Patent ID: 6075866
Filing Date: 2000-06-13
Classification: H04R

Abstract:
An electroacoustic transducer comprising a housing, a voice coil, and a diaphragm for cooperating with an air mass in an acoustic free space situated in front of the diaphragm, said diaphragm capable of being set into vibration by the voice coil substantially parallel to an axis of said electroacoustic transducer, said diaphragm further comprising an annular outer zone and supporting means for securing the diaphragm to the housing, said supporting means having a first annular zone connected to the annular outer zone of the diaphragm, a second annular zone connected to the housing, and a connecting zone which connects the first annular zone to the second annular zone, said connecting zone having an, at least substantially, corrugated cross-sectional shape, and having an orientation corresponding, at least substantially, to the direction of vibration of the diaphragm, and being further elastically compliant parallel to the direction of vibration of the diaphragm, characterized in that the diaphragm and the supporting means form a single part, the annular outer zone of the diaphragm and the first annular zone of the supporting means adjoin one another smoothly, and, viewed transverse to the direction of vibration of the diaphragm, the connecting zone of the supporting means has a dimension such that the second annular zone of the supporting means, said second annular zone being connected to the housing, is spaced at a given distance below a bottom-most part of the diaphragm in a direction parallel to the direction of vibration and away from the acoustic free space situated in front of the diaphragm.