Inductor devices – With temperature modifier – Ventilating passages
Patent
1993-07-30
1994-12-27
Kozma, Thomas J.
Inductor devices
With temperature modifier
Ventilating passages
336197, 336223, H01F 2708, H01F 2730
Patent
active
053769112
ABSTRACT:
A choke coil comprises mutually similar flat bars which are electrically connected at the corners. Each coil winding comprises an integral number of mutually similar flat bars which in each case lie on top of one another on contact areas at the corners so as to overlap over a large area. Insulating plates and/or insulating layers having a size approximately equal to the contact area are provided between two adjacent windings at the corners. The stack formed in this way is held together exclusively by means of a clamping device comprising clamping elements which do not cut or pierce the flat bars. A choke constructed in this manner is simple and economical to manufacture can be cooled well and can be produced in virtually any size.
REFERENCES:
patent: 316354 (1885-04-01), Gauland et al.
patent: 1539928 (1925-06-01), Angus
patent: 3153212 (1964-10-01), Davis
patent: 4129846 (1978-12-01), Yablochnikov
patent: 4814735 (1989-03-01), Williamson
Held, W.; Pollmeir, J.; Neue TFH-Sperren und Abstimmsatze, In: Siemens-Zeitschrift, H.10, S. 613-617; Abschnitt "Bauformen".
DE-Z: elektrowarme international, Ausgabe B, Bd. 41, 1983, H.4,S.B177.
Asea Brown Boveri Ltd.
Kozma Thomas J.
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