Teardrop-shaped magnetic core and coil device using same
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United States of America Patent
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Jan 31, 2017
Grant Date -
Nov 19, 2015
app pub date -
Jun 26, 2013
filing date -
Jul 13, 2012
priority date (Note) -
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Abstract
The present invention provides a teardrop-shaped magnetic core having excellent manufacturing efficiency, a large initial inductance, and stable DC superposition characteristics and a coil device using this teardrop-shaped magnetic core. A teardrop-shaped magnetic core according to the present invention is a magnetic core that is made from a magnetic material and is to be used in a coil device 20, the magnetic core including a first rectilinear portion 11 and a second rectilinear portion 15 that have a straight-line shape and are connected to each other at one end via a bent portion 16 that is bent at a right angle, and a circular arc portion 17 that has a circular arc shape and connects the first rectilinear portion and the second rectilinear portion to each other at the other end. A coil device according to the present invention is configured by winding a wire around the teardrop-shaped magnetic core 10.
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