EP 3065420 B1 20200624 - ELECTROMAGNETIC SIGNAL CONVERTER FOR A BONE CONDUIT EARPIECE
Title (en)
ELECTROMAGNETIC SIGNAL CONVERTER FOR A BONE CONDUIT EARPIECE
Title (de)
ELEKTROMAGNETISCHER SIGNALWANDLER FÜR EINEN KNOCHENLEITUNGSHÖRER
Title (fr)
CONVERTISSEUR DE SIGNAL ELECTROMAGNETIQUE POUR UN OSSIVIBRATEUR
Publication
Application
Priority
AT 501752015 A 20150305
Abstract (en)
[origin: US2016261958A1] The invention relates to an electromagnetic signal converter for an osteophone, comprising a soft magnetic yoke (1), an electrical coil (2) arranged concentrically to the longitudinal axis of the yoke (1), an elastically suspended, soft-magnetic armature (4) which, viewed in the direction of the longitudinal axis (5) of the yoke (1), is separated from the yoke (1) by a working air gap (8) and can move along the longitudinal axis (5) of the yoke (1), and a permanent magnet (9) which is magnetized in the direction of the longitudinal axis (5) of the yoke (1) in order to generate a magnetic biasing voltage of the yoke (1) and of the armature (4). In order to reduce the exciter output for the coil, it is provided that the permanent magnet (9) and the coil (2) do not overlap one another in the direction of the longitudinal axis of the yoke (1) and that means is provided for dividing the magnetic flux that can be produced by the coil (2) onto at least two flux paths, wherein one flux path runs outside of the permanent magnet (9), as a result of which the total magnetic resistance of the magnetic circuit is minimized, viewed from the coil (2).
IPC 8 full level
H04R 13/00 (2006.01); H04R 25/00 (2006.01)
CPC (source: AT CN EP US)
H04R 1/00 (2013.01 - AT); H04R 1/10 (2013.01 - CN); H04R 9/025 (2013.01 - CN US); H04R 11/02 (2013.01 - EP US); H04R 13/00 (2013.01 - EP US); H04R 31/006 (2013.01 - US); H04R 25/606 (2013.01 - EP US); H04R 2209/022 (2013.01 - EP US); H04R 2209/024 (2013.01 - EP US); H04R 2460/13 (2013.01 - CN EP US)
Citation (examination)
US 2007053542 A1 20070308 - LEE DONG-WON [KR]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3065420 A1 20160907; EP 3065420 B1 20200624; AT 516871 A1 20160915; AT 516871 B1 20180315; CN 106060724 A 20161026; CN 106060724 B 20200313; DK 3065420 T3 20200921; US 2016261958 A1 20160908; US 9699566 B2 20170704
DOCDB simple family (application)
EP 16158871 A 20160307; AT 501752015 A 20150305; CN 201610344896 A 20160304; DK 16158871 T 20160307; US 201615052256 A 20160224