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Publication Number
US-12523634-B2
Publication Date
2026-01-13
Expiration Date
Abstract
An electromagnetic transducer, including a plurality of static flux paths, and a plurality of dynamic flux paths, wherein at least two of the plurality of static flux paths lie in respective first planes parallel and offset from one another, at least two of the plurality of dynamic flux paths lie in respective second planes parallel and offset from one another, and the first planes and the second planes are arrayed so as to establish at least a general tic-tac-toe lattice.
Core Innovation
The invention relates to an electromagnetic transducer that includes at least two dynamic magnetic flux circuits. Alternating current provided to the at least two dynamic magnetic flux circuits during operation causes a surface of an airgap of the device to move so that the device generates vibrations. The architecture uses multiple static and dynamic magnetic flux paths or circuits arranged in parallel-offset planes forming a tic-tac-toe lattice.
The transducer is described in embodiments where motion is generated by interaction of dynamic flux circuits with static flux circuits across an active non-axial air gap. In balanced bone-conduction and hearing prosthesis embodiments, static flux is associated with flux generated by permanent magnets, and the dynamic magnetic flux directions are described as counter-traveling between circuits. Mechanically coupled dynamic circuits are also described as having bender or flap-like behavior and as being integrated with a seismic mass and springs as flux conduits that eliminate some air gaps.
The disclosed configurations include tuning two dynamic magnetic flux circuits for different frequency responses, described in terms of coil turns or wire thickness. The document also describes a flux-circuit routing arrangement with dynamic and static orthogonal planes, opposite-direction flux traversal, and an electrical system in which the impedance of the electrical system equals the sum of impedances of the two dynamic magnetic flux circuits. Additional described relationships include air-gap expansion and contraction amplitude, spring magnetically saturated behavior, and resonance frequency ranges.
Claims Coverage
The record provides two independent claims. Across the independent claims, the inventive subject matter is the use of at least two dynamic magnetic flux circuits driven by alternating current to move a surface of an airgap and generate vibrations, optionally combined with additional structural or electrical features.
Multiple dynamic magnetic flux circuits to move an airgap surface and generate vibrations
An electromagnetic transducer including at least two dynamic magnetic flux circuits, configured so that alternating current provided to the at least two dynamic magnetic flux circuits during operation causes a surface of an airgap of the device to move so that the device generates vibrations.
Transducing electricity into movement using dynamic magnetic flux circuits with vibration generation
Means for transducing electricity into movement, the means including at least two dynamic magnetic flux circuits, configured so that alternating current provided to the at least two dynamic magnetic flux circuits during operation causes a surface of an airgap of the device to move so that the device generates vibrations; and at least one of a seismic mass or a coupling.
The independent claim set centers on vibration generation by alternating current-driven airgap motion produced through at least two dynamic magnetic flux circuits, with one independent claim adding at least one of a seismic mass or coupling.
Stated Advantages
Documented Applications
No documented applications found
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