Planar transformer having integrated cooling features

Details Planar transformer having integrated cooling features Planar transformer having integrated cooling features

1998-04-02

2000-11-07

Gellner, Michael L.

Inductor devices

With temperature modifier

Heat exchanging surfaces

336200, 336225, 336223, H01F 500, H01F 2708

Patent

active

061442763

ABSTRACT:
A planar electromagnetic device, such as a planar transformer or planar inductor, is provided with features for cooling that are formed integrally with the windings of the planar device. In a preferred embodiment the planar device uses winding layers (200) having fin portions (116). In a first alternative embodiment a helical winding (500) is formed from a winding stamping (400) having fin portions (412). In a second alternative embodiment, tube portions (802) are formed in a winding stamping (700) used to form a helical winding.

REFERENCES:
patent: 5010314 (1991-04-01), Estrov
patent: 5367760 (1994-11-01), Terlop et al.
patent: 5473302 (1995-12-01), Terlop et al.
patent: 5495213 (1996-02-01), Ikeda
patent: 5543773 (1996-08-01), Evans et al.
Williamson, The HeliCoil, Powerconversion International, pp. 10, 13-15, vol. 8, No. 9, Oct. 1982.

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