Multi-layered insulated wire for high frequency transformer wind

Details Multi-layered insulated wire for high frequency transformer wind Multi-layered insulated wire for high frequency transformer wind

1994-01-18

1994-11-08

Nimmo, Morris H.

Electricity: conductors and insulators

Conduits, cables or conductors

Insulated

174110FC, 174110SR, 174120SR, H01B 734

Patent

active

053629256

ABSTRACT:
A bundled conductor manufactured by bundling a plurality of small diameter conductors 1, or a bundled conductor 2 manufactured by giving an extremely rough twisting pitch, which is 20 times or more larger than an outer diameter of said bundled conductor, to the bundled conductor is formed. Then, an insulating layer 3 comprising 3 layers 3a, 3b and 3c, each comprising a heat-resistant plastic film, is arranged around the bundled conductor above. A required voltage resistance characteristics is provided and maintained by any 2 of the aforesaid 3 insulating layers, and each of the 3 insulating layers described above is independent respectively and can be separated from other ones.
The multi-layered insulated wire constructed described above is available as an insulated electric wire for a winding to be used in a transformer which satisfies various requirements for safety such as IEC and UL, and with this multi-layered insulated wire it is possible to suppress heat emission in a high frequency switching transformer.

REFERENCES:
patent: 2795640 (1957-06-01), Crandall
patent: 3422215 (1969-01-01), Humes
patent: 3425865 (1969-02-01), Shelton, Jr.
patent: 3617617 (1971-11-01), Katz
patent: 4273829 (1981-06-01), Perreault
patent: 4401845 (1983-08-01), Odner et al.
patent: 4510348 (1985-04-01), Arroyo et al.
patent: 4595793 (1986-06-01), Arroyo et al.
patent: 4801501 (1989-01-01), Harlow
patent: 4841099 (1989-06-01), Epstein et al.
patent: 5220133 (1993-06-01), Sutherland et al.

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