Electromagnetic actuator, active vibration damper using the same, and method of manufacturing electromagnetic actuator
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United States of America Patent
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Issued Date -
Nov 30, 2017
app pub date -
May 10, 2017
filing date -
May 27, 2016
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Abstract
An electromagnetic actuator including: a stator and a mover configured to have an oscillation force exerted between them, the stator and the mover being arranged in a direction orthogonal to a direction of oscillation with a space in between; and at least one plate spring connecting the stator and the mover to each other, the plate spring permitting relative displacement of the stator and the mover in the direction of oscillation while positioning the stator and the mover with respect to each other in the direction orthogonal to the direction of oscillation, wherein at least one through hole piercing the plate spring in a thickness direction is formed in a portion of the plate spring that corresponds to the space between the stator and the mover.
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