Provided is a rectangular insulated wire having an improved flex resistance property by achieving both an improvement in adhesion between insulating layers and prevention of occurrence of a crack reaching a conductor, while maintaining flexibility and resistance to thermal softening, and further having an excellent AFT-resistant property. A rectangular insulated wire (1) is provided with a rectangular conductor (2) having a generally rectangular cross section, a thermosetting resin layer (3) formed to cover the rectangular conductor, a thermoplastic resin layer (4) formed to cover the thermosetting resin layer, and a thermoplastic resin layer (5) formed to cover the thermoplastic resin layer (4). An adhesion strength between the thermosetting resin layer (3) and the thermoplastic resin layer (4) and an adhesion strength between the thermoplastic resin layers (4) and (5) are 50 gf/mm to 100 gf/mm, respectively. In the thermoplastic resin layer (4), a relative crystallinity calculated based on heat of fusion and heat of crystallization measured by differential scanning calorimetry is greater than or equal to 20% and less than or equal to 50%.
RECTANGULAR INSULATED WIRE AND ELECTRIC GENERATOR COIL
RECHTECKIGER ISOLIERTER DRAHT UND STROMGENERATORSPULE
FIL ÉLECTRIQUE ISOLÉ RECTANGULAIRE ET BOBINE DE GÉNÉRATEUR ÉLECTRIQUE
2024-01-17
Patent
Elektronische Ressource
Englisch
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