Electromagnetic coil, method of manufacturing electromagnetic coil, and electromagnetic actuator
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United States of America Patent
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Nov 29, 2016
Grant Date -
Nov 19, 2015
app pub date -
Jul 29, 2015
filing date -
Aug 2, 2013
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Abstract
An electromagnetic coil includes a conductor winding 12a formed by winding a conductor 12b a plurality of times about a predetermined axis, and a ceramic layer 12c formed through thermal spraying on an axial end surface of the conductor winding 12a, and having a flattened surface. A maximal value t12 of thickness of the ceramic layer 12c is set to three times or less a maximal value t11 of depth of the recesses formed at the surface of turns of the conductor 12b at the axial end surface.
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