Core for wire-wound component and manufacturing method thereof and wire-wound component made therewith
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United States of America Patent
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Jan 3, 2017
Grant Date -
Jul 25, 2013
app pub date -
Jul 25, 2012
filing date -
Aug 2, 2011
priority date (Note) -
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Abstract
A drum core for a wire-wound component having a pair of flange parts provided on both ends of an axis core around which a winding wire is wound, with tapered surfaces of roughly conical shape formed on their facing inner surfaces in such a way that the interval of the inner surfaces increases toward the outer sides of the flange parts. The flange parts have roughly a rectangular shape and the sides along which their long side faces contact the tapered surfaces have the curved shapes that convex roughly at the center. The curved shapes make the height of the corners of the flange parts from the reference surface lower than the height of the convex parts of the curved shapes from the reference surface, and the loads received by the wire during winding are reduced as a result.
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