Inductor devices – With temperature modifier – Ventilating passages
Patent
1989-01-13
1990-09-11
Kozma, Thomas J.
Inductor devices
With temperature modifier
Ventilating passages
165179, 336 61, H01F 2710
Patent
active
049566261
ABSTRACT:
Plate fin heat exchangers (11,12 or 34,35,36) for transformers (10) and inductors (30) made of laminated iron cores (16 and 44) and insulated wire coils (13,14,15 or 45, 46, 47, 48) placed around the legs of the cores (16 and 44) is provided in the form of a plate fin between the coils of wire. The wire coils (13,14,15 or 45,46,47,48) and respective heat exchangers (11,12 or 34,35,36) are sandwiched together with the leg of the iron core (16 or 44) passing through the sandwich. The heat generated in the coils is in direct contact with the surface of the heat exchangers (11,12 or 34,35,36). A narrow air gap (28 or 49) is incorporated in each of the plate fin heat exchangers (11,12 or 34,35,36) at the core leg of each coil (13,14,15 or 45,46,47,48) to reduce the path eddy currents can travel and thereby reduce eddy current losses which reduce the power of the transformer (10) or inductor (30).
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Hoppe Richard J.
Metzler Mark W.
Kozma Thomas J.
Sundstrand Corporation
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