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    • 3. 发明申请
    • A Transducer for Producing Vibrational Movement
    • US20230117699A1
    • 2023-04-20
    • US17780645
    • 2020-11-27
    • Nicholas Inoue
    • Nicholas Inoue
    • H02K33/16H02K11/01G08B6/00
    • This specification describes a transducer configured to convert electrical signals into vibrational movement. The transducer comprises an axially-magnetised reciprocating magnet magnetically suspended between first and second axially-magnetised stationary magnets located on opposing sides of the axially-magnetised reciprocating magnet, wherein the axially-magnetised reciprocating magnet comprises an aperture such that the reciprocating magnet has an inner boundary and an outer boundary. The transducer further comprises at least two pairs of concentrically positioned electromagnetic solenoids, the at least two pairs of concentrically positioned electromagnetic solenoids being configured to drive the reciprocating magnet to reciprocate in a volume between the first and second axially-magnetised stationary magnets. The first solenoid of each of the pairs of concentrically positioned electromagnetic solenoids is positioned to influence the reciprocating magnet at the inner boundary more than at the outer boundary, and a second solenoid of each of the pairs of concentrically positioned electromagnetic solenoids is positioned to influence the reciprocating magnet at the outer boundary more than at the inner boundary