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US 7,376,240 B2Granted
Coil for an electroacoustic transducer
AssigneeSonion Horsens A/S
InventorsKaj Borge Hansen, Leif Johannsen
Life of this patent
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Abstract
An electroacoustic transducer comprising a magnetic circuit of a magnetically conductive material with a pair of opposed surfaces defining a gap therebetween, the magnetic circuit comprising a magnet inducing a magnetic field in the gap, the magnet having a surface constituting one of the opposed surfaces. The magnetic circuit further comprises a diaphragm and a coil having electrically conducting paths secured to the diaphragm. The coil has portions of its paths situated in the gap.
Claims5
An electroacoustic transducer coil comprising
- electrically conducting coil parts forming bridging portions defining a bridging plane having a substantially flat surface for securing the coil to a diaphragm, and
- gap portions outside the bridging plane, each gap portion comprising a plurality of electrically conducting coil segments being substantially parallel to the bridging plane.
An electroacoustic transducer coil comprising
- bridging portions defining a bridging plane having a substantially flat surface for securing the coil to a diaphragm, and
- gap portions outside the bridging plane, each gap portion comprising a plurality of electrically conducting coil segments being substantially parallel to the bridging plane, wherein the coil is formed by electrically conducting paths formed on a flexible circuit board, such as a flexprint.
Dependencies are inferred from the claim text.