮膜の劣化が進むとされている。一般的に誘電率の低い樹脂は、部分放電開始電圧が高く、課電寿命特性が良好である。そこで汎用絶縁塗料の中で、最も誘電率が低いポリエステル系絶縁皮膜を形成するポリエステル系塗料をはんだ付け絶縁皮膜の外周に塗布,焼付することで、課電寿命を向上させたものである。
なお前記ポリエステル系絶縁皮膜の厚さを0.002〜0.004mmと限定した理由は、ポリエステル系絶縁皮膜の厚さが0.002mm未満では課電寿命の向上に寄与する効果が十分ではなく、またポリエステル絶縁皮膜の厚さが0.004mmを超えるとはんだ付け性が悪くなるためである。
As a first aspect of the present invention, a polyurethane insulating paint or a heat-resistant solderable insulating paint is applied to the outer periphery of a conductor and baked to provide a soldering insulating film, and a polyester insulating paint is applied to the outer periphery and baked. By providing a polyester-based insulating film having a thickness of 0.002 to 0.004 mm, it is possible to perform soldering and to improve the service life. It is in.
Examples of the conductor include Cu (copper), Al (aluminum), and CCA (copper clad aluminum). Examples of the polyurethane-based insulating paint or the heat-resistant solderable insulating paint include polyurethane insulating paint, polyester urethane-based insulating paint, solderable polyesterimide-based insulating paint, and the like. A general-purpose polyester insulating paint can be used as the polyester insulating paint.
In the insulated wire according to the first aspect, flexibility and stretchability are provided by providing a second layer of a 0.002 to 0.004 mm thick polyester insulating film on the outer periphery of the first soldering insulating film. In addition, while maintaining the winding property, solderability, and workability, it is possible to improve the electric charging life such as inverter surge resistance.
In addition, the deterioration mechanism of the insulation film due to inverter surge is due to the generation of charged particles and peroxides such as electrons and ozone by partial discharge, breaking the molecular chain of the insulation film, and further promoting partial discharge. It is said that will advance. In general, a resin having a low dielectric constant has a high partial discharge starting voltage and good chargeability life characteristics. Therefore, among the general-purpose insulating paints, a polyester-based paint that forms a polyester-based insulating film having the lowest dielectric constant is applied and baked on the outer periphery of the soldering insulating film, thereby improving the electric charging life.
The reason why the thickness of the polyester insulating film is limited to 0.002 to 0.004 mm is that the polyester insulating film thickness is less than 0.002 mm, and the effect of contributing to the improvement of the electric life is not sufficient. Moreover, it is because solderability will worsen when the thickness of a polyester insulating film exceeds 0.004 mm.
第2の観点として本発明は、前記ポリウレタン系絶縁塗料或は耐熱はんだ付け可能な絶縁塗料(以下、はんだ付け絶縁塗料と略記する)叉は/及びポリエステル系絶縁塗料には液状樹脂または溶剤に溶解させた酸化防止剤又はキレート化剤が添加・混合されていることを特徴とするはんだ付け・課電寿命向上絶縁電線にある。
上記第2観点の絶縁電線では、はんだ付け絶縁塗料等には液状樹脂または溶剤に溶解させた酸化防止剤又はキレート化剤(以下、酸化防止剤等と略記する)が添加・混合されているので、前記第1観点の絶縁電線の作用・効果がより強化される。なお、酸化防止剤等が添加された1層目のはんだ付け絶縁皮膜(以下、酸化防止剤添加はんだ付け絶縁皮膜と略記する)叉は/及び2層目のポリエステル系絶縁皮膜(以下、酸化防止剤添加ポリエステル系絶縁皮膜と略記する)中の酸化防止剤等は、部分放電によって発生した荷電粒子や過酸化物などを捕捉および分解することによってそれぞれの絶縁皮膜の劣化を抑え、課電寿命を更に向上させることができる。また酸化防止剤等は液状樹脂または溶剤に溶解させたものを用いるため、塗料においては、フィラーのような凝集・沈降がなく、また金属アルコキシドのようなポットライフの低下は見られない。
As a second aspect of the present invention, the polyurethane-based insulating paint or the heat-resistant solderable insulating paint (hereinafter abbreviated as soldering insulating paint) or / and the polyester-based insulating paint are dissolved in a liquid resin or solvent. The present invention provides an insulated electric wire with improved soldering / electrical service life, characterized in that an added antioxidant or chelating agent is added and mixed.
In the insulated wire according to the second aspect, since the soldering insulating paint or the like is added and mixed with an antioxidant or a chelating agent (hereinafter abbreviated as an antioxidant) dissolved in a liquid resin or solvent. The action / effect of the insulated wire according to the first aspect is further enhanced. In addition, the 1st layer solder insulation film (hereinafter abbreviated as antioxidant addition film) or / and 2nd layer polyester insulation film (hereinafter referred to as oxidation prevention) to which antioxidant etc. were added Antioxidants in the abbreviated polyester-based insulation coatings) suppress the degradation of each insulation coating by trapping and decomposing charged particles and peroxides generated by partial discharges, thereby reducing the service life. Further improvement can be achieved. In addition, since an antioxidant or the like dissolved in a liquid resin or a solvent is used, the coating does not cause aggregation / sedimentation like a filler, and a pot life like a metal alkoxide does not decrease.
本発明の絶縁電線によれば、はんだ付け絶縁皮膜の外周に、0.002〜0.004mm厚さのポリエステル系絶縁皮膜を設けることにより、可とう性、伸張性、巻線性、はんだ付性および作業性を維持しながら耐インバータサージ性などの課電寿命を向上させることが可能となる。また、はんだ付け絶縁皮膜叉は/及びポリエステル系絶縁皮膜に酸化防止剤等を含んでいるものは、更に課電寿命を向上させることが可能となる。従って、本発明は産業上に寄与する効果が極めて大である。 According to the insulated wire of the present invention, by providing a polyester-based insulating film having a thickness of 0.002 to 0.004 mm on the outer periphery of the soldering insulating film, flexibility, stretchability, winding property, solderability and It is possible to improve the service life such as inverter surge resistance while maintaining workability. In addition, when the soldering insulating film or / and the polyester insulating film contains an antioxidant or the like, it is possible to further improve the service life. Therefore, the present invention has an extremely large effect contributing to the industry.
以下、本発明の内容を、図に示す実施の形態により更に詳細に説明する。なお、これにより本発明が限定されるものではない。
図1は、本発明の絶縁電線の実施形態を示す略図である。
これらの図において、1は導体、2ははんだ付け絶縁皮膜、2’は酸化防止剤添加はんだ付け絶縁皮膜、3はポリエステル系絶縁皮膜、3’は酸化防止剤添加ポリエステル系絶縁皮膜、5ははんだ付け・課電寿命向上絶縁電線である。
Hereinafter, the contents of the present invention will be described in more detail with reference to embodiments shown in the drawings. Note that the present invention is not limited thereby.
FIG. 1 is a schematic diagram showing an embodiment of the insulated wire of the present invention.
In these figures, 1 is a conductor, 2 is a soldering insulating film, 2 'is an antioxidant-added soldering insulating film, 3 is a polyester-based insulating film, 3' is an antioxidant-added polyester-based insulating film, and 5 is solder. This is an insulated wire with improved attachment / electrical service life.
本発明の絶縁電線の第1実施形態(実施例1)について図1を用いて説明する。
導体(1)として、導体径0.202mmの銅線上に東特塗料社製耐熱はんだ付け可能なエナメル塗料 TSF−440−N(商品名)(濃度40%)を皮膜厚が0.009mmとなるよう塗布,焼付してはんだ付け絶縁皮膜(2)を設け、この外周に東特塗料社製ポリエステル系エナメル塗料 Liton3330(商品名)を皮膜厚が0.002mmとなるよう塗布,焼付してポリエステル絶縁皮膜を設け、はんだ付け・課電寿命向上絶縁電線(5)を製造した。
1st Embodiment (Example 1) of the insulated wire of this invention is described using FIG.
As the conductor (1), an enamel paint TSF-440-N (trade name) (concentration: 40%) manufactured by Tohoku Paint Co., Ltd. on a copper wire having a conductor diameter of 0.202 mm has a film thickness of 0.009 mm. Applying and baking to provide a soldering insulation film (2), and coating and baking polyester enamel paint Liton 3330 (trade name) manufactured by Tohoku Paint Co., Ltd. to a film thickness of 0.002 mm on the outer periphery. A coating was provided to produce an insulated wire (5) with improved soldering and charging life.
本発明の絶縁電線の第2実施形態(実施例2)について図1を用いて説明する。
導体(1)として、導体径0.202mmの銅線上に東特塗料社製耐熱はんだ付け可能なエナメル塗料 TSF−440−N(商品名)(濃度40%)を皮膜厚が0.009mmとなるよう塗布,焼付してはんだ付け絶縁皮膜(2)を設け、この外周に東特塗料社製ポリエステル系エナメル塗料 Liton3330(商品名)を皮膜厚が0.004mmとなるよう塗布,焼付してポリエステル絶縁皮膜を設け、はんだ付け・課電寿命向上絶縁電線(5)を製造した。
2nd Embodiment (Example 2) of the insulated wire of this invention is described using FIG.
As the conductor (1), an enamel paint TSF-440-N (trade name) (concentration: 40%) manufactured by Tohoku Paint Co., Ltd. on a copper wire having a conductor diameter of 0.202 mm has a film thickness of 0.009 mm. Apply and baked to provide a soldering insulation film (2). Polyester enamel paint Liton 3330 (trade name) manufactured by Tohoku Paint Co., Ltd. is applied and baked to a thickness of 0.004 mm on the outer periphery. A coating was provided to produce an insulated wire (5) with improved soldering and charging life.
本発明の絶縁電線の第3実施形態(実施例3)について説明する。なお本実施例3は、はんだ付け絶縁塗料に酸化防止剤が添加・混合されている例を示す。
―酸化防止剤添加はんだ付け絶縁塗料の調製―
東特塗料社製耐熱はんだ付け可能なエナメル塗料 TSF−440−N(商品名)(濃度40%) 500gにチバ・スペシャリティ・ケミカルズ社製 IRGANOX1135(商品名) 20.1gを添加し、撹拌・混合を行い、酸化防止剤添加はんだ付け絶縁塗料を調製した。
3rd Embodiment (Example 3) of the insulated wire of this invention is demonstrated. In addition, this Example 3 shows the example by which antioxidant is added and mixed with the soldering insulation coating material.
―Preparation of anti-oxidant added soldering insulation paint―
Heat-resistant solderable enamel paint manufactured by Tohoku Paint Co., Ltd. TSF-440-N (trade name) (concentration 40%) Add 20.1 g of IRGANOX 1135 (trade name) made by Ciba Specialty Chemicals to 500g, and stir and mix An anti-oxidant-added soldering insulating paint was prepared.
―はんだ付け・課電寿命向上絶縁電線の製造―
導体(1)として、導体径0.202mmの銅線上に上記酸化防止剤添加はんだ付け絶縁塗料を皮膜厚が0.009mmとなるよう塗布,焼付して酸化防止剤添加はんだ付け絶縁皮膜(2’)を設け、この外周に東特塗料社製ポリエステル系エナメル塗料 Liton3330(商品名)を皮膜厚が0.003mmとなるよう塗布,焼付してポリエステル絶縁皮膜を設け、はんだ付け・課電寿命向上絶縁電線(5)を製造した。
―Manufacture of insulated wires with improved soldering and charging life―
As the conductor (1), the above-mentioned antioxidant-added soldering insulating coating is applied onto a copper wire having a conductor diameter of 0.202 mm and baked to a film thickness of 0.009 mm, and the antioxidant-added soldering insulating film (2 ' ), And a polyester-based enamel paint manufactured by Tohoku Paint Co., Ltd. (Litton 3330) (product name) is applied and baked to a film thickness of 0.003 mm. An electric wire (5) was produced.
本発明の絶縁電線の第4実施形態(実施例4)について説明する。なお本実施例4は、はんだ付け絶縁塗料にキレート化剤が添加・混合されている例を示す。
―キレート化剤添加はんだ付け絶縁塗料の調製―
東特塗料社製耐熱はんだ付け可能なエナメル塗料 TSF−440−N(商品名)(濃度40%) 500gにキレスト社製 MZ−4A(商品名) 0.2gを添加し、撹拌・混合を行い、キレート化剤添加はんだ付け絶縁塗料を調製した。
A fourth embodiment (Example 4) of the insulated wire of the present invention will be described. In addition, this Example 4 shows the example by which the chelating agent is added and mixed with the soldering insulation coating material.
-Preparation of chelating agent added soldering insulation paint-
Heat-resistant solderable enamel paint made by Tohoku Paint Co., Ltd. TSF-440-N (product name) (concentration 40%) Add 0.2g of MZ-4A (product name) made by Kirest Co. to 500g, and stir and mix A chelating agent-added soldering insulating paint was prepared.
―はんだ付け・課電寿命向上絶縁電線の製造―
導体(1)として、導体径0.202mmの銅線上に上記キレート化剤添加はんだ付け可能絶縁塗料を皮膜厚が0.009mmとなるよう塗布,焼付して酸化防止剤添加はんだ付け絶縁皮膜(2’)を設け、この外周に東特塗料社製ポリエステル系エナメル塗料 Liton3330(商品名)を皮膜厚が0.003mmとなるよう塗布,焼付してポリエステル絶縁皮膜を設け、はんだ付け・課電寿命向上絶縁電線(5)を製造した。
―Manufacture of insulated wires with improved soldering and charging life―
As the conductor (1), the above-mentioned chelating agent-added solderable insulating coating is applied to a copper wire having a conductor diameter of 0.202 mm so as to have a coating thickness of 0.009 mm and baked to provide an antioxidant-added soldering insulating coating (2 ') And polyester enamel paint manufactured by Tohoku Paint Co., Ltd., Liton 3330 (trade name) is applied and baked to a thickness of 0.003mm on the outer periphery to provide a polyester insulation film to improve the soldering and electrical service life An insulated wire (5) was produced.
比較例1
特に図示しないが、導体として、導体径0.202mmの銅線上に東特塗料社製耐熱はんだ付け可能なエナメル塗料 TSF−440−N(商品名)を皮膜厚が0.013mmとなるよう塗布,焼付してはんだ付け絶縁皮膜を設け、はんだ付け絶縁電線を製造した。
Comparative Example 1
Although not shown in particular, as a conductor, an enamel paint TSF-440-N (trade name) that can be heat-resistant soldered on a copper wire having a conductor diameter of 0.202 mm is applied to a film thickness of 0.013 mm. Baking was provided with a soldering insulation film to produce a soldered insulated wire.
―特性評価試験―
本発明の絶縁電線と比較例の絶縁電線について、JIS C 3003“エナメル線試験方法”に従い、特性評価試験を行った。その結果を下記表1に示す。なお、課電寿命特性については、耐パルス特性により評価している。
なお、ポリエステル系エナメル塗料のみに酸化防止剤等が添加・混合されているもの、また、はんだ付け可能な絶縁塗料及びポリエステル系絶縁塗料に酸化防止剤等が添加・混合されているものについても、はんだ付け・課電寿命向上絶縁電線を製造して特性評価試験を行ったが、特性は実施例3の絶縁電線と殆んど同じであった。
-Characterization test-
About the insulated wire of this invention and the insulated wire of the comparative example, the characteristic evaluation test was done according to JISC3003 "Enamel wire test method". The results are shown in Table 1 below. Note that the electric charging life characteristics are evaluated by pulse resistance characteristics.
It should be noted that only those polyester-based enamel paints that are added and mixed with antioxidants, and those that are soldered and paint-based insulation paints and those that are added and mixed with polyester-based insulating paints, An insulated electric wire with improved soldering / electric charge life was manufactured and subjected to a characteristic evaluation test. The characteristics were almost the same as those of the insulated electric wire of Example 3.
本発明の絶縁電線は、はんだ付けが可能で、且つ課電寿命を向上させた絶縁電線であるので、耐インバータサージエナメル線等に利用可能である。 Since the insulated wire of the present invention is an insulated wire that can be soldered and has an improved electrical life, it can be used for an inverter surge-proof enamel wire or the like.
1 導体
2 はんだ付け絶縁皮膜
2’ 酸化防止剤添加はんだ付け絶縁皮膜
3 ポリエステル系絶縁皮膜
5 はんだ付け・課電寿命向上絶縁電線
DESCRIPTION OF SYMBOLS 1 Conductor 2 Soldering insulation film 2 'Antioxidant addition soldering insulation film 3 Polyester-type insulation film 5 Soldering and electric service life improvement insulated wire
Claims (2)
The polyurethane-based insulating paint or the heat-resistant solderable insulating paint or / and the polyester-based insulating paint are added and mixed with an antioxidant or a chelating agent dissolved in a liquid resin or solvent. The insulated wire for improving the soldering / electric charging life according to claim 1.
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JPH0676639A (en) * | 1992-07-02 | 1994-03-18 | Furukawa Electric Co Ltd:The | Insulated electric cable |
JP2000331539A (en) * | 1999-05-21 | 2000-11-30 | Hitachi Cable Ltd | Inverter surge resistant enameled wire |
JP2002231060A (en) * | 2001-01-29 | 2002-08-16 | Totoku Electric Co Ltd | Magnetic wire |
JP2005078883A (en) * | 2003-08-29 | 2005-03-24 | Hitachi Magnet Wire Corp | Complex enamel wire |
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