| 摘要 |
Foil windings C1, C2 or a method of forming foil windings, comprises: a continuous length of foil strip 30 forming first and second winding sections 31, 32 interconnected by a further folded section 33. The first and second winding sections 31, 32 are formed around an axis parallel with the respective width direction of the foil strip forming them. The axes of the first and second foil windings C1, C2 may be coaxial, parallel or non-parallel. The folded intersection 33 may include overlapping regions of foil strip 33a, 33b, 33c. The foil strip may include a slit which may allow folding to provide interconnection strips or the strip may be formed to include different foil strip widths providing H-shaped bridging formation. Two interconnections may be formed by folding strip portions in opposite directions relative to the foil strip width direction. The foil strip 30 may be made from aluminium or copper material. The foil windings C1, C2 may be simple to produce and only require connections at either end of the foil strip 30. The foil windings C1, C2 may be used to provide compact, efficient electromagnetic device arrangements suitable for vehicle power converters or other applications. |
