COIL DEVICE
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United States of America Patent
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Issued Date -
Aug 13, 2015
app pub date -
Aug 22, 2013
filing date -
Sep 11, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Provided is a coil device in which an insulation breakdown between unit winding portions can be suppressed effectively and which can be easily formed by hand winding. The coil device according to the present invention includes a ring-shaped core and at least one coil formed by continuously winding one conductor wire around the core. The coil is formed by a plurality of unit coil portions successively formed along a direction of a magnetic path of the core, the adjacent unit coil portions are electrically connected to each other at only one position, each of the unit coil portions is formed by a plurality of unit winding portions stacked at least on an inner peripheral side of the core, and a layered structure of each of the unit coil portions at least on the inner peripheral side of the core is formed by stacking the one unit winding portion on the two unit winding portions in a lower layer.
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