Method for producing a transformer coil, and a transformer...

Details Method for producing a transformer coil, and a transformer... Method for producing a transformer coil, and a transformer...

2007-12-07

2010-12-07

Mai, Anh T (Department: 2832)

Inductor devices

Winding formed of plural coils

Two windings

C336S208000, C336S222000

Reexamination Certificate

active

07847665

ABSTRACT:
A method for winding a coil for a transformer comprising providing a cylindrical inner tube of insulating material including a radially outwardly projected first end wall section disposed at a first end of the cylindrical inner tube and a radially outwardly projecting second wall section disposed at a second end of the cylindrical inner tube; winding a first insulating layer onto the cylindrical inner tube so as to extend to the first end wall section and the second end wall section; and winding a first winding wire layer onto the first insulating layer so as to provide a first distance between a first end of the first winding wire layer and the first wall section and a second distance between a second end of the first winding layer and the second end wall section.

REFERENCES:
patent: 4518941 (1985-05-01), Harada
patent: 5374810 (1994-12-01), Gantt
patent: 5404123 (1995-04-01), Joseph
patent: 5861791 (1999-01-01), Schneider
patent: 5917397 (1999-06-01), Sasahara et al.
patent: 6404316 (2002-06-01), Busletta et al.
patent: 7095308 (2006-08-01), Kobayashi et al.
patent: 7164338 (2007-01-01), Odell et al.
patent: 2004/0003492 (2004-01-01), Wu
patent: WO-2006069590 (2006-07-01), None
International Search Report for PCT/EP2007/010650, mailed on Jun. 6, 2008.

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