Transformer
AssigneeKoito Manufacturing Co., Ltd.
InventorTomoyuki Ichikawa
Life of this patent
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Abstract
A transformer is provided with a coil portion containing primary windings and a secondary winding. Cores sandwich the coil portion. Each of these windings includes a toroidal-shaped portion that is formed by winding flat type wires in a toroidal shape and by overlapping these flat type wires. Edge portions of this flat type wire are derived from the toroidal-shaped portion respectively. A plurality of windings and the cores are arranged along an overlapping direction of the flat type wires. employed, By this structure, a copper loss caused by the skin effect can be reduced and the electromagnetic coupling conditions between the windings can be improved.
Claims8
A transformer comprising:
- a coil including a plurality of windings;
- and
- a plurality of cores sandwiching said coil, wherein
- said winding of the coil has a toroidal-shaped portion, which is formed by winding and overlapping a flat wire in a toroidal shape, and ends of said flat type wire extend from said toroidal-shaped portion;
- and
- said plurality of windings and said plurality of cores are coupled in a direction along which said flat type wire overlaps.
Dependencies are inferred from the claim text.