H - Electricity – 04 – R
Patent
H - Electricity
04
R
349/28
H04R 25/02 (2006.01) H05K 1/18 (2006.01) H05K 3/00 (2006.01)
Patent
CA 1248217
ABSTRACT A miniature hearing aid is disclosed with input transducer (18), amplifier (19) and control elements (8, 10) as well as a current source and output transducer (20), where at least a part of the amplifier (19) is applied on mounting surfaces hinged together and lying on mounting plates (46 to 49) and the articulated connections (60 to 63) have a flexible support provided with electrically conducting tracks (50 to 52, 57). The desideratum is, in view of the small space in miniature hearing aids, to obtain a large area for the application of the structural part or elements. This is achieved according to the invention in that the amplifier (19) is designed as a multi-layered system which comprises at least three layers (40 to 42), of which the two outer ones (42, 43) carry the physical or structural elements (53, 54, 54.2), lie at a so-called neutral intermediate layer (40) provided with conductor paths (57), and are subdivided at several mutually opposite points into structural sections, and that the mechanical strength of the intermediate layer (40) permits deformation of the arrangement. The invention is applicable for hearing aids to be worn in the vicinity of the ear, in particular hearing aids to be worn behind the ear.
483968
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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