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    • 10. 发明专利
    • ROLLED CORE TRANSFORMER
    • JPS59232407A
    • 1984-12-27
    • JP10709983
    • 1983-06-15
    • TOSHIBA KK
    • FUKAGAWA KIMIHIRO
    • H01F27/24H01F30/00H01F30/16H01F31/00
    • PURPOSE:To form a small size transformer tank by winding a ribbon-shaped amorphous magnetic alloy thin belt around a ring-shaped winding in total length. CONSTITUTION:A winding 11 consisting of a low voltage side winding 11a and a high voltage side winding 11b by winding a metal foil and the surface thereof is covered with a sheet of insulator 13. An iron core 14 is formed by winding in spiral a ribbon-shaped amorphous magnetic alloy thin belt around the insulator 13 for total length in the circumferencial direction. A transformer tank 15 is formed cylindrically and has a cylindrical space 16 passing throught the axial direction at the center. The interior of transformer is accommodated in the internal space surrounded by the external circumferencial wall 15a and internal circumferencial wall 15b and is immersed in the insulation oil. A coil is formed in a ring-shape and the iron core is wound for the total circumference, eliminating unnecessary space between the transformer and tank. Thereby, a small size tank can be realized.