| 发明名称 |
|
| 摘要 |
<p>PURPOSE:To obtain an electric coil which has no danger of smoke generation nor inflammation even at the last stage of useful life by winding into coil an enameled wire wherein a conductor is coated with polyol, an inner insulation film and an outer insulation film one after another. CONSTITUTION:Polyol can be obtained by transesterifying and polycondensing polyhydric alcohol wherein the molecular structure has an urethane bonding and polyhydric carboxylic acid in an organic solvent. An inner insulation film is made of an insulation paint wherein the main element is clock polyhydric isocyanide wherein the NCO group against the residual OH group in polyol has an NCO/OH equivalent ratio of 1 or more and preferably nearly 1. An outer insulation film is made of an insulation paint wherein the main element is polyamide or epoxy denatured polyurethane. These three materials are coated on a conductor one after another and a finished enameled wire is wound into a coil. This enables to obtain an electric coil which has no danger of smoke generation nor inflammation even at the last stage of useful life.</p> |
| 申请公布号 |
JPH0469403(B2) |
申请公布日期 |
1992.11.06 |
| 申请号 |
JP19830198868 |
申请日期 |
1983.10.24 |
| 申请人 |
TOSHIBA KEMIKARU KK;TOKYO DENKI KK |
发明人 |
ITO JUJI;KONISHI TADAAKI;UMEHARA KOICHI;YASUTOMI SATOSHI |
| 分类号 |
H05B3/56;B32B15/02;H01B3/30;H01B7/02;H01F5/06;H01H37/76;H01H85/00;H01H85/04 |
主分类号 |
H05B3/56 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
