Electromechanical transducer and electrocoustic transducer
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United States of America Patent
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Mar 29, 2016
Grant Date -
Sep 18, 2014
app pub date -
Jan 29, 2014
filing date -
Mar 15, 2013
priority date (Note) -
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Abstract
An electromechanical transducer of the invention comprises a structural unit, an armature, and first and second elastic members. The structural unit includes at least one pair of magnets, a yoke conducting a magnetic flux generated by the magnets, and a coil supplied with an electric signal. The armature has an inner portion disposed to pass through an internal space of the structural unit and first and second outer portions protruding on both sides from the inner portion, and the armature constitutes a magnetic circuit with the structural unit via two regions through which components of the magnetic flux flow in directions opposite to each other in the inner portion. The first and second elastic members connect between the first and second outer portions of the armature and the structural unit, respectively.
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