| 摘要 |
An adjustable pot core for inductance coils comprises a base-frame (1) formed by a body (11) which carries vertically placed coils (14), and by a stand (10) which supports the said body (11), one or more adjusting screws (2) inserted into a central hole (13) drilled in the said body and traversing the said coils (14), a cap (13) made from magnetic material disposed around the said body (11) on the said stand (10) and a metal shield (5) which covers the said cap (3) and attaches to the said stand (10) where in practice the adjustable pot core is used with several inductances or as transformers. Firstly a coiling (14) is effected and disposed in a mould (22) around a central screw (27), then a solidifiable insulating resin (29) is poured, covering the coiling (14) and taking up the shape of the thread of the central screw (27). The mould and the central screw are separated after solidification of the resin which then forms a base-frame (1) fixedly enveloping the coiling (14). <IMAGE>
|
