To provide a magnetic device that employs magnetic materials with high saturated flux density and good radiative properties as cores of transformers or choke coils, as well as capable of preventing accidents due to heating by detecting quickly and accurately a temperature rise of winding caused by an excessive current flowing through the winding.
The magnetic device includes (a) core including a magnetic material of amorphous metal, and a transformer having a winding group including primary winding and secondary winding wound around the core; (b) a set of primary terminals and a set of secondary terminals; and (c) fuses connected in series between one end of the primary winding of the transformer, and the primary terminal, and between one end of the secondary winding of the transformer and the one of one set of the secondary terminals, as well as fixed on an inner side or outer side of the winding group, and designed to be cut at a lower temperature than Curie point of the amorphous metal.
COPYRIGHT: (C)2008,JPO&INPIT
KOBAYASHI TAKAHIRO
TAKAHASHI HIROAKI
| JPH04273412A | 1992-09-29 | |||
| JPH09285113A | 1997-10-31 | |||
| JPH1167558A | 1999-03-09 | |||
| JPH05205957A | 1993-08-13 | |||
| JPS59175331A | 1984-10-04 | |||
| JPH02819U | 1990-01-05 | |||
| JPH0718408U | 1995-03-31 |
Atsushi Watanabe
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